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New Strategy to Prepare Amorphous Nickel-Cobalt Hydroxides with High Areal Capacitance by One-Step Electrodeposition Process: Polymer as an Additive

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SSRN 2022年

作者： Hu, Wenxuan Fu, Huakang Chen, Lu Wu, Xing Huang, Yanling Xu, Yifei Du, Miao Song, Yihu Wu, Ziliang Zheng, Qiang Geng, Biao Shan, Guorong MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Hangzhou310027 China Zhejiang Hua Jiang Science & Technology Co. Ltd. Hangzhou311106 China State Key Laboratory of Chemical Engineering College of Chemical and Biological Engineering Zhejiang University Hangzhou310027 China

Nowadays, in order to gain high-performance supercapacitors with well-designed nanostructures, the preparation processes always possess sophisticated and time-consuming multiple steps. Here, we developed a facile and time-saving electrodeposition strategy to prepare amorphous nickel-cobalt hydroxides (NiCo-OHs) electrode with high areal specific capacitance by introducing polymers into the electrolyte. Polymer, with long chain, high solution viscosity and coordination effect, could induce a nondirectional growth of NiCo-OHs and form disordered structure with plentiful mesopores. After investigating the effects of polymers’ type and concentration on the growth process, amorphous NiCo-OHs with high mass loading were well anchored on the surface of carbon cloth. The amorphous phase and ample mesopores offer quantities of electrochemical active sites and high specific capacitance. The as-prepared amorphous NiCo-OHs electrode exhibits a highest areal capacitance of 9.0 F cm-2 at 2 mA cm-2, good rate capability with an areal capacitance of 4.5 F cm-2 at 50 mA cm-2 and long cyclic life (63% retention, 10000 cycles). Moreover, the assembled asymmetric supercapacitor exhibits a maximum power density of 58.1 mW cm-2 at a 260 μWh cm-2 energy density. This work offers a new sight to build transition metal hydroxides-based high performance supercapacitor electrodes with a fast and facile preparation technology. © 2022, The Authors. All rights reserved.

关键词： Sodium alginate

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Spontaneous Vertical Phase Distribution of Multi-Acceptors System Enables High-Efficiency Organic Photovoltaics in Non-Halogenated Solvent and Large-Area Module Application

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SSRN 2023年

作者： Kong, Xiangyue Zhan, Lingling Li, Shuixing Yin, Shouchun Qiu, Huayu Fu, Yuang Lu, Xinhui Chen, Zeng Zhu, Haiming Fu, Weifei Chen, Hongzheng Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education College of Material Chemistry and Chemical Engineering Hangzhou Normal University Hangzhou311121 China State Key Laboratory of Silicon Materials MOE Key Laboratory of Macromolecular Synthesis and Functionalization International Research Center for X Polymers Department of Polymer Science and Engineering Zhejiang University Hangzhou310027 China Department of Physics Chinese University of Hong Kong New Territories999077 Hong Kong Department of Chemistry Zhejiang University Hangzhou310027 China

Building a vertical phase distribution morphology with a simple method is the critical key for high-efficiency organic photovoltaics (OPVs) and their industrial application. Here, OPVs based on a quaternary system with one donor PM6 and three acceptors (L8-BO, BTP-S8, and BTP-S2) were fabricated. The L8-BO-based blend was demonstrated to show unique vertical phase distribution (acceptors enriched on the top surface), leading to an exquisite morphology and superior carrier behaviors, thus power conversion efficiencies (PCEs) of 19.19% (certified as 19.18%) and 19.04% were achieved for chloroform-processed and toluene-processed devices, respectively. The high efficiency obtained from greener solvent is encouraging for commercialization of OPVs. Notably, the device processed with toluene without any additives shows a PCE of 17.28% with good stability, and the upscaled large-area module with a total area of 72.25 cm2 processed in air presents an outstanding PCE of 12.78%. This work provides valuable insights into the fabrication of greener solvent and large-area module OPVs. © 2023, The Authors. All rights reserved.

关键词： Toluene

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Pyrene-based aggregation-induced emission: A bridge model to regulate aggregation

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Innovation 2025年

作者： Lin, Yuting Zhang, Jianyu Wang, Wen-Jin Tang, Zhenguo Fang, Xianying Xu, Xu Kühn, Fritz E. Zhao, Zheng Yong, Qiang Tang, Ben Zhong Cai, Xu-Min Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources Nanjing Forestry University Nanjing210037 China MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Hangzhou310058 China School of Science and Engineering Shenzhen Institute of Aggregate Science and Technology The Chinese University of Hong Kong Shenzhen518172 China Molecular Catalysis Department of Chemistry & Catalysis Research Center School of Natural Sciences Technische Universität München MünchenD-85747 Germany Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates Guangzhou510640 China

The aggregation process plays a significant role in regulating the aggregate structures from molecules toward macroscopic photophysical properties. Pyrene (Py), as the simplest dimer candidate, serves as a suitable model for studying the aggregation. Herein, a series of Py-based aggregation-induced emission (AIE) materials have been investigated by clarifying the comprehensive roles of oxygen, substituents, molecular motion, and packing during aggregation, initially realizing the aim of controlling aggregate structures. With a largely planar and conjugated conformation, Py shows anomalous AIE characteristics due to the oxygen quenching at the molecular level but turn-on fluorescence in the aggregate state because of the oxygen isolation. Although introducing substituents induces molecular motion and similarly weakened luminescence in the molecular state, the impact of substituents on the aggregate-state photophysical properties enormously differs, exhibiting from weak blue, strong cyan, and strong green to weak yellow emissions, due to variable aggregate structures. Interestingly, the natural alicycle-substituted Py-dehydroabietylamine (Py-DAA) exhibits both mechanochromism and acidichromism, which can be synergistically applied in dynamic encryption-decryption. This work not only elucidates the unique AIE property of Py for the first time but also clarifies the bridging role of aggregation between single-molecular and aggregate states, achieving preliminary control over the aggregate structures. © 2025 The Author(s)

关键词： Fluorescence

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Janus Poly(Vinylidene Fluoride)Membranes with Penetrative Pores for Photothermal Desalination

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研究（英文） 2020年第4期 251-261页

作者： Hao-Hao Yu Lin-Jiong Yan Ye-Cheng Shen Si-Yu Chen Hao-Nan Li Jing Yang Zhi-Kang Xu MOE Key Laboratory of Macromolecular Synthesis and Functionalization and Key Laboratory of Adsorption and Separation Materials(&)Technologies of Zhejiang Province Department of Polymer Science and Engineering Zhejiang UniversityHangzhou 310027 China MOE Key Laboratory of Macromolecular Synthesis and Functionalization and Key Laboratory of Adsorption and Separation Materials(&)Technologies of Zhejiang Province Department of Polymer Science and Engineering Zhejiang UniversityHangzhou 310027 China MOE Key Laboratory of Macromolecular Synthesis and Functionalization and Key Laboratory of Adsorption and Separation Materials(&)Technologies of Zhejiang Province Department of Polymer Science and Engineering Zhejiang UniversityHangzhou 310027 China MOE Key Laboratory of Macromolecular Synthesis and Functionalization and Key Laboratory of Adsorption and Separation Materials(&)Technologies of Zhejiang Province Department of Polymer Science and Engineering Zhejiang UniversityHangzhou 310027 China MOE Key Laboratory of Macromolecular Synthesis and Functionalization and Key Laboratory of Adsorption and Separation Materials(&)Technologies of Zhejiang Province Department of Polymer Science and Engineering Zhejiang UniversityHangzhou 310027 China MOE Key Laboratory of Macromolecular Synthesis and Functionalization and Key Laboratory of Adsorption and Separation Materials(&)Technologies of Zhejiang Province Department of Polymer Science and Engineering Zhejiang UniversityHangzhou 310027 China MOE Key Laboratory of Macromolecular Synthesis and Functionalization and Key Laboratory of Adsorption and Separation Materials(&)Technologies of Zhejiang Province Department of Polymer Science and Engineering Zhejiang UniversityHangzhou 310027 China

Solar-driven desalination has been considered as a promising technology for producing clean water through an abundant and pollution-free energy *** is a critical challenge to reasonably design the porous morphology and the thermal management of photothermal membranes for enabling efficient energy conversion and water *** this work,a Janus poly(vinylidene fluoride)membrane was fabricated in combination of penetrative pore structure,asymmetric surface wettability with proper thermal management for high-efficiency solar *** open and directly penetrative pores achieved by the two-dimensional solvent freezing strategy are considered to provide direct pathways for water and vapor *** unique feature of hydrophobic upper layer/hydrophilic lower layer enables the photothermal membranes to self-float on the water surface and rapidly pump water from the bulk to the *** resulting Janus membrane exhibits a satisfactory light absorbance as high as 97％and a photothermal conversion efficiency of 62.8％under one-sun irradiation in a direct contact *** solar-to-vapor efficiency rises up to 90.2％with the assistance of a thermal insulator adopted *** the Janus membrane and the composite setup are able to work efficiently with a high stability in seawater desalination,and the concentration of ion in condensed water is reduced to below 1 ***,Janus membranes with directly penetrative pores and photothermal surfaces shine a light on the development of high-performance solar evaporators for the practical application in solar seawater desalination.

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The Moonlighting Function of Glutaminase 2 Promotes Immune Evasion of Pancreatic Ductal Adenocarcinoma by Tubulin Tyrosine Ligase-like 1-Mediated Yes1 Associated Transcriptional Regulator Glutamylation

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Gastroenterology 2025年第6期168卷 1137-1152页

作者： Chen, Xiao Fu, Haotian Zhu, Shimao Xiang, Zheng Fu, Hong Sun, Zhongquan Zhang, Sitong Zheng, Xiaofeng Hu, Xun Chao, Ming Mao, Zhengwei Bi, Yanli Wang, Weilin Ding, Yuan Department of Hepatobiliary and Pancreatic Surgery The Second Affiliated Hospital Zhejiang University School of Medicine Zhejiang Hangzhou China Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province Zhejiang Hangzhou China Research Center of Diagnosis and Treatment Technology for Hepatocellular Carcinoma of Zhejiang Province Zhejiang Hangzhou China Center for Medical Research and Innovation in Digestive System Tumors Ministry of Education China Cancer Center Zhejiang University Zhejiang Hangzhou China ZJU-Pujian Research & Development Center of Medical Artificial Intelligence for Hepatobiliary and Pancreatic Disease Zhejiang Hangzhou China Department of Gastroenterology and Hepatology The First Affiliated Hospital of Wenzhou Medical University Wenzhou China Department of Pathology & Pathophysiology Department of Breast Surgery of the Second Affiliated Hospital Zhejiang University School of Medicine Zhejiang Hangzhou China Cancer Institute (Key Laboratory of Cancer Prevention and Intervention China National Ministry of Education) The Second Affiliated Hospital Zhejiang University School of Medicine Zhejiang Hangzhou China Interventional Radiology Department of Radiology The Second Affiliated Hospital Zhejiang University School of Medicine Zhejiang Hangzhou China MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Zhejiang Hangzhou China

Background & Aims: Elevated programmed cell death-ligand 1 (PD-L1) expression in tumor cells facilitates immune evasion. However, the mechanism via which PD-L1 expression is regulated in pancreatic ductal adenocarcinoma (PDAC) cells remains inadequately elucidated. Methods: Immunoprecipitation, pull-down assays, and mass spectrometry were used to identify glutaminase 2 (GLS2) and yes1 associated transcriptional regulator (YAP1) binding proteins and modification sites. Immunoblotting, immunofluorescence, chromatin immunoprecipitation, and luciferase reporter assays were used to analyze YAP1 activation. Protein expression levels were assessed using immunoblotting, immunoprecipitation, immunofluorescence, and immunohistochemistry. RNA expression levels were analyzed using real-time quantitative polymerase chain reaction. Results: Hypoxia-induced general control nondepressible 5 (GCN5)–mediated acetylation of GLS2 at K151, which enhanced GLS2 interaction with YAP1. Subsequently, tubulin tyrosine ligase-like 1 mediated YAP1 glutamylation at E100 and promoted its nuclear translocation and the activation-dependent transcriptional up-regulation of PD-L1 expression. The expression of GLS2-K151R or YAP1-E100A mutants in PDAC cells blocked hypoxia-induced PD-L1 expression and enhanced CD4⁺ and CD8⁺ T-cell activation and tumor infiltration, thereby suppressing PDAC tumor growth. Simultaneous administration of MB-3, a GCN5 inhibitor, and an anti–programmed cell death 1 (PD-1) antibody abolished tumor immune evasion, boosting the anti-tumor efficacy of immune checkpoint blockade. Furthermore, GLS2-K151 acetylation and YAP1 E100 glutamylation levels correlated positively with PD-L1 expression and poor prognosis in PDAC patients. Conclusions: The present study revealed a novel mechanism by which hypoxia up-regulates PD-L1 expression and highlighted the involvement of GLS2 in noncanonical metabolic pathways involved in tumor immune evasion, with implications fo

关键词： GLS2 Glutamylation PD-L1 YAP1

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New Strategy to Prepare Amorphous Nickel-Cobalt Hydroxides with High Areal Capacitance by One-Step Electrodeposition Process: Polymer as an Additive

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SSRN 2022年

作者： Hu, Wenxuan Fu, Huakang Chen, Lu Geng, Biao Wu, Xing Huang, Yanling Xu, Yifei Du, Miao Song, Yihu Wu, Ziliang Zheng, Qiang Shan, Guorong MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Hangzhou310027 China Zhejiang Hua Jiang Science & Technology Co. Ltd. Hangzhou311106 China State Key Laboratory of Chemical Engineering College of Chemical and Biological Engineering Zhejiang University Hangzhou310027 China

Nowadays, in order to gain high-performance supercapacitors with well-designed nanostructures, the preparation processes always possess sophisticated and time-consuming multiple steps. Here, we developed a facile and time-saving electrodeposition strategy to prepare amorphous nickel-cobalt hydroxides (NiCo-OHs) electrode with high areal specific capacitance by introducing polymers into the electrolyte. Polymer, with long chain, high solution viscosity and coordination effect, could induce a nondirectional growth of NiCo-OHs and form disordered structure with plentiful mesopores. After investigating the effects of polymers’ type and concentration on the growth process, amorphous NiCo-OHs with high mass loading were well anchored on the surface of carbon cloth. The amorphous phase and ample mesopores offer quantities of electrochemical active sites and high specific capacitance. The as-prepared amorphous NiCo-OHs electrode exhibits a highest areal capacitance of 9.0 F cm -2 at 2 mA cm -2 , good rate capability with an areal capacitance of 4.5 F cm -2 at 50 mA cm -2 and long cyclic life (63% retention, 10000 cycles). Moreover, the assembled asymmetric supercapacitor exhibits a maximum power density of 58.1 mW cm -2 at a 260 μWh cm -2 energy density. This work offers a new sight to build transition metal hydroxides-based high performance supercapacitor electrodes with a fast and facile preparation technology. © 2022, The Authors. All rights reserved.

关键词： Sodium alginate

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Preparation of Pva/Cnts Film with High Humidity-Sensitive Performance Based on Multimethod Integration

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SSRN 2023年

作者： Ni, Qingsheng Zhang, Dezhi Du, Miao Shan, Guorong Zheng, Qiang State Key Laboratory of Chemical Engineering College of Chemical and Biological Engineering Zhejiang University Hangzhou310027 China Institute of Zhejiang University-Quzhou Quzhou324000 China Hangzhou Applied Acoustics Research Institute Hangzhou310023 China MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Hangzhou310027 China Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering Taiyuan030000 China

PVA (polyvinyl alcohol) is a common water-soluble polymer with a large number of hydroxyl groups on the side chain, which makes it hydrophilic. In this paper, a humidity-sensitive PVA film with high stability and a short equilibrium time was prepared by multimethod integration, i.e., crosslinking, foaming, spin coating and hydroxylated carbon nanotubes (CNTs) addition. The effects of crosslinking structure, pore structure, spin coating speed and CNTs content ( ) on humidity-sensitive performance were investigated in detail. The crosslinking of PVA chains enhances the stability under cyclic test conditions. The addition of a foaming agent can generate a pore structure to increase the water vapor exchange efficiency of the film in contact with the external environment, which improves the humidity response and recovery performance. The spin coating speed significantly influences the pore structure and thickness of the prepared films. CNTs promote the adsorption of water molecules in air through their high specific surface area and facilitate the dissociation of water through hole carriers and hydroxyl groups, which reduces the resistance of PVA/CNTs films and enlarges their humidity response range. The content of CNTs has a significant impact on the humidity-sensitive performance of the film by changing the viscosity of the precursor solution. The matching of spin coating speed and determines the final foaming structure and film thickness. By integrating multiple methods, we obtained a polymer-based humidity-sensitive film with an optimal pore structure and film thickness and, accordingly, outstanding humidity-sensitive performances, i.e., high stability and short response and equilibrium time. © 2023, The Authors. All rights reserved.

关键词： Polyvinyl alcohols

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Printed aerogels: Chemistry, processing, and applications

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Chemical Society Reviews 2021年第6期50卷 3842-3888页

作者： Feng, Junzong Su, Bao-Lian Xia, Hesheng Zhao, Shanyu Gao, Chao Wang, Lukai Ogbeide, Osarenkhoe Feng, Jian Hasan, Tawfique Cambridge Graphene Centre University of Cambridge CambridgeCB3 0FA United Kingdom Science and Technology on Advanced Ceramic Fibers and Composites Laboratory National University of Defense Technology Changsha Hunan410073 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering Wuhan University of Technology Loushi Road 122 Wuhan430070 China Laboratory of Inorganic Materials Chemistry Department of Chemistry University of Namur 61 rue de Bruxelles NamurB-5000 Belgium State Key Laboratory of Polymer Materials Engineering Polymer Research Institute Sichuan University Chengdu610065 China Laboratory for Building Energy Materials and Components Swiss Federal Laboratories for Materials Science and Technology EmpaCH-8600 Cyprus MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University 38 Zheda Road Hangzhou310027 China

As an extraordinarily lightweight and porous functional nanomaterial family, aerogels have attracted considerable interest in academia and industry in recent decades. Despite the application scopes, the modest mechanical durability of aerogels makes their processing and operation challenging, in particular, for situations demanding intricate physical structures. "Bottom-up"additive manufacturing technology has the potential to address this drawback. Indeed, since the first report of 3D printed aerogels in 2015, a new interdisciplinary research area combining aerogel and printing technology has emerged to push the boundaries of structure and performance, further broadening their application scope. This review summarizes the state-of-the-art of printed aerogels and presents a comprehensive view of their developments in the past 5 years, and highlights the key near- and mid-term challenges. This journal is © The Royal Society of Chemistry.

关键词： Aerogels

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Synchronous synthesis and Separation of Hydrophobic Ionic Liquids Through Janus Membrane Reactors

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SSRN 2022年

作者： Wu, Qian Li, Hao-Nan Zhang, Wen-Ting Cao, Ye Weng, Rui-Bin Li, Yong-Jin Yang, Jing Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education Key Laboratory of Organosilicon Material Technology of Zhejiang Province College of Material Chemistry and Chemical Engineering Hangzhou Normal University No. 2318 Yuhangtang Rd. Hangzhou311121 China MOE Key Laboratory of Macromolecular Synthesis and Functionalization Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province Department of Polymer Science and Engineering Zhejiang University Hangzhou310027 China

Traditional synthesis and purification of ionic liquids (ILs) are usually isolated. The overall procedure consumes a large quantity of organic solvents and is limited to lab scale synthesis. Thus, a greener and large-scale preparation of ILs requires a simultaneous synthesis and separation without volatile organic solvents. Herein, we establish a framwork for synchronous synthesis and separation of hydrophobic ILs based on an environmentally benign membrane reactor system. A Janus hollow fiber membrane reactor (JHFMR) with a thin and charged inner surface and IL-philic outer surface is prepared by mussel-inspired co-deposition. The hydrophilic lumen surface supplies a reaction zone for anion metathesis, and the surface charge can destabilize the emulsified target ILs dispersed in water, followed by a unidirectional transmembrane delivery. Multiple JHFMRs are assembled to prepare a module for continnously preparing water-immiscible ILs in a cross-flow mode. The ILs yield can be enhanced by increasing the packing density, as high as 96% after 30 h. The residual water is limited to below 1.00 wt%, and the halogen impurity is negligible ( © 2022, The Authors. All rights reserved.

关键词： Ionic liquids

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Preparation of Pva/Cnts Film with High Humidity Sensitive Performance Based on Multi-Method Integration

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SSRN 2023年

作者： Du, Miao Ni, Qingsheng Zhang, Dezhi Shan, Guorong Zheng, Qiang State Key Laboratory of Chemical Engineering College of Chemical and Biological Engineering Zhejiang University Hangzhou310027 China Institute of Zhejiang University-Quzhou Quzhou324000 China China State Shipbuilding Corporation Limited 715th Research Institute Hangzhou310023 China MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Hangzhou310027 China Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering Taiyuan030000 China

In this paper, a humidity sensitive PVA film with high stability and short equilibrium time was prepared. The effects of crosslinking structure, pore structure, spin coating speed and CNTs content (φCNTs) on humidity sensitive performance were investigated. The crosslinking of PVA chains enhances the stability under cyclic test condition. Addition of foaming agent can generate pore structure to increase the water vapor exchange efficiency of the film in contact with the external environment which improves the humidity response and recovery performance. Spin coating speed influences significantly the pore structure and thickness of the films prepared. CNTs promote the adsorption of water molecules in air through their high specific surface area, and facilitate the dissociation of water through hole carriers and hydroxyl groups. And the spin coating speed and φCNTs determine the final foaming structure and film thickness. © 2023, The Authors. All rights reserved.

关键词： Pore structure

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