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arXiv 2024年

作者： Zhou, Mengting Liu, Hongxia Yan, Juntao Chen, Qingjun Chen, Rong Liu, Lei School of Chemistry and Environmental Engineering Wuhan Institute of Technology Wuhan430205 China Center for Computational Chemistry School of Chemistry and Chemical Engineering Wuhan Textile University Wuhan430200 China College of Chemistry and Environmental Engineering Wuhan Polytechnic University Wuhan430023 China Key Laboratory of Rare Earths Chinese Academy of Sciences Ganjiang Innovation Academy Chinese Academy of Sciences Ganzhou341000 China State Key Laboratory of New Textile Materials & Advanced Processing Technologies Wuhan Textile University 430200Wuhan China

Metallic bismuth is both non-toxic and cost-effective. Bi-based catalysts have demonstrated the ability to efficiently produce HCOOH through CO2RR while effectively inhibiting the HER. Although many experiments have been reported concerning its performance towards CO2 reduction, the impact its valence states and crystal faces on CO2RR selectivity (e.g. HCOOH versus CO) it still under debate. Here, we performed a comprehensive study via density functional theory, by including three typical valence states of Bi, such as 0 (Bi), +3 (Bi2O3) and +5 (Bi2O5), as well as their often-studied crystal facets. The results show that metallic Bi demonstrates a poor selectivity for HCOOH, but boasts a higher conversion rate for CO2. While Bi2O3 exhibits a good selectivity for HCOOH production, yet it displays a lower conversion rate for CO2. For Bi2O5, all studied surfaces show high energy barriers in both cases of HCOOH and CO production, and lower energy barriers for HER reactions, indicating that Bi at +5 valence state is not the good choice for 2e transfer reactions. Subsequently, we further examined the effects of oxygen contents on the selectivity of HCOOH and the conversion rate for CO2. Interestingly, we found that partial oxidization of Bi benefits both the selectivity and the conversion rate. With these observations, we suggest that a mixture of Bi (0) and Bi2O3 (+3) phases would be a better choice than single crystals for future experiments. © 2024, CC BY.

关键词： Bismuth compounds

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Nise Layer Enhanced the Efficiency of Hole-Conductor-Free MAPbI3 Perovskite Solar Cells

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SSRN 2024年

作者： Li, Yanyan Lu, Xiaohui Wu, Congcong Wang, Shiming Yang, Xiaojie Li, Yang Zhao, Li Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials Hubei Key Laboratory of Polymer Materials Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Hubei University Wuhan430062 China Key Laboratory of Textile Fiber and Products Ministry of Education Wuhan Textile University Wuhan430200 China School of Nuclear Technology and Chemistry & Biology Hubei Key Laboratory of Radiation Chemistry and Functional Materials Hubei University of Science and Technology Hubei Xianning437100 China State Key Laboratory of Biocatalysis and Enzyme Engineering School of Life Sciences Hubei University Wuhan430062 China Hubei University China

The development of perovskite solar cells (PSCs) is significantly influenced by non-radiative recombination caused by defects and energy losses at the interfaces. In this study, we employed NiSe to modify the interface between the electron transport layer and the perovskite layer. The introduction of the modified layer reduced the defect density in the devices, improved the quality of the perovskite film, effectively mitigated non-radiative recombination caused by defects, The conduction band of NiSe, located at -4.21 eV, is sandwiched between the energy levels of MAPbI3 (-3.92 eV) and electron transport layer (-4.5 eV), allowing for better alignment of energy levels between the layers. This facilitates efficient reduction of energy transfer barriers between these two layers. The research demonstrated that tin oxide modified with 0.4 mg·mL-1 NiSe achieved a remarkable power conversion efficiency of 14.85%, significantly higher than the unmodified devices (12.14%). The results provide a new approach for fabricating high-crystallinity and low-trap-density perovskite films. © 2024, The Authors. All rights reserved.

关键词： Nickel compounds

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In-situ neutron-transmutation for substitutional doping in 2D layered indium selenide based phototransistor

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eLight 2022年第1期2卷 112-120页

作者： Zhinan Guo Yonghong Zeng Fanxu Meng Hengze Qu Shengli Zhang Shipeng Hu Sidi Fan Haibo Zeng Rui Cao Paras N.Prasad Dianyuan Fan Han Zhang Institute of Microscale Optoelectronics International Collaborative Laboratory of 2D Materials for Optoelectronics Science and TechnologyCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China MIIT Key Laboratory of Advanced Display Materials and Devices College of Material Science and EngineeringNanjing University of Science and TechnologyNanjing 210094China Institute for Lasers Photonicsand Biophotonics and Department of ChemistryUniversity at BuffaloThe State University of New YorkBuffaloNY 14260USA

Neutron-transmutation doping(NTD)has been demonstrated for the first time in this work for substitutional introduction of tin(Sn)shallow donors into two-dimensional(2D)layered indium selenide(InSe)to manipulate electron transfer and charge carrier *** study including density functional theory,transient optical absorption,and FET devices have been carried out to reveal that the field effect electron mobility of the fabricated phototransistor is increased 100-fold due to the smaller electron effective mass and longer electron life time in the Sn-doped *** responsivity of the Sn-doped InSe based phototransistor is accordingly enhanced by about 50 times,being as high as 397 A/*** results show that NTD is a highly effective and controllable doping method,possessing good compatibility with the semiconductor manufacturing process,even after device fabrication,and can be carried out without introducing any contamination,which is radically different from traditional doping methods.

关键词： Neutron-transmutation doping Substitutional doping Two-dimensional materials Phototransistor

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Fatigue of Li metal anode in solid-state batteries

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Science (new York, N.Y.) 2025年第6744期388卷 311-316页

作者： Tengrui Wang Bo Chen Yijie Liu Zhenyou Song Zhongqiang Wang Yuwei Chen Qian Yu Jiayun Wen Yiming Dai Qi Kang Fei Pei Rong Xu Wei Luo Yunhui Huang Institute of New Energy for Vehicles School of Materials Science and Engineering Tongji University Shanghai China. School of Electrical Engineering Southwest Jiaotong University Chengdu China. State Key Laboratory of Material Processing and Die & Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Wuhan Hubei China. State Key Laboratory for Strength and Vibration of Mechanical Structures Department of Engineering Mechanics Xi'an Jiaotong University Xi'an China.

Solid-state lithium metal batteries (SSBs) are promising for electric vehicles because of their potential to provide high energy density and enhanced safety. However, these batteries face short-circuit challenges caused by uncontrolled lithium dendrite growth during cycling. Using operando scanning electron microscopy and phase-field simulations, we determined that failure of SSBs is closely linked to the fatigue of the lithium metal anode, which markedly contributes to interface degradation and dendrite growth in SSBs. This fatigue follows the Coffin-Manson equation in mechanics, indicating that it is an innate characteristic. Clarifying the essential role of fatigue provides a physical basis for understanding failures of SSBs and paves the way to extending their lifespan.

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Aligned fibrin/functionalized self-assembling peptide interpenetrating nanofiber hydrogel presenting multi-cues promotes peripheral nerve functional recovery

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Bioactive materials 2022年第2期7卷 529-544页

作者： Shuhui Yang Jinjin Zhu Changfeng Lu Yi Chai Zheng Cao Jiaju Lu Zhe Zhang He Zhao Yin-Yuan Huang Shenglian Yao Xiangdong Kong Peixun Zhang Xiumei Wang State Key Laboratory of New Ceramics and Fine Processing Key Laboratory of Advanced Materials of Ministry of EducationSchool of Materials Science and EngineeringTsinghua UniversityBeijing100084PR China Key Laboratory of Trauma and Neural Regeneration Peking UniversityMinistry of EducationDepartment of Trauma and OrthopedicsPeking University People’s HospitalBeijing100044PR China Department of Orthopaedic Surgery Sir Run Run Shaw HospitalZhejiang University School of Medicine&Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of ZhejiangHangzhou310016PR China School of Clinical Medicine Tsinghua UniversityBeijing100084PR China School of Materials Science and Engineering University of Science and Technology BeijingBeijing100083PR China School of Materials Science and Engineering Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue EngineeringZhejiang Sci-Tech UniversityHangzhou310018PR China

Nerve guidance conduits with hollow lumen fail to regenerate critical-sized peripheral nerve defects(15 mm in rats and 25 mm in humans),which can be improved by a beneficial intraluminal ***,individual cues provided by intraluminal filling materials are inadequate to eliminate the functional gap between regenerated nerves and normal ***,an aligned fibrin/functionalized self-assembling peptide(AFG/fSAP)interpenetrating nanofiber hydrogel that exerting synergistic topographical and biochemical cues for peripheral nerve regeneration is constructed via electrospinning and molecular *** hydrogel possesses an aligned structure,high water content,appropriate mechanical properties and suitable biodegradation capabilities for nerve repair,which enhances the alignment and neurotrophin secretion of primary Schwann cells(SCs)in vitro,and successfully bridges a 15-mm sciatic nerve gap in rats in *** rats transplanted with the AFG/fSAP hydrogel exhibit satisfactory morphological and functional recovery in myelinated nerve fibers and innervated *** motor function recovery facilitated by the AFG/fSAP hydrogel is comparable with that of ***,the AFG/fSAP hydrogel upregulates the regeneration-associated gene expression and activates the PI3K/Akt and MAPK signaling pathways in the regenerated ***,the AFG/fSAP hydrogel represents a promising approach for peripheral nerve repair through an integration of structural guidance and biochemical stimulation.

关键词： Peripheral nerve regeneration Alignment Nanofibers Fibrin Self-assembling peptides

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Efficient Promotion of Cr(Vi) Removal Over Bi2s3 Nanostructure Assisted with Cupric Ions: Potential Applications in Electroplating Wastewater and Contaminated Groundwater

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SSRN 2022年

作者： Tao, Xiong Chen, Fengxi Li, Jun Liu, Yun-Ling Hu, Xiaowu Chen, Rong State Key Laboratory of New Textile Materials & Advanced Processing Technologies Wuhan Textile University Wuhan430200 China School of Chemistry and Environmental Engineering Wuhan Institute of Technology Wuhan430205 China Henan Institute of Advanced Technology Zhengzhou University Zhengzhou450002 China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University Jilin130012 China

Emerging Bi2S3 -based nanotechnology has great potential in Cr(VI)-contaminated wastewater treatment. In this work, it was found for the first time that Bi2S3 nanostructure (BS-D) prepared from dual sulfur sources of L-cysteine and ammonium sulfide efficiently promoted Cr(VI) removal with excellent selectivity for simultaneous removal of Cr(VI) and Cu2+ from aqueous solutions containing various co-existing ions (including Na+, K+, Ca2+, Zn2+, Ni2+, Cd2+, NO3-, SO42- and Cl- ) at pH > 3, preferably at pH = 4.5. Besides, BS-D exhibited stable performance for the co-removal of Cr(VI) and Cu2+ in five recycling tests. Kinetic and thermodynamic studies indicated that the adsorption of Cr(VI) or Cu2+ by BS-D was a spontaneous endothermic process and conformed to pseudo-second-order kinetic model. The adsorbed Cr(VI) ions were partially reduced to Cr(III), which were leached into the solution at pH ≤ 3, inhibiting the adsorption of Cu2+ on BS-D and its promotional effect on Cr(VI) removal by BS-D. The mutual promotional effects of Cu2+ and Cr(VI) could be attributed to electrostatic attraction between HCrO4- and Cu2+ and smaller pH variation of Cr(VI)-Cu2+ mixed solution during their co-removal by BS-D. Finally, potential applications of BS-D were demonstrated by co-removal of Cr(VI) and Cu2+ from two real water matrixes (electroplating wastewater and contaminated groundwater). This work provided a promising BS-D adsorbent for Cr(VI)-contaminated wastewater treatment, and shed insight on the influence of Cu2+ on the Cr(VI) removal by BS-D. © 2022, The Authors. All rights reserved.

关键词： Adsorption

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How do we improve the reproducibility and accuracy of EIS and Tafel testing in corrosion science?

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Surface Science and technology 2025年第1期3卷 1-22页

作者： Shao, Zexi Ma, Mingyuan Liu, Xuhui Yuan, Sicheng Lin, Dan Bai, Ziheng Hu, Haodong Yu, Jingtai Du, Yafei Zhu, Yanji Wang, Huaiyuan School of Chemical Engineering and Technology and State Key Laboratory for Chemical Engineering Tianjin University Tianjin P.R. China Tianjin Key Laboratory of Chemical Process Safety and Equipment Technology Tianjin University Tianjin P.R. China School of Materials Science and Engineering Northeastern University Shenyang China School of Materials and New Energy Ningxia University Yinchuan P.R. China Institute for Advanced Materials and Technology National Materials Corrosion and Protection Scientific Data Center University of Science and Technology Beijing Beijing China

Electrochemical is crucial in corrosion, energy storage, and electrocatalysts and are essential for mitigating carbon emissions. However, deviations in electrochemical testing can result from experiment errors and electrode preparation differences. Therefore, electrochemical experiment results are required to assess the reproducibility. Herein we found that the surface resistance is a key factor of electrochemical testing, and the difference of surface resistance could inform future anode oxidation devices, and enhance the reproducibility and accuracy of electrochemical testing.

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Microwave-assisted acid-induced formation of linker vacancies within Zr-based metal organic frameworks with enhanced heterogeneous catalysis

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Chinese Chemical Letters 2021年第2期32卷 787-790页

作者： Yu Liang Chenhui Li Lanjun Chen Jia Huo Mohammed Loubidi Yangyang Zhou Yanbo Liu State Key Laboratory of Chem/Bio-sensing and Chemometrics College of Chemistry and Chemical Engineering.Hunan UniversityChangsha 410082China Hunan Provincial Key Laboratory of Advanced Materials for New Energy Storage and Conversion.Hunan University of Science and Technology Xiangtan 411201China

Herein,we report a microwave-assisted acid-induced post-treatment method for the formation of linker vacancies within Zr-based metal organic frameworks(Zr-MOFs).The number of linker vacancies can be easily regulated with this method by changing the concentration of the HCl solution and the duration of microwave *** optimized defective UiO-66 showed higher linker defects with a higher specific surface area and thermal *** results of the catalytic cyclization of citronella showed that the Zr-MOFs with more defects exhibited enhanced catalytic *** work may provide a new method for the creation of defective MOFs with high activity and stability.

关键词： Metal-organic frameworks Microwave Acid etching Linker vacancy Stability Heterogeneous catalysis

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一步秒级制备超薄多孔Janus膜及其在防水透气电子皮肤的应用（英文）

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Science Bulletin 2025年第5期 712-721页

作者：倪宇峰李兵储成臻王少凡贾宇杰曹诗春 Rasoul Esmaeely Neisiany 何创龙陈硕游正伟 State Key Laboratory of Advanced Fiber Materials Institute of Functional Materials College of Materials Science and Engineering Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society) Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine Shanghai Key Laboratory of Lightweight Composite Donghua University College of Biological Science and Medical Engineering Donghua University Department of Materials and Polymer Engineering Faculty of Engineering Hakim Sabzevari University Biotechnology Centre Silesian University of Technology

It remains a challenge for a simple and scalable method to fabricate ultrathin porous Janus membranes for stretchable on-skin ***,we propose a one-step droplet spreading phase separation strategy to prepare an ultrathin and easily collected Janus thermoplastic polyurethane （TPU） membrane within *** metal-ion solvation structure mitigated migration kinetics to delay TPU solution demixing,promoting the further penetration of the coagulating ***,the developed membranes,with an average preparation rate of 25.2 cm2s-1,had a thickness of 5μm,and the water vapor transmission rate was determined to be 663 *** small pore layer having an average pore size of 1.7μm effectively blocked external liquid *** porous Janus TPU membrane coated by liquid metal served as a building block to develop a new generation of monolithic stretchable electronics with simultaneous high permeability and waterproofness.

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pH-responsive nanofiltration membrane with color monitoring for efficient Mg2+/Li+ separation

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Journal of Membrane Science 2025年 729卷

作者： Lin, Yushuang Li, Nan Xue, Weihao Chen, Hong Zhang, Zhiruo Dai, Zhao School of Textile Science and Engineering Tiangong University Tianjin300387 China School of Chemistry Tiangong University Tianjin300387 China School of Chemical Engineering and Technology Tiangong University Tianjin300387 China State Key Laboratory of Advanced Separation Membrane Materials Tianjin300387 China

Achieving precise pore size tuning in nanofiltration membranes for Mg2+/Li+ separation remains challenging due to the similar hydrated radii of the ions and the lack of real-time monitoring for dynamic adjustments. In this study, we developed a novel pH-responsive color-changing nanofiltration membrane with tunable pore sizes, enabling real-time monitoring and enhanced separation efficiency. By incorporating γ-cyclodextrin during interfacial polymerization, we achieved angstrom-level pore size tuning and reduced pH sensitivity. The color response of the membrane enables dynamic adjustments to the feed solution pH, optimizing pore radii to ∼0.41 nm, leading to a separation factor of 35.5. Molecular dynamics simulations and weight cut-off experiments confirmed that γ-cyclodextrin enhanced pore uniformity, resulting in a denser, more efficient membrane. This innovative approach offers a flexible and precise solution for Mg2+/Li+ separation, demonstrating high permeance (15.5 L m−2 h−1 bar−1) and potential for applications in seawater desalination, resource recovery, and industrial ion separation. © 2025

关键词： Nanofiltration

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