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Interfacial molecular anchor for ambient all-bladed perovskite solar modules

Joule 2025年第5期9卷

作者： Zhu, Xuejie Yu, Dongqi Zhou, Xin Wang, Nan Liu, Hong Liang, Zihui Wu, Congcong Wang, Kai Jin, Dayong Liu, Shengzhong Yang, Dong State Key Laboratory of Photoelectric Conversion and Utilization of Solar Energy Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Dalian116023 China School of Physics and Electronic Technology Liaoning Normal University Dalian116029 China Interdisciplinary Research Center for Biology and Chemistry Liaoning Normal University Liaoning Dalian116029 China Key Laboratory for the Green Preparation and Application of Functional Materials Hubei Key Laboratory of Polymer Materials School of Materials Science and Engineering Hubei University Wuhan430062 China National Local Joint Laboratory for Advanced Textile Processing and Clean Production Wuhan Textile University Wuhan430073 China Huanjiang Laboratory Zhejiang University Zhuji311800 China School of Mathematical and Physical Sciences Faculty of Science University of Technology Sydney SydneyNSW Australia Eastern Institute for Advanced Study Eastern Institute of Technology Ningbo China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing100049 China

Ambient blade coating of perovskite solar modules shows great potential for large-scale manufacture and commercialization. However, blade coating nanometer-thick buffer layers typically results in a nonuniform surface due to particle instability and aggregation, often leading to insufficient integration and destabilization of the crystallographic lattice in the overlying perovskite layer. Herein, we introduce a layer of "molecular glue" that can effectively anchor the solute that suspends the monodisperse SnO2 nanoparticles into a uniform thin film and adhere it to the top perovskite during the mechanical blading process. Leveraging this holistic nanoparticle-anchoring strategy, we have achieved a seamlessly bonded cathode heterojunction, resulting in a record efficiency of 26.11% for small cells and the highest efficiency so far of 22.76% (certified at 21.60%) for mini-modules. Importantly, these ambiently all-blade-coated devices exhibit an extended lifetime of approximately 1,500 h, as verified by ISOS-O testing, indicating great promise for commercialization. © 2025

关键词： Perovskite

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Temperature Field Distribution in Spark Plasma Sintering of BN

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Journal of Wuhan University of technology(materials Science) 2002年第2期17卷 19-21页

作者：王玉成 State Key Lab of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan China

This paper studies the temperature distribution of BN, an insulating material, sintered in the Spark Plasma Sintering ( SPS) system. The temperature distributions of BN at different heating rates were measured , which showed that seeking for an over high heating rate in SPS is not as desirable as controlling of a suitable heating rate in order to have a fast sintering with a uniform temperature distribution.

关键词： Spark Plasma Sintering ( SPS) temperature distribution BN heating rate

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Amelioration of Mechanical Properties of Rolled Mg-4.5Al-2.5Zn Alloy by Cryogenic Cycling Treatment

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Acta Metallurgica Sinica (English Letters) 2025年 1-17页

作者： Pang, Haoran Lu, Liwei Yang, Gongji Wang, Xiaojun Wang, Wen Zhang, Hua Wu, Yujuan Sanya Institute of Hunan University of Science and Technology Sanya572024 China National Key Laboratory of Precision Hot Processing of Metal Harbin Institute of Technology Harbin150001 China Hunan Rongtuo New Material Research Co. Ltd. Xiangtan411201 China School of Metallurgical Engineering National and Local Joint Engineering Research Center for Functional Materials Processing Xi’an University of Architecture and Technology Xi’an710055 China Institute for Advanced Studies in Precision Materials Yantai University Yantai264005 China National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Shanghai200240 China

In this study, cryogenic cycling treatment was used to process the hot-rolled Mg-4.5Al-2.5Zn alloy sheets to research the influence on mechanical properties and microstructure. Optical microscopy, electron back-scatter diffraction and transmission electron microscopy were applied to characterize the microstructures and analyze the mechanisms. The consequences indicate that the cryogenic cycling treatment has significantly influence on improving the mechanical properties. With the cycle of cryogenic cycling treatment increasing to 5 cycles, the sample processed by 3 cycles presents the highest ductility (~ 18.6%), while the 4-cycle one shows the highest strength (~ 311.8 MPa). The improvement can be attributed to fine grains, introduced high-density dislocation, 9.8%-fraction low-angle grain boundaries (LAGBs), the precipitation of Mg17Al12 phase and the texture with the intensity of 17.5. Although the average grain sizes of the samples processed by cryogenic cycling treatment have no obvious difference, internal stress variations induced by cryogenic cycling treatment significantly influence LAGBs, the basal texture evolution, and the prismatic slip, pyramidal slip and pyramidal slip activation. © The Author(s) 2025.

关键词： Microhardness

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Nanostructured bimetallic Zn/Co in N-doped carbon as an efficient catalyst for the alcohol dehydrogenation to carboxylic acids under solvent-free conditions

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Journal of materials Science & technology 2023年第30期161卷 111-122页

作者： Zhong-Hui Zheng Somboon Chaemchuen Jun-Fei Gu Jing Hang Wei Sang Ji-Chao Wang Ye Yuan Cheng Chen State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China

The catalytic alcohol dehydrogenation to carboxylic acids has been demonstrated as an atom-economic and environmental-friendly synthetic ***,the reported catalysts either require relatively complicated synthesis or exhibit high activity only in the presence of a ***,it is still in high demand to obtain catalysts that feature facile synthesis and perform well even without any ***,a series of nanostructured bimetallic Zn/Co species embedded in N-doped hierarchical porous carbon were fabricated in a facile and green *** significantly,the best-performing material(Zn/Co@NC-800)was identified as the first heterogeneous catalyst to enable this transformation under solvent-free ***,the as-prepared composites were comprehensively investigated to de-termine their structural and morphological properties,which rationalized the superiority of Zn/Co@NC-800 over the other synthesized *** studies signified that Co sites(both Co^(0)and Co^(2+))and N species(mainly pyridinic N)were probably involved in this process,functioning as the Lewis acid site and basic site,***,this study could provide a simple and sustainable method for carboxylic acid synthesis.

关键词： Heterogeneous catalysis Bimetallic ZIFs Pyrolysis Solvent-free Alcohol dehydrogenation Carboxylic acids

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Iron Fibers Arrays Prepared by Electrodepositing in Reverse Liquid Crystalline

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Journal of Wuhan University of technology(materials Science) 2006年第2期21卷 66-68页

作者：赵素玲官建国 State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 ChinaCenter for Material Research and Testing Wuhan University of Technology Wuhan 430070 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China

Ordered iron fiber arrays were electrodeposited on the surface of zinc foils using ＂FeSO4 solution-sodium caprylate-Decanol＂ 3-component reverse hexagonal liquid crystal as soft templates. The structure of the soft templates and the synthesized iron ,fibers were characterized by polarizing microscopy, X-ray diffraction （XRD）, scanning electron microscopy （SEM） and energy dispersive X-ray microanalysis etc. The experimental results shou that the synthesized iron fibers with a crystal phase grew up in the form of fiber clusters of about 200 nm along the direction perpendicular to the cathode surface. Each cluster was composed of several tens of fibers. The fibers had almost the same length of more than 10μm with a diameter of about 50 nm.

关键词： iron fibers arrays reverse hexagonal liquid crystal soft template electrodepositing

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A novel, green method for the preparation of biodegradable PLA membranes without pore-forming agent

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Journal of Water Process Engineering 2025年 74卷

作者： Cai, Jiayi Han, Zunbo Sun, Yinjie Chen, Haoran Li, Haoran Wang, Ruoxi Ji, Yanhong He, Benqiao State Key Laboratory of Separation Membranes and Membrane Processes School of Material Science and Engineering Tiangong University Tianjin 300387 China Cangzhou Institute of Tiangong University Cangzhou 061000 China Science and Technology on Advanced Functional Composite laboratory Aerospace Research Institute of Materials & Processing Technology Beijing 100076 China

Polylactic acid (PLA) membranes have attracted significant attention in separation technologies due to their biodegradable properties. This study proposes a novel and eco-friendly pore-forming strategy for fabricating PLA membranes by triggering the in situ reaction between CaCO₃ nanoparticles and citric acid during the phase inversion process. Unlike conventional methods requiring synthetic pore-forming additives, this approach leverages the sacrificial role of CaCO₃ and the reaction-generated CO₂ nanobubble to synergistically construct a porous structure. The overall porosity increases from 70.2 % (pristine PLA membrane, M0) to 85.6 % (membrane prepared from a 6 wt% CaCO₃-containing casting solution, M6), while pure water flux rises dramatically from 20.1 L·m⁻²·h⁻¹ to 218.3 L·m⁻²·h⁻¹, with bovine serum albumin rejection maintained at 96.8 %. Furthermore, the flux recovery rate improves from 53.2 % (M0) to 71.2 % (M6), demonstrating enhanced antifouling properties. This entirely green fabrication process, employing only natural CaCO₃ and citric acid, represents a significant advancement in sustainable membrane technology and provides a viable route for developing high-performance biodegradable separation membranes. © 2025 Elsevier Ltd

关键词： Biodegradable membrane CaCO3 nanoparticles Citric acid Polylactic acid

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Chloride ion battery:A new emerged electrochemical system for next-generation energy storage

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Journal of Energy Chemistry 2024年第1期88卷 154-168,I0004页

作者： Shulin Chen Lu Wu Yu Liu Peng Zhou Qinyou An Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070HubeiChina State Key Laboratory of Refractories and Metallurgy Institute of Advanced Materials and NanotechnologyWuhan University of Science and TechnologyWuhan 430081HubeiChina

In the scope of developing new electrochemical concepts to build batteries with high energy density,chloride ion batteries(CIBs)have emerged as a candidate for the next generation of novel electrochemical energy storage technologies,which show the potential in matching or even surpassing the current lithium metal batteries in terms of energy density,dendrite-free safety,and elimination of the dependence on the strained lithium and cobalt ***,the development of CIBs is still at the initial stage with unsatisfactory performance and several challenges have hindered them from reaching *** this review,we examine the current advances of CIBs by considering the electrode material design to the electrolyte,thus outlining the new opportunities of aqueous CIBs especially combined with desalination,chloride redox battery,*** respect to the developing road of lithium ion and fluoride ion batteries,the possibility of using solid-state chloride ion conductors to replace liquid electrolytes is tentatively *** beyond,perspectives and clear suggestions are concluded by highlighting the major obstacles and by prescribing specific research topics to inspire more efforts for CIBs in large-scale energy storage applications.

关键词： Chloride ion battery Anion shuttling Conversion reaction Chloride redox

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Consolidation and properties of tungsten carbide target with low cobalt content by hot-press sintering

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key Engineering materials 2007年 351卷 98-102页

作者： Shao, G.Q. Xiong, Z. Wang, T.G. Shi, X.L. Duan, X.L. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 China

Tungsten carbide (WC) targets with low cobalt (Co) content (0.1 - 0.2 wt.%) were prepared by hot-press sintering at 1700°C for 60 minutes in argon, from element starting powders of tungsten, cobalt and carbon. Results show that the as-fabricated targets yield relatively high relative density above 99% and high HRA above 92. WC with low Co content is formed easily than pure WC The hot-press sintering process, while element starting powders are used, is an in-situ reaction technique for accelerating the WC's diffusion rate to obtain a dense sintered body.

关键词： Tungsten carbide

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Approaching high oxygen evolution reaction performance by synergetic dual-ion leaching

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Nano Research 2024年第9期17卷 7975-7983页

作者： Hancheng Ma Yao Ding Jianqi Li Wei Peng Liqiang Mai School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

Self-reconstruction of catalysts during oxygen evolution reaction(OER)is crucial for the development of energy conversion ***,the relationship between the specific atomic structure of pre-catalysts and their electrocatalytic behavior after reconstruction via dual-ion leaching has not been extensively *** this work,we design a highly effective non-noble metal OER catalyst with heterointerface through continuous self-reconstruction of Co_(2)(OH)_(3)Cl@NiMoO_(4)as pre-catalyst by a straightforward dual-ion(***_(4)^(2-)and Cl^(-))***-situ Raman and in-situ Fourier transform infrared(FT-IR)spectroscopy have precisely identified the progressive phase transformation of the pre-catalyst during self-reconstruction,which results in a stable heterojunction of CoOOH and NiOOH(CoOOH@NiOOH).Further calculations based on density functional theory(DFT)of CoOOH@NiOOH evident that more electrons will be aggregated in the Fermi level of ***,Gibbs free energy(ΔG)for different OER steps of CoOOH@NiOOH exhibit lower energy costs of all intermediates,implying the well catalytic ***,the catalyst derived from dual-ion leaching displays outstanding OER performance,characterized by an overpotential of 275 mV at a current density of 10 mA·cm^(-2)and exceptional stability over 12 h *** work successfully paves a way of finding high-performance OER catalysts based on non-noble metal through dual-ion leaching during self-reconstruction.

关键词： dual-ion leaching oxygen evolution reaction chemical reconstruction NiMoO_(4) Co_(2)(OH)_(3)Cl

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Diffusion bonding of Ti-6Al-4V by pulse current heating and hot-pressing

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中国有色金属学会会刊：英文版 2006年第A03期16卷 1915-1919页

作者：何代华傅正义王为民 State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

Pulse current heating (PCH) was used to join Ti-6Al-4V alloy at two cases of with die and without die. Hot-pressing (HP) method was used to provide a comparison between the two methods. Microstructures near the contacting surfaces were observed in optical microscope. Temperature distribution was analyzed. After joining, the tensile properties of the samples were evaluated. Experimental results show that grains and phases grow transversely on contacting surfaces, which makes two parts into a whole with a certain of tensile strength. PCH joining is a different temperature joining method. The highest temperature is located at the interface. The comparison of tensile strengths of samples joined by the two methods indicates that joining temperature and holding time needed by PCH are lower and less than those needed for HP.

关键词：压焊金属处理脉冲技术合金温度分布

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