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Effective strategies to promote Z(S)-scheme photocatalytic water splitting

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Chinese Chemical Letters 2024年第3期35卷 27-39页

作者： Ye Yuan Junan Pan weinan yin Haoxuan Yu Fengshun Wang Weifeng Hu Longlu Wang Dafeng Yan College of Electronic and Optical Engineering&College of Flexible Electronics(Future Technology) Nanjing University of Posts&Telecommunications(NUPT)Nanjing 210023China College of Chemistry and Chemical Engineering Hubei UniversityWuhan 430062China

Artificial Z(S)-scheme photocatalytic water splitting systems have attracted extensive attention due to their advantages such as wide light absorption range,high charge separation efficiency and strong carrier redox ***,it is still challenging to design and prepare Z(S)-scheme photocatalysts with low-cost and highly stability for efficiently photocatalytic overall water splitting using solar *** review mainly introduces various strategies to improve the photocatalytic water splitting performance of Z(S)-scheme *** strategies mainly focus on enhancing or extending the range of light absorption,promoting charge separation,and enhancing surface redox reaction in Z(S)-scheme ***,the main challenges of Z(S)-scheme photocatalytic water splitting systems and their future development directions are pointed *** review would be beneficial to understanding the challenges and opportunities faced by the research field of Z(S)-scheme photocatalytic systems,and has important guiding significance for the development and utilization of high-performance Z(S)-scheme photocatalytic reaction system in the future.

关键词： Z(S)-scheme Overall water splitting Light absorption Charge separation Loading co-catalyst

Recent advances in photothermal effects for hydrogen evolution

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Chinese Chemical Letters 2024年第1期35卷 129-139页

作者： Pengcheng Fan Yuhao He Junan Pan Ning Sun Qiyu Zhang Chen Gu Kang Chen weinan yin Longlu Wang College of Electronic and Optical Engineering&College of Flexible Electronics(Future Technology) Nanjing University of Posts&Telecommunications(NUPT)Nanjing 210023China

Photothermal effect has been widely employed in the H2 evolution process at the advantage of using clean energy sources to produce another one of higher *** solar-to-heat conversion have various forms and heat can facilitate reactions in a variety of ***,summarizing the sources and destinations of heat is important for constructing hydrogen production systems of higher *** view mainly focuses on the recent state-of-art progress of hydrogen evolution reaction(HER)based on photothermal ***,we introduce the main pathways of photothermal conversions applied in H2 ***,the functions of the photothermal effect are clearly ***,we go beyond the catalytic reaction and introduce a method to improve the catalytic system by changing the catalytic bulk phase through thermal *** the end,we sort out the challenges and outlook to offer some noble insights for this promising area.

关键词： Photothermal effect H_(2)evolution reaction Photothermal catalysis Water vapor splitting Environmental restoration

Strategies to accelerate bubble detachment for efficient hydrogen evolution

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Chinese Chemical Letters 2024年第1期35卷 196-207页

作者： weinan yin Lexing Yuan Hao Huang Yuntao Cai Junan Pan Ning Sun Qiyu Zhang Qianhe Shu Chen Gu Zechao Zhuang Longlu Wang College of Electronic and Optical Engineering&College of Flexible Electronics(Future Technology) Nanjing University of Posts&Telecommunications(NJUPT)Nanjing 210023China Department of Chemistry Tsinghua UniversityBeijing 100084China

In the process of electrocatalytic water splitting, the management of gaseous products is an important task. Timely detachment of gaseous products from the electrode surface and the electrolyte is beneficial to the reduction of energy consumption of the electrolytic cell. In the existing industrial electrolytic cells, the circulating pump drives the electrolyte flowing to discharge the gaseous products. Up to now, several much more advanced strategies have been explored to deal with the negative effects of bubbles. In this review, we summarized various strategies for bubble detachment, including electrode design, external field imposing and system upgrading. We also elaborated the principle, functional features, practicability, advantages and limitations of each method. Finally, challenges and perspectives are also provided for the further development of advanced bubbles detachment strategies for efficient hydrogen evolution.

关键词： Bubble effect Electrocatalytic water splitting Electrode design External field System upgrade

External field assisted hydrogen evolution reaction

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Nano Research 2023年第7期16卷 8638-8654页

作者： Jingwen Li weinan yin Junan Pan yingbo Zhang Fengshun Wang Longlu Wang Qiang Zhao College of Electronic and Optical Engineering&College of Flexible Electronics(Future Technology) Nanjing University of Posts&Telecommunications(NJUPT)Nanjing 210023China

As a clean,efficient,and sustainable energy,hydrogen is expected to replace traditional fossil energy.A series of studies focusing on morphology regulation,surface modification,and structural reconstruction have been devoted to improving the intrinsic catalytic activity of non-noble metal ***,complex system structure design and the mutual interference of various chemical components would hinder the further improvement of hydrogen evolution *** recent years,external field assisted hydrogen evolution reaction(HER)has become a new research ***,we systematically summarize the promoting effects of various external fields on catalytic hydrogen production from the aspects of system design and catalytic mechanism,including electric field,thermal field,optical field,magnetic field,and acoustic ***,we discuss the key challenges facing this external field regulation strategy and put forward the prospect of future research *** sincerely expect that this review could not only provide a new insight into the basic mechanism of external-assisted catalysis,but also promote further research on improving HER performance from a more diverse and comprehensive perspective.

关键词： hydrogen evolution electric field thermal field optical field magnetic field acoustic field

Recent status and future perspectives of ZnIn_(2)S_(4) for energy conversion and environmental remediation

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Chinese Chemical Letters 2023年第7期34卷 45-57页

作者： Mengzhu Li Longlu Wang Xinyu Zhang weinan yin yingbo Zhang Jingwen Li Ziyang yin Yuntao Cai Shujuan Liu Qiang Zhao College of Electronic and Optical Engineering and College of Flexible Electronics(Future Technology).Nanjing University of Posts and Telecommunications(NUPT) Nanjing 210023China State Key Laboratory of Organic Electronics and Information Displays and Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials(IAM)Nanjing University of Posts and TelecommunicationsNanjing 210023China School of Geographic and Biologic Information Nanjing University of Posts and TelecommunicationsNanjing 210023China

Zinc indium sulfide (ZnIn_(2)S_(4)),a novel photocatalyst,has attracted considerable attention and been extensively studied over the past few years owing to its various advantages such as nontoxicity,structural stability,easy availability,suitable band gap and fascinating photocatalytic *** review mainly focuses on the recent state-of-art progress of ZnIn_(2)S_(4)-based ***,we briefly introduced preparation methods of ZnIn_(2)S_(4) with diverse morphological ***,considering the photocatalytic activity of pristine ZnIn_(2)S_(4) would be confined by rapid recombination of photo-generated electronhole pairs and limited light absorption range,different modulation strategies such as layer and size control,doping,vacancy engineering and hetero-nanostructures were expounded in ***,the applications of ZnIn_(2)S_(4) in various fields such as H_(2) production,CO_(2) reduction,value-added products synthesis,pollutant purification and N_(2) fixation are clearly *** the end,we sorted out the conclusions and outlook,aiming to provide some new insights for this fascinating material.

关键词： ZnIn_(2)S_(4) Photocatalysis Energy conversion Environmental remediation Hydrogen evolution

Revisited electrochemical gas evolution reactions from the perspective of gas bubbles

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Nano Research 2023年第4期16卷 4381-4398页

作者： weinan yin Yuntao Cai Lingbin Xie Hao Huang Enchi Zhu Junan Pan Jiaqi Bu Hao Chen Ye Yuan Zechao Zhuang Longlu Wang College of Electronic and Optical Engineering&College of Flexible Electronics(Future Technology) Nanjing University of Posts&Telecommunications(NJUPT)Nanjing 210023China Department of Chemistry Tsinghua UniversityBeijing 100084China State Key Laboratory of Organic Electronics and Information Displays&Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials(IAM)Nanjing University of Posts&TelecommunicationsNanjing 210023China

Electrochemical gas evolution reactions are common but essential in many electrochemical processes including water *** these processes,gas bubbles are constantly nucleating on reaction interfaces in electrolyte and consequently exert an impact on catalysts and the *** the past few decades,extensive studies have been conducted to characterize bubbles with emerging advanced technologies,manage behaviors of bubbles,and apply bubbles to various *** this review,we summarize representative discoveries as well as recent advancements in electrochemical gas evolution reactions from the perspective of gas ***,we end up this review with a profound outlook on future research topics from the combination of experiments and theoretical techniques,non-negligible bubble effects,gravity-free situation,and reactions under practical industrial conditions.

关键词： gas bubbles bubble characterization bubble management bubble applications

Recent status and advanced progress of tip effect induced by micro-nanostructure

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中国化学快报:英文版 2023年第8期34卷 102-113页

作者： Jingwen Li Junan Pan weinan yin Yuntao Cai Hao Huang Yuhao He Gu Gong Ye Yuan Chengpeng Fan Qingfeng Zhang Longlu Wang College of Electronic and Optical Engineering&College of Flexible Electronics(Future Technology) Nanjing University of Posts&Telecommunications(NJUPT)Nanjing 210023China School of Materials Science and Engineering Xiangtan UniversityXiangtan 411105China

The unique structural features represented by micro-nanoneedle tip structure reflect wonderful physical and chemical *** tip effect includes the concentration of energy such as electrons,photons and magnetism in the tip region,which has promising applications in the fields of energy conversion,water capture,environmental restoration and so *** this review,a comprehensive and systematic summary of the latest advances in the application of the tip effect in different fields is *** advanced Finite Difference Time Domain simulation,we further propose our understanding of the fundamental mechanism of the tip effect induced by ***,we need to forge the present study to further reveal the essential law of the tip effect from the perspective of theoretical *** review would provide a solid foundation for further development and application of the tip effect.

关键词： Tip effect Finite difference time domain simulation Energy conversion Water capture Environmental restoration

Flexible electronics based on one-dimensional inorganic semiconductor nanowires and two-dimensional transition metal dichalcogenides

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Chinese Chemical Letters 2023年第11期34卷 82-97页

作者： Kang Chen Junan Pan weinan yin Chiyu Ma Longlu Wang College of Electronic and Optical Engineering&College of Flexible Electronics(Future Technology) Nanjing University of Posts&Telecommunications(NUPT)Nanjing 210023China

Flexible electronics technology is considered as a revolutionary technology to unlock the bottleneck of traditional rigid electronics that prevalent for decades,thereby fueling the next-generation *** the past few decades,the research on flexible electronic devices based on organic materials has witnessed rapid development and substantial achievements,and inorganic semiconductors are also now beginning to shine in the field of flexible *** validated by the latest research,some of the inorganic semiconductors,particularly those at low dimension,unexpectedly exhibited excellent mechanical flexibility on top of superior electrical ***,we bring together a comprehensive analysis on the recently burgeoning low-dimension inorganic semiconductor materials in flexible electronics,including one-dimensional(1D)inorganic semiconductor nanowires(NWs)and two-dimensional(2D)transition metal dichalcogenides(TMDs).The fundamental electrical properties,optical properties,mechanical properties and strain engineering of materials,and their performance in flexible device applications are discussed in *** also propose current challenges and predict future development directions including material synthesis and device fabrication and integration.

关键词： Flexible electronics One-dimensional inorganic semiconductor nanowires Two-dimensional transition metal dichalcogenides Mechanical properties Flexible device applications

Neural recovery machine for Chinese dropped pronoun

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Frontiers of Computer Science 2019年第5期13卷 1023-1033页

作者： weinan ZHANG Ting LIU Qingyu yin Yu ZHANG Research Center for Social Computing and Information Retrieval School of Computer Science and Technology Harbin Institute of TechnologyHarbin 150001China

Dropped pronouns (DPs) are ubiquitous in pro-drop languages like Chinese, Japanese etc. Previous work mainly focused on painstakingly exploring the empirical features for DPs recovery. In this paper, we propose a neural recovery machine (NRM) to model and recover DPs in Chinese to avoid the non-trivial feature engineering process. The experimental results show that the proposed NRM significantly outperforms the state-of-the-art approaches on two heterogeneous datasets. Further experimental results of Chinese zero pronoun (ZP) resolution show that the performance of ZP resolution can also be improved by recovering the ZPs to DPs.

关键词： neural network Chinese dropped pronoun re-covery Chinese zero pronoun resolution