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Graphitic carbon nitride with different dimensionalities for energy and environmental applications

Nano Research 2020年第1期13卷 18-37页

作者： Qiang Hao Guohua Jia Wei Wei Ajayan Vinu Yuan Wang Hamidreza Arandiyan bing-Jie ni Centre for Technology in Water and Wastewater(CTWW) School of Civil and Environmental EngineeringUniversity of Technology Sydney(UTS)SydneyNSW2007Australia Curtin Institute of Functional Molecules and Interfaces School of Molecular and Life SciencesCurtin UniversityPerthWA6845Australia Global Innovative Centre for Advanced Nanomaterials(GICAN) School of EngineeringFaculty of Engineering and Built EnvironmentThe University of NewcastleCallaghanNSW2308Australia School of Chemistry Faculty of ScienceThe University of New South WalesSydneyNSW2052Australia Laboratory of Advanced Catalysis for Sustainability School of ChemistryThe University of SydneySydneyNSW2006Australia

As a metal-free semiconductor,graphitic carbon nitride(g-C3N4)has received extensive attention due to its high stability,nontoxicity,facile and low-cost synthesis,appropriate band gap in the visible spectral range and wide availability of *** dimensions of g-C3N4 can influence the regime of the confinement of electrons,and consequently,g-C3N4 with various dimensionalities shows different properties,making them available for many stimulating *** there are some reviews focusing on the synthesis strategy and applications of g-C3N4,there is still a lack of comprehensive review that systemically summarises the synthesis and application of different dimensions of g-C3N4,which can provide an important theoretical and practical basis for the development of g-C3N4 with different dimensionalities and maximises their potential in diverse *** reviewing the latest progress of g-C3N4 studies,we aim to summarise the preparation of g-C3N4 with different dimensionalities using various structural engineering strategies,discuss the fundamental bottlenecks of currently existing methods and their solution strategies,and explore their applications in energy and environmental ***,it also puts forward the views on the future research direction of these unique materials.

关键词： graphitic carbon nitride micro-nano structure energy functional materials environmental functional materials photocatalyst

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Role of the Hippocampus in Distinct Memory Traces: Timing of Match and Mismatch Enhancement Revealed by Intracranial Recording

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Neuroscience Bulletin 2017年第6期33卷 664-674页

作者： bing ni Ruijie Wu Tao Yu Hongwei Zhu Yongjie Li Zuxiang Liu Beijing Institute of Functional Neurosurgery Xuanwu Hospital Capital Medical University State Key Laboratory of Brain and Cognitive Science Institute of Biophysics The Innovation Center of Excellence on Brain Science Chinese Academy of Sciences

A previous functional magnetic resonance imaging study reported evidence for parallel memory traces in the hippocampus： a controlled match signal detecting matches to internally-generated goal states and an automatic mismatch signal identifying unpredicted perceptual novelty. However, the timing information in this process is unknown. In the current study, facilitated by the high spatial and temporal resolution of intracranial recording from human patients, we confirmed that the left posterior hippocampus played an important role in the goal match enhancement effect, in which combinations of object identity and location were involved. We also found that this effect happened within 520 ms to 735 ms after the probe onset, ＊150 ms later than the perceptual mismatch enhancement found bilaterally in both the anterior and posterior hippocampus. More specifically, the latency of the perceptual mismatch enhancement effect of the right hippocampus was positively correlated with the performance accuracy. These results suggested that the hippocampus is crucial in working memory if features binding with location are involved in the task and the goal match enhancement effect happens after perceptual mismatch enhancement, implying the dissociation of different components of working memory at the hippocampus. Moreover, single trial decoding results suggested that theintracranial field potential response in the right hippocampus can classify the match or switch task. This is consistent with the findings that the right hippocampal activity observed during the simulation of the future events may reflect the encoding of the simulation into memory.

关键词： Working memory ECoG Hippocampus

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Amorphous electrocatalysts for urea oxidation reaction

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Progress in Natural Science:Materials International 2024年第2期34卷 362-375页

作者： Fenghui Guo Dongle Cheng Qian Chen Hao Liu Zhiliang Wu ning Han bing-Jie ni Zhijie Chen School of Materials Science and Technology China University of Geosciences Shenzhen Academy of Metrology and Quality Inspection Centre for Technology in Water and Wastewater School of Civil and Environmental Engineering University of Technology Sydney College of Safety and Environmental Engineering Shandong University of Science and Technology Institute of Yellow River Delta Earth Surface Processes and Ecological Integrity Shandong University of Science and Technology Discipline of Chemical Engineering Western Australian School of Mines: Minerals Energy and Chemical Engineering Curtin University Department of Materials Engineering School of Civil and Environmental Engineering The University of New South Wales

Electrochemical urea oxidation reaction(UOR) is a promising alternative to oxygen evolution reaction(OER) for realizing energy-saving hydrogen production. Developing efficient electrocatalysts for UOR becomes a central challenge. Recently, amorphous materials have been extensively used as UOR catalysts because of their numerous defective sites and flexible electronic properties. In this review, recent advancements in the development of amorphous UOR electrocatalysts are analyzed. The UOR mechanism is discussed, and the design of amorphous catalysts is then analyzed. The main catalyst design strategies are illustrated, including nanostructure control,heteroatom doping, composition regulation, and heterostructure construction. Also, electrocatalysts' structureperformance correlation is interpreted. Perspectives in this field are proposed for guiding future studies on the development of high-performance amorphous catalysts towards energy sustainability.

关键词： Catalyst design Hydrogen energy Heterostructures Heteroatom doping Component regulation

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Design of earth-abundant amorphous transition metal-based catalysts for electrooxidation of small molecules:Advances and perspectives

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SusMat 2023年第3期3卷 290-319页

作者： Zhijie Chen ning Han Renji Zheng Zijie Ren Wei Wei bing-Jie ni Centre for Technology inWater and Wastewater School of Civil and Environmental EngineeringUniversity of Technology SydneyUltimoNew South WalesAustralia Department of Materials Engineering KU LeuvenLeuvenBelgium School of Minerals Processing and Bioengineering Central South UniversityChangshaHunanChina School of Resources and Environmental Engineering Wuhan University of TechnologyWuhanChina

Electrochemical oxidation of small molecules(e.g.,water,urea,methanol,hydrazine,and glycerol)has gained growing scientific interest in the fields of electrochemical energy conversion/storage and environmental *** cost-effective catalysts for the electrooxidation of small molecules(ESM)is thus crucial for improving reaction ***,earth-abundant amorphous transition metal(TM)-based nanomaterials have aroused souring interest owing to their earth-abundance,flexible structures,and excellent electrochemical *** of amorphous TM-based nanomaterials have been designed and used as promising ESM ***,recent advances in the design of amorphous TM-based ESM catalysts are comprehensively *** features(e.g.,large specific surface area,flexible electronic structure,and facile structure reconstruction)of amorphous TM-based ESM catalysts are first ***,the design of various TM-based catalysts with advanced strategies(e.g.,nanostructure design,component regulation,heteroatom doping,and heterostructure construction)is fully scrutinized,and the catalysts’structure-performance correlation is *** perspectives in the development of cost-effective amorphous TM-based catalysts are then *** review is expected to provide practical strategies for the design of next-generation amorphous electrocatalysts.

关键词： amorphous catalysts catalyst design electrocatalytic conversion electrochemical oxidation transition metals

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Recent advances in waste-derived functional materials for wastewater remediation

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Eco-Environment & Health 2022年第2期1卷 86-104页

作者： Zhijie Chen Wei Wei Hong Chen bing-Jie ni Center for Technology in Water and Wastewater School of Civil and Environmental EngineeringUniversity of Technology SydneyNSW2007Australia State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control Shenzhen Key Laboratory of Interfacial Science and Engineering of MaterialsSchool of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China

Water pollution is a major concern for public health and a sustainable *** is urgent to purify wastewater with effective methods to ensure a clean water *** wastewater remediation techniques rely heavily on functional materials,and cost-effective materials are thus highly *** great environmental and economic significance,developing waste-derived materials for wastewater remediation has undergone explosive growth ***,the applications of waste(e.g.,biowastes,electronic wastes,and industrial wastes)-derived materials for wastewater purification are comprehensively *** strategies for turning wastes into functional materials are firstly summarized,including pyrolysis and combustion,hydrothermal synthesis,sol–gel method,co-precipitation,and ball ***,critical experimental parameters within different design strategies are ***,recent applications of waste-derived functional materials in adsorption,photocatalytic degradation,electrochemical treatment,and advanced oxidation processes(AOPs)are *** mainly focus on the development of efficient functional materials via regulating the internal and external characteristics of waste-derived materials,and the material’s property-performance correlation is also ***,the key future perspectives in the field of waste-derived materials-driven water remediation are highlighted.

关键词： Wastewater remediation Solid wastes Waste-derived materials Adsorption Advanced oxidation processes Catalytic degradation

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Three-dimensional macroscale assembly of Pd nanoclusters

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Nano Research 2018年第6期11卷 3175-3181页

作者： Kai Wang Haifeng Lin bing ni Haoyi Li Muhammad Aurang Zeb Gul Sial Haozhou Yang Jing Zhuang Xun Wang Key Lab of Organic Optoelectronics and Molecular Engineering Department of Chemistry Tsinghua University Beijing 100084 China

Construction of macro-materials with highly oriented microstructures and well-connected interfaces between building blocks is significant for a variety of applications. However, it is still challenging to confine the desired structures. Thus, well-defined building blocks would be crucial to address this issue. Herein, we present a facile process based on 1.8 nm Pd nanoclusters （NCs） to achieve centimeter-size assemblages with aligned honeycomb structures, where the diameter of a single tubular moiety is -4 μm. Layered and disordered porous assemblages were also obtained by modulating the temperature in this system. The reconciled interactions between the NCs were crucial to the assemblages. As a comparison, 14 nm Pd nanoparticles formed only aggregates. This work highlights the approach of confining the size of the building blocks in order to better control the assembly process and improve the stability of the structures.

关键词： nanocluster macroscale assembly honey comb structure porous material

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Silent Large Shareholders and Entrenched Bank Management： Evidence from the Banking Crisis in Japan

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Chinese Business Review 2005年第1期4卷 64-68,81页

作者： bing ni Xi＇an Jiaotong University and is working for Guangdong Development Bank Shenzhen Branch518031

Since the beginning of the 1990s, Japanese banks have become saddled with huge amounts of non-performing loans and a significant number of them have failed. We investigate the cause of this banking crisis that has jeopardized the stability of the financial and economic system. Following Hanazaki （2001）, we argue that the deficiency of effective corporate governance of banks in Japan has caused inefficient management. Our focus here is the role of large shareholders who happen to be banks and insurers. We argue that these large shareholders appear to collude or conspire with management instead of being tough monitors. Consequently, the management became entrenched. Our empirical results show that during the 1980s these ＂entrenched banks＂ extended more lending. Even after the collapse of the bubble in the 1990s, they did not dramatically undertake restructuring to cope with the accumulated bad loans.

关键词： corporate governance ownership structure managerial entrenchmentshareholders activism

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Waste-Derived Catalysts for Water Electrolysis:Circular Economy-Driven Sustainable Green Hydrogen Energy

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Nano-Micro Letters 2023年第1期15卷 43-79页

作者： Zhijie Chen Sining Yun Lan Wu Jiaqi Zhang Xingdong Shi Wei Wei Yiwen Liu Renji Zheng ning Han bing-Jie ni Centre for Technology in Water and Wastewater(CTWW) School of Civil and Environmental EngineeringUniversity of Technology SydneyUltimoNSW 2007Australia Functional Materials Laboratory(FML) School of Materials Science and EngineeringXi’an University of Architecture and TechnologyXi’an 710055People’s Republic of China School of Minerals Processing and Bioengineering Central South UniversityChangsha 410083People’s Republic of China Department of Materials Engineering KU Leuven3001 LouvainBelgium

The sustainable production of green hydrogen via water electrolysis necessitates cost-effective *** following the circular economy principle,the utilization of waste-derived catalysts significantly promotes the sustainable development of green hydrogen ***,diverse waste-derived catalysts have exhibited excellent catalytic performance toward hydrogen evolution reaction(HER),oxygen evolution reaction(OER),and overall water electrolysis(OWE).Herein,we systematically examine recent achievements in waste-derived electrocatalysts for water *** general principles of water electrolysis and design principles of efficient electrocatalysts are discussed,followed by the illustration of current strategies for transforming wastes into ***,applications of waste-derived catalysts(i.e.,carbon-based catalysts,transitional metal-based catalysts,and carbon-based heterostructure catalysts)in HER,OER,and OWE are reviewed *** emphasis is put on correlating the catalysts’structure-performance ***,challenges and research directions in this booming field are finally *** review would provide useful insights into the design,synthesis,and applications of waste-derived electrocatalysts,and thus accelerate the development of the circular economy-driven green hydrogen energy scheme.

关键词： Waste-derived electrocatalysts Water splitting Sustainable hydrogen energy Catalyst design Circular economy

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A magic eggshell:Cu^(2+) reacts with S^(2-) to produce metal Cu,rather than CuS

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Chinese Science Bulletin 2010年第18期55卷 1851-1853页

作者： ZHANG WenLi WANG Zhao SHAO bing ni Liang QIU Lin QIU Shu School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 China

In common sense,the chemical reaction between Cu2+ and S2-ions produces black precipitation of ***,if they are separated by an eggshell,they produce copper with trace amount of CuS on the surface of the eggshell at the side of copper chloride solution within one *** an unexpected phenomenon strongly indicated that Cu2+ is able to be reduced into metal copper when S2-diffuses throughout the porous *** produced copper was verified by reacting with nitric acid to generate red-brown nitrogen dioxide at ambient temperature,as well as by the powder X-ray diffraction(XRD) and energy dispersive analysis of X-rays(EDS).

关键词：化学反应金属铜 CuS 蛋壳生产粉末X射线衍射二氧化氮色散分析

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Tungsten pnictides for water electrolysis:advances and perspectives

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Tungsten 2024年第4期6卷 675-695页

作者： Xue Kang Xi-Han Tan ning Han Jian-Feng Hou Chen-Min Yao Zhi-Jie Chen bing-Jie ni Department of Chemistry and Chemical Engineering Lyuliang UniversityLvliang033001China Department of Materials Engineering KU LeuvenLouvain3001Belgium State Key Laboratory of Oral&Maxillofacial Reconstruction and Regeneration Key Laboratory of Oral Biomedicine Ministry of EducationHubei Key Laboratory of StomatologySchool&Hospital of StomatologyWuhan UniversityWuhan430079China School of Civil and Environmental Engineering The University of New South WalesSydneyNSW 2052Australia

Hydrogen fuel is recognized as a promising energy carrier for the sustainable development of global energy system and the green hydrogen production via water electrolysis attracts great *** development of cost-effective electrocatalysts for water electrolysis is important for enhancing green hydrogen production ***,tungsten pnictides(phosphides and nitrides)have emerged as promising catalysts for water electrolysis,and efficient tungsten pnictide-based catalysts with different nanostructures,compositions,and surface chemical properties have been *** this review,recent progress in the design of tungsten pnictide-based electrocatalysts for water electrolysis is comprehensively *** synthesis of tungsten pnictide-based electrocatalysts are discussed ***,current achievements in developing efficient tungsten pnictide electrocatalysts for water electrolysis are detailed,and four key catalyst design strategies(i.e.,nanostructure control,heteroatom doping,defect engineering,and heterostructure design)are *** physicochemical properties-catalytic performance relationship of tungsten pnictide-based electrocatalysts is also *** last,perspectives in this field are put forward for guiding further research on the design and application of high-performance tungsten pnictide-based electrocatalysts.

关键词： Tungsten nitrides Tungsten phosphides Hydrogen evolution reaction Oxygen evolution reaction Electrocatalysts

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