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Black phosphorus-based heterostructures for photocatalysis and photoelectrochemical water splitting

Journal of Energy Chemistry 2022年第4期31卷 745-779页

作者： Shutao Li yihe zhang Hongwei Huang Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes and School of Materials Science and Technology China University of GeosciencesBeijing 100083China

Semiconductor-based photocatalytic and photoelectrochemical(PEC) processes can convert solar energy into high-density chemical energy or for the treatment of environmental pollutants, which are ideal ways to deal with environmental and energy crises. The development of high-efficiency photocatalysts and photoelectrodes is the key to the in-depth development and practical application of the two *** phosphorus(BP) has excellent physicalcochemical properties such as adjustable band gap, high carrier mobility, large specific surface area and anisotropy, making it one of the most promising ***-based heterostructure can not only realize the effective separation of photogenerated carriers but also improve the stability of BP, and is widely used in photocatalytic and PEC reactions. In this review, we first introduce the crystal structure, band structure, anisotropy, and preparation of BP with different dimensions(bulk, zero-dimension and two-dimension). Then, according to the transfer path of the photogenerated carriers and the components, the BP-based heterostructures are divided into type I heterojunction, type II heterojunction, Z-scheme heterojunction, S-scheme heterojunction, BP/carbonbased material heterostructure, BP/metal heterostructure and multi-component *** are the diverse photocatalytic applications of BP-based heterostructure, such as water splitting and CO_(2)reduction, N_(2)fixation, pollutant degradation, photothermal and photodynamic ***, some concluding views and opinions are stated on the challenges and opportunities faced by the further development of BP-based heterostructures in photocatalysis and PEC water splitting.

关键词： Black phosphorus Heterostructure Photocatalysis Photoelectrochemical water splitting

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Smoothing of Fast Assembled Layer-by-layer Films by Adjusting Assembly Conditions

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Chemical Research in Chinese Universities 2015年第4期31卷 674-679页

作者： DUANYang AN Oi zhang Qian zhang yihe Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials School of Materials Science and Technology China University of Geosciences Beijing 100083 P. R. China

To prepare layer-by-layer（LbL） multilayers in time-efficient manners by the dipping method is highly ap- pealing. However, the fast LbL assembly produces multilayers with high surface roughness. In our attempt to smooth the surface morphologies of LbL multilayers obtained by fast assembly（5 s dipping）, we studied the influence of the assembly conditions on the surface morphologies. The study shows that by properly adjusting the assembly condi- tions, such as washing duration, water annealing period, and drying with nitrogen flow, LbL multilayers with en- hanced surface smoothness could be obtained through fast LbL assembly.

关键词： Layer-by-layer self-assembly Surface morphology Water annealing Nitrogen flow

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Layered photocatalytic nanomaterials for environmental applications

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Chinese Chemical Letters 2023年第3期34卷 24-38页

作者： Fang Chen yihe zhang Hongwei Huang Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral MaterialsSchool of Materials Science and TechnologyChina University of GeosciencesBeijing 100083China

The increasing pollution and human demand for a cleaner environment have made achieving the environmental sustainability a current research *** a “green” technology,semiconductor photocatalysis is of great significance to the environmental *** from the unique anisotropic crystal structure and electronic properties,layered photocatalytic nanomaterials show great potential for efficient photocatalytic environmental *** review comprehensively summarizes the recent progress on layered photocatalytic nanomaterials for oxidation or reduction of pollutants in water and air along with the basic understanding of related mechanisms and developments in this ***,the existing diversified layered photocatalysts are classified,and their different synthesis and modification strategies are discussed in detail to provide a comprehensive view of the material design that affects their photocatalytic ***,the extensive applications of the above-mentioned layered photocatalytic nanomaterials in environmental fields are systematically summarized,including photooxidation of water and air pollutants,and photoreduction of heavy metal pollutants,NO_(3)^(-),BrO_(3)^(-) and CO_(2).Finally,based on the current research achievements in layered photocatalysts for environmental remediation,the future development direction and challenges are proposed.

关键词： Layered photocatalytic nanomaterials Layered perovskite oxides Environmental applications Photocatalytic oxidation Photocatalytic reduction

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Amorphous red phosphorus anchored on carbon nanotubes as high performance electrodes for lithium ion batteries

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Nano Research 2018年第5期11卷 2733-2745页

作者： Li Sun Yu zhang Deyang zhang Jingang Liu yihe zhang Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials School of Materials Science and Technology China University of Geosciences Beijing 100083 China

Red phosphorus-carbon nanotube （P@CNT） composites were synthesized as anodes for advanced lithium ion batteries via a facile solution-based method at room temperature. In these composites, the entangled P@CNT nanostructure reduced the aggregation of both components and allowed their complete utilization in a synergetic manner. The highly conductive and porous CNT framework, along with the nanoscale red P particles intimately anchored on the CNT surface, conferred the composite with excellent ion/electron transport properties. Volume expansion within the red P particles was mitigated by their amorphous and nanoscale features, which can be well buffered by the soft CNTs, therefore maintaining an integrated electrode structure during cycling. When used as an anode in lithium ion batteries, the composite exhibited a reversible capacity of 960 mAh·g^-1 （based on the overall weight of the composite） after 120 cycles at 200 mA·g^-1. The composite also delivered excellent high-rate capability with capacities of 886, 847, and 784 mAh·g^-1 at current densities of 2,000, 4,000, and 10,000 mA·g^-1 respectively, which reveals its potential as a high performance anode for lithium ion batteries.

关键词： red phosphorus carbon nanotubes anode lithium ion battery

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Effects of low frequency external excitation on oil slug mobilization and flow in a water saturated capillary model

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Petroleum 2019年第4期5卷 375-381页

作者： Liming Dai yihe zhang Sino-Canada Research Center for Noise and Vibration Control at Xiamen University of Technology and the University of Regina China Industrial Systems Engineering University of ReginaReginaCanada

The present research is to experimentally study the joint effects of external pressure and vibratory excitations of low frequency on oil slug mobilization and flow in a capillary *** and after the oil slug mobilization,the flow phenomena and pressure drop variation across the model are *** distance travelled by the oil slug subjected to various external pressure and vibratory excitations are also *** experimental results obtained indicate that the external vibratory excitation acting on the model has positive effect on the flow and mobilization of the oil slug in the *** is found in the research,with the application of the excitation,the contact angle between the oil slug and tube-wall is changed;the maximum pressure required to mobilize the oil slug is reduced accordingly;and the oil slug travel distance is increased in comparing with that without external *** research contributes to the comprehension of improved liquid mobilization in porous media under the application of external *** finding of the research is significant for studying the two-phase liquid flow in porous media subjected to external excitations and provides insights for Enhanced Oil Recovery with waterflooding and vibratory stimulations.

关键词： Two-phase liquid motion Oil slug mobilization Vibratory excitation Liquid mobilization Porous media Capillary model Low frequency stimulation

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Applications and recent advances of rare earth in solid oxide fuel cells

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Journal of Rare Earths 2022年第11期40卷 1668-1681,I0001页

作者： Qi Wang Hui Fan Yanfei Xiao yihe zhang Bejing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes and School of Materials Science and Technology China University of Geosciences BeijingBejing100083China School of Metallurgy and Chemistry Engineering Jiangxi University of Science and TechnologyGanzhou 341000China

Solid oxide fuel cells(SOFCs)are an all-solid energy conversion device from the chemical energy of fuels to electric energy at intermediate and high *** to now,massive efforts have been made in developing different components of solid oxide fuel cells,including electrolyte,anode,cathode and interconnect *** earth elements play an indispensable role in different components of SOFCs which have been extensively studied in the recent *** this review,we concentrate upon the rare earth application and recent advances in SOFCs and related *** structure involves perovskites,Ruddlesden-Popper,fluorite,spinel,pyrochlore,apatite and so ***,the effects of rare earth based oxides as matrix or dopants in different components are also *** and properties of the materials are related to the element type,valence,coordination and ion *** article will provide a comprehensive research direction towards SOFCs components for their composition,structural design and mechanisms research.

关键词： Solid oxide fuel cells Rare earths Anode Electrolyte Cathode Interconnect materials

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Bimetallic NiCo2S4 Nanoneedles Anchored on Mesocarbon Microbeads as Advanced Electrodes for Asymmetric Supercapacitors

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Nano-Micro Letters 2019年第2期11卷 229-243页

作者： Yu zhang yihe zhang Yuanxing zhang Haochen Si Li Sun Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral MaterialsSchool of Materials Science and TechnologyChina University of Geosciences

Bimetallic Ni–Co sulfides are outstanding pseudocapacitive materials with high electrochemical activity and excellent energy storage performance as electrodes for high-performance *** this study,a novel urchin-like NiCo2S4@mesocarbon microbead(NCS@MCMB) composite with a core–shell structure was prepared by a facile two-step hydrothermal *** highly conductive MCMBs offered abundant adsorption sites for the growth of NCS nanoneedles,which allowed each nanoneedle to fully unfold without aggregation,resulting in improved NCS utilization and efficient electron/ion transferin the *** applied as an electrode material for supercapacitors,the composite exhibited a maximum specific capacitance of 936 Fg-1 at 1 Ag-1 and a capacitance retention of 94% after 3000 cycles at 5 Ag-1,because of the synergistic effect of MCMB and ***,we fabricated an asymmetric supercapacitor based on the NCS@MCMB composite,which exhibited enlarged voltage windows and could power a light-emitting diode device for several minutes,further demonstrating the exceptional electrochemical performance of the NCS@MCMB composite.

关键词： Bimetallic sulfides NiCo2S4 Nanoneedles Mesocarbon microbeads Asymmetric supercapacitor

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Highly cycle-stable VOPO_(4)-based cathodes for magnesium ion batteries:Insight into the role of interlayer engineering in batteries performance

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Nano Research 2024年第7期17卷 6127-6138页

作者： Jiahe zhang Jing Shang Xiaojun zhang Ke Wang yihe zhang Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid WastesNational Laboratory of Mineral MaterialsSchool of Materials Science and TechnologyChina University of Geosciences(Beijing)Beijing 100083China

It is the sluggish ion migration kinetics that seriously affects the practical performance of the magnesium ion *** though an electrode material design using rational interlayer engineering method could effectively solve this issue,the optimal interlayer distance remains ***,various VOPO_(4)-based electrodes with expanded interlayer spacing were fabricated and the relationship between interlayer structure and battery performance was *** analysis combined with computations unveils the existence of an optimal interlayer structure,as inadequate expansion failed to fully utilization of the material performance,while excessive expansion degraded the electrode *** them,the electrode with triethylene glycol(TEG)intercalation exhibited optimized performance,maintaining excellent cycling stability(191.3 mAh·g^(−1)after 800 cycles).Density functional theory(DFT)demonstrated the effectiveness and limitations to lowering the migration energy barrier by expanding the interlayer *** addition,systematic mechanism research revealed the Mg^(2+)storage process:The stepwise shuttling of Mg^(2+)along the directions that lie in(001)plane triggers two pairs of redox processes,namely V^(5+)/V^(4+)and V^(4+)/V^(3+).This study,regulation of layer spacing to achieve the best integrated performance of electrodes,could deepen the understanding of interlayer engineering and guide the design of advanced multivalent-ion batteries.

关键词： magnesium ion batteries layered electrodes interlayer engineering energy storage mechanisms high kinetics

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Achieving UV and visible-light photocatalytic activity enhancement of AgI/BiOIO3 heterostructure:Decomposition for diverse industrial contaminants and high mineralization ability

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Chinese Chemical Letters 2017年第12期28卷 2244-2250页

作者： Fang Chen Hongwei Huang yihe zhang Tierui zhang Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials School of Materials Science and Technology China University of Geosciences Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences

Heterostructure photocatalyst fabrication is of great significance for promoting the photoreactivity and solar-energy utilization efficiencies. In this work, AgI/BiOIOheterostructure photocatalysts are synthesized by a facile in-situ crystallization of AgI on BiOIO. The photocatalytic performance is first surveyed by decomposition of model dye methyl orange(MO) separately with illumination of UV light and visible-light(λ> 420 nm). It indicates that AgI/BiOIOshows highly improved photocatalytic activity regardless of the light source, which should be attributed to the matchable band energy levels between AgI and BiOIO, benefiting the efficient charge separation. Notably, AgI/BiOIOshows a universal photocatalytic activity for treating diverse antibiotics and phenols, including tetracycline hydrochloride,chlortetracycline hydrochloride, 2,4-dichlorophenol(2,4-DCP), phenol and bisphenol A(BPA), and the strong mineralization ability of AgI/BiOIOwas also demonstrated. Additionally, the different mechanisms under UV and visible light irradiation are investigated in detail. This work provides a new reference for design and manipulation of high-performance nonselective heterostructure photocatalyst for environmental purification.

关键词： Photocatalysis Heterostructure BiOIO3 AgI Antibiotics Phenols

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Phosphorus-doped Ni–Co sulfides connected by carbon nanotubes for flexible hybrid supercapacitor

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Frontiers of Chemical Science and Engineering 2023年第5期17卷 491-503页

作者： Shengwang Su Li Sun Feng Xie Jialong Qian yihe zhang Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid WastesNational Laboratory of Mineral MaterialsSchool of Materials Science and TechnologyChina University of GeosciencesBeijing 100083China

As promising electrode materials for supercapacitors,nickel-cobalt bimetallic sulfides render the advantages of abundant redox reactions and inherently high ***,in general,unsatisfactory performance of low specific capacity,low rate capability,and fast capacity loss exist in Ni–Co sulfide ***,we rationally regulate phosphorus-doped nickel–cobalt sulfides(P-NCS)to enhance the electrochemical performance by gas–solid ***,carbon nanotubes(CNTs)as conductive additives are added to improve the cycle stability and conductivity and form the composite P-NCS/C/*** to density functional theory,more electrons near the Fermi surface of P-NCS are demonstrated notionally than those of simple *** results manifest that P-NCS/C/CNT exhibits superior electrochemical performance,e.g.,high specific capacity(932.0 C·g^(-1)at 1 A·g^(-1)),remarkable rate capability(capacity retention ratio of 69.1%at 20 A·g^(-1)),and lower charge transfer *** importantly,the flexible hybrid asymmetric supercapacitor is assembled using P-NCS/C/CNT and activated carbon,which renders an energy density of 34.875 W·h∙kg^(-1)at a power density of 375 W∙kg^(-1).These results show that as-prepared P-NCS/C/CNT demonstrates incredible possibility as a battery-type electrode for high-performance supercapacitors.

关键词： cobalt nickel sulfide phosphorus-doping hybrid supercapacitor carbon nanotube density functional theory

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