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Improving hole transfer of boron nitride quantum dots modified PDI for efficient photodegradation

Frontiers of Chemical Science and Engineering 2023年第11期17卷 1718-1727页

作者： Shiqing Ma Chundong Peng Zeyu Jia Yanmei Feng Kai Chen Hao Ding Daimei Chen zhong-yong yuan 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 Material Sciences and TechnologyChina University of GeosciencesBeijing 100083China School of Materials Science and Engineering Nankai UniversityTianjin 300350China Collaborative Innovation Center of Atmospheric Environment and Equipment Technology Jiangsu Key Laboratory of Atmospheric Environment Monitoringand Pollution Control School of Environmental Science and EngineeringNanjing University of Information Science and TechnologyNanjing 210044China

In recent years,organic photocatalyst under visible-light absorption has shown significant potential for solving environmental ***,it is still a great challenge for constructing a highly active organic photocatalyst due to the low separation efficiency of photogenerated ***,an effective and robust photocatalyst perylene-3,4,9,10-tetracarboxylic diamide/boron nitride quantum dots(PDI/BNQDs),consisting of selfassemble PDI withπ–πstacking structure and BNQDs,has been constructed and researched under visible light *** PDI/BNQDs composite gradually increases organic pollutant photodegradation with the loading amount of *** 10 mL of BNQDs solution added(PDI/BNQDs-10),the organic pollutant photodegradation performance reaches a maximum,about 6.16 times higher with methylene blue and 1.68 times higher with ciprofloxacin than that of pure PDI *** enhancement is attributed to improved separation of photogenerated carriers from self-assembled PDI by BNQDs due to their preeminent ability to extract *** work is significant for the supplement of PDI supramolecular composite *** believe that this photocatalytic design is capable of expanding organic semiconductors’potential for their applications in photocatalysis.

关键词： PDI boron nitride quantum dots photocatalysis hole transfer

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Heteroatom-Induced Accelerated Kinetics on Nickel Selenide for Highly Efficient Hydrazine-Assisted Water Splitting and Zn-Hydrazine Battery

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Nano-Micro Letters 2023年第9期15卷 492-504页

作者： Hao-Yu Wang Lei Wang Jin-Tao Ren Wen-Wen Tian Ming-Lei Sun zhong-yong yuan School of Materials Science and Engineering Smart Sensing Interdisciplinary Science CenterNankai UniversityTianjin 300350People’s Republic of China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Nankai UniversityTianjin 300071People’s Republic of China

Hydrazine-assisted water electrolysis is a promising energy conversion technology for highly efficient hydrogen *** design of bifunctional electrocatalysts,which can simultaneously accelerate hydrogen evolution reaction(HER)/hydrazine oxidation reaction(HzOR)kinetics,is the key ***,we demonstrate the development of ultrathin P/Fe co-doped NiSe_(2) nanosheets supported on modified Ni foam(P/Fe-NiSe_(2)) synthesized through a facile electrodeposition process and subsequent heat *** on electrochemical measurements,characterizations,and density functional theory calculations,a favorable“2+2”reaction mechanism with a two-step HER process and a two-step HzOR step was fully proved and the specific effect of P doping on HzOR kinetics was investigated.P/Fe-NiSe_(2) thus yields an impressive electrocatalytic performance,delivering a high current density of 100 mA cm^(−2) with potentials of−168 and 200 mV for HER and HzOR,***,P/Fe-NiSe_(2) can work efficiently for hydrazine-assisted water electrolysis and Zn-Hydrazine(Zn-Hz)battery,making it promising for practical application.

关键词： Water electrolysis Hydrogen production Hydrazine oxidation Bifunctional electrocatalyst Heteroatom doping

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Engineering heterostructured Ni@Ni(OH)_(2) core-shell nanomaterials for synergistically enhanced water electrolysis

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Green Energy & Environment 2022年第5期7卷 1024-1032页

作者： Jun-Wei Zhang Xian-Wei Lv Tie-Zhen Ren Zheng Wang Teresa J.Bandosz zhong-yong yuan Hebei Provincial Key Laboratory of Green Chemical Technology&High Efficient Energy Saving School of Chemical Engineering and TechnologyHebei University of TechnologyTianjin300130China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) School of Materials Science and EngineeringNankai UniversityTianjin300350China State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering Ningxia UniversityYinchuan750021NingxiaChina Department of Chemistry and Biochemistry The City College of New YorkNY10031USA

Heterostructure engineering of electrocatalysts provides a fascinating platform to reasonably manipulate the physicochemical properties of nanomaterials and further improve their catalytic efficiency for water ***,it still remains a huge challenge to construct welldesigned core-shell heterostructured catalysts and identify the key role of components for synergistic ***,a melted polymeric salt tactics was innovatively developed to synthesize heterostructured Ni@Ni(OH)_(2) core-shell nanomaterials supported on porous carbon(named Ni@Ni(OH)_(2)/PC),wherein well-defined Ni(OH)_(2)-Ni heterostructure plays a pivotal role in improving electrocatalytic activity for water reduction and ***,the stable porous carbon support functions as a highway for continuous electron transfer between Ni and Ni(OH)_(2),and simultaneously enables the full exposure of accessible active *** fabricated Ni@Ni(OH)_(2)/PC exhibits outstanding bifunctional electrocatalytic performance for overall water splitting(η_(10)=1.55 V) with a good long-time *** work sheds new light on the design of engineering heterostructure of active bifunctional electrocatalysts for efficient energy conversion system.

关键词： stability synergistic splitting

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Synthesis of ZSM-35 Using Hexamethyleneimine as a Template

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Chinese Chemical Letters 1997年第9期8卷 833-836页

作者： zhong yong yuan Huai Bin ZHANG Jing zhong WANG He Xuan LI(Catalysis Laboratory, Department of Chemistry, Nankai University, Tianjin 300071) Catalysis Laboratory Department of Chemistry Nankai University Tianjin 300071 China

Zeolite ZSM-35 was synthesized using hexamethyleneimine as an organic template and its crystallographic structure was studied by X-ray diffraction and IR spectroscopy. Its adsorption property was also evaluated.

关键词： Synthesis of ZSM-35 Using Hexamethyleneimine as a Template

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Synergistically enhanced activity and stability of bifunctional nickel phosphide/sulfide heterointerface electrodes for direct alkaline seawater electrolysis

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Journal of Energy Chemistry 2022年第12期75卷 66-73,I0003页

作者： Hao-Yu Wang Jin-Tao Ren Lei Wang Ming-Lei Sun Hui-Min Yang Xian-Wei Lv zhong-yong yuan School of Materials Science and Engineering Nankai UniversityTianjin 300350China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Nankai UniversityTianjin 300071China

Direct electrolysis of seawater to generate hydrogen is an attractive but challenging renewable energy storage *** design of seawater electrolysis catalysts should integrate high activity for hydrogen evolution reaction(HER)/oxygen evolution reaction(OER)and enhanced physical/electrochemical stability in ***,we demonstrate the development of a Ni foam(NF)supported interfacial heterogeneous nickel phosphide/sulfide(Ni_(2)P/NiS_(2))microsphere electrocatalyst(NiPS/NF)through a facile electrodeposition and subsequent phosphorization/sulfuration *** NiS_(2)modification,a charge redistribution on the heterointerface is demonstrated and a more advantageous covalent nature of the Ni-P bond is obtained for more easily adsorption of H*and H_(2)*** NiPS/NF thus yields an impressive electrocatalytic performance in 1.0 M KOH,requiring small overpotentials of 169 and 320 mV for HER and OER to obtain a high current density of 100 m A cm^(-2),*** NiPS/NF can also work efficiently in alkaline seawater with negligible activity degradation,requiring overpotentials of only 188 and 344 mV for a current density of 100 m A cm^(-2)for HER and OER,respectively.A synergistically enhanced physical/electrochemical long-term stability NiPS/NF in saline water is also demonstrated.

关键词： Seawater electrolysis Hydrogen production Bifunctional electrocatalyst Heterostructure Anticorrosion

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“Charging”the cigarette butt:heteroatomic porous carbon nanosheets with edge-induced topological defects for enhanced oxygen evolution performance

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Frontiers of Chemical Science and Engineering 2023年第11期17卷 1755-1764页

作者： Qing-Hui Kong Xian-Wei Lv Jin-Tao Ren Hao-Yu Wang Xin-Lian Song Feng Xu zhong-yong yuan School of Materials Science and Engineering Smart Sensing Interdisciplinary Science CenterNankai UniversityTianjin 300350China Tianjin Workstation Technology Center of Shanghai Tobacco Group Co.Ltd.Tianjin 300163China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Nankai UniversityTianjin 300071China

Owing to the complexity of electron transfer pathways,the sluggish oxygen evolution reaction process is defined as the bottleneck for the practical application of Zn-air *** this effort,metal nanoparticles(Co,Ni,Fe,etc.)encapsulated within nitrogen-doped carbon materials with abundant edge sites were synthesized by one-step pyrolysis treatment using cigarette butts as raw materials,which can drastically accelerate the overall rate of oxygen evolution reaction by facilitating the adsorption of oxygenated intermediates by the edge-induced topological *** prepared catalyst of nitrogen-doped carbon porous nanosheets loaded with Co nanoparticles(Co@NC-500)exhibits enhanced catalytic activity toward oxygen evolution reaction,with a low overpotential of 350 mV at the current density of 10 mA·cm^(-2).Furthermore,the Zn-air battery assembled with Co@NC-500 catalyst demonstrates a desirable performance affording an open-circuit potential of 1.336 V and power density of 33.6 mW·cm^(-2),indicating considerable practical application potential.

关键词： oxygen evolution reaction porous carbon nanosheets Co nanoparticles edge-induced topological defects Zn-air batteries

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State-of-the-art catalysts for direct dehydrogenation of propane to propylene

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Chinese Journal of Catalysis 2019年第9期40卷 1233-1254页

作者： zhong-Pan Hu Dandan Yang Zheng Wang zhong-yong yuan Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Institute of New Catalytic Materials ScienceSchool of MaterialsScience and EngineeringNankai UniversityTianjin 300350China State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering College of Chemistry and Chemical EngineeringNingxiaUniversityYinchuan 750021NingxiaChina

With growing demand for propylene and increasing production of propane from shale gas,the technologies of propylene production,including direct dehydrogenation and oxidative dehydrogenation of propane,have drawn great attention in recent *** particular,direct dehydrogenation of propane to propylene is regarded as one of the most promising methods of propylene production because it is an on-purpose technique that exclusively yields propylene instead of a mixture of *** this critical review,we provide the current investigations on the heterogeneous catalysts(such as Pt,CrOx,VOx,GaOx-based catalysts,and nanocarbons)used in the direct dehydrogenation of propane to propylene.A detailed comparison and discussion of the active sites,catalytic mechanisms,influencing factors(such as the structures,dispersions,and reducibilities of the catalysts and promoters),and supports for different types of catalysts is ***,rational designs and preparation of high-performance catalysts for propane dehydrogenation are proposed and discussed.

关键词： Propane dehydrogenation Propylene Heterogeneous catalyst Active site Catalytic mechanism

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Facile synthesis of Mo2C nanoparticles on N-doped carbon nanotubes with enhanced electrocatalytic activity for hydrogen evolution and oxygen reduction reactions

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Journal of Energy Chemistry 2019年第11期28卷 68-77页

作者： Yue-Jun Song Jin-Tao Ren Gege yuan Yali Yao Xinying Liu zhong-yong yuan Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) National Institute for Advanced MaterialsSchool of Materials Science and EngineeringNankai UniversityTianjin 300350China Material and Process Synthesis College of ScienceEngineering and TechnologyUniversity of South AfricaJohannesburgSouth Africa

Developing low-cost and highly-efficient electrocatalysts for renewable energy conversion technologies has attracted even-increasing attention. Molybdenum carbide materials have recently emerged as a type of promising catalysts for electrocatalytic reactions due to the earth-abundance and Pt-resembled electrical properties. In this work, taking the advantage of the interaction between the basic groups of the Mo(VI)-melamine polymer and the acidic groups on the surface of the oxidized carbon nanotubes(CNTs), N-doped CNTs supported Mo2C nanoparticles(Mo2C/NCNT) are prepared, which exhibit outstanding electrocatalytic activity and durability for both the hydrogen evolution and oxygen reduction reactions. The impressive performance of Mo2C/NCNT can be attributed to the small size of Mo2C particles, the large exposure ratio of surface sites and the presence of N-doped CNTs. This work enlarges the multi-field applications of molybdenum carbide-base materials as promising non-precious metal electrocatalysts, which is of great significance for sustainable energy-related technologies.

关键词： N-doping Carbon nanotubes Molybdenum carbides Hydrogen evolution reaction Oxygen reduction reaction Electrocatalysis

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Interface engineering for boosting electrocatalytic performance of CoP-Co_(2)P polymorphs for all-pH hydrogen evolution reaction and alkaline overall water splitting

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Science China Materials 2022年第9期65卷 2433-2444页

作者： Lei Chen Jin-Tao Ren zhong-yong yuan Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) National Institute for Advanced MaterialsSchool of Materials Science and EngineeringNankai UniversityTianjin 300350China

Exploring cobalt phosphide catalysts with abundant active sites and outstanding intrinsic activity for active and robust hydrogen evolution reaction(HER)and oxygen evolution reaction(OER)is highly ***,by the fine-tuning thermal-reduction treatment of cobalt phosphonates with spherical shape,the novel carbon-wrapped CoP-Co_(2)P polymorphs are rationally *** unique hierarchical porous architecture and heterointerface of CoP-Co_(2)P not only increase active sites but also ensure intrinsic *** resultant catalyst exhibits significantly boosted HER activity in a wide pH range,for instance,a current density of 10 mA cm^(-2) at the overpotential of 81 mV in 0.5 mol L^(-1) H_(2)SO_(4),109 mV in 1.0 mol L^(-1) KOH,and 227 mV in 1.0 mol L^(-1) phosphate buffer saline,and remarkable OER activity(1.53 V@10 mA cm^(-2) in 1.0 mol L^(-1) KOH),associated with the impressive stability for each ***,serving as the bifunctional electrocatalysts in a two-electrode electrolyzer for overall water splitting,a low cell voltage of 1.60 V can deliver a current density of 10 mA cm^(-2) in 1.0 mol L^(-1) *** structural evolution process of the CoP-Co_(2)P catalyst during electrolysis is thoroughly *** work presents a new approach for designing and fabricating efficient and affordable metal phosphides for various electrochemical technologies.

关键词： cobalt phosphides polymorphs heterointerface hydrogen evolution oxygen evolution

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CeO_2修饰介孔TiO_2和ZrO_2负载金催化剂催化废气中CO和挥发性有机化合物降解(英文)

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催化学报 2015年第4期36卷 579-587页

作者： Vasko Idakiev Dimitar Dimitrov Tatyana Tabakova Krasimir Ivanov zhong-yong yuan Bao-Lian Su Institute of Catalysis Bulgarian Academy of Sciences 1113 Sofia Bulgaria Department of Chemistry Agricultural University 4000 Plovdiv Bulgaria Institute of New Catalytic Materials Science College of Chemistry Nankai University Tianjin 300071 China Laboratory of Inorganic Materials Chemistry University ofNamur (FUNDP) 61 rue de Bruxelles B5000 Namur Belgium

Mesoporous 氧化物 TiO 2 和 ZrO 2, 经由中立 C 13(EO)6–Zr(OC3 H 7)4 集会小径，和 deposition–precipitation (DP ) 准备的修改 ceria 的 TiO 2 和 ZrO 2, 方法，展示高表面区域和一致毛孔尺寸分布被用作对金催化剂的支持。支持的... 详细信息

Mesoporous 氧化物 TiO 2 和 ZrO 2, 经由中立 C 13(EO)6–Zr(OC3 H 7)4 集会小径，和 deposition–precipitation (DP ) 准备的修改 ceria 的 TiO 2 和 ZrO 2, 方法，展示高表面区域和一致毛孔尺寸分布被用作对金催化剂的支持。支持的金催化剂为空气污染物质的催化消退被估计，即，公司， CH 3 哦，并且(CH 3)2 O。金牌被一个 DP 方法在 mesoporous 氧化物上支持。支持和催化剂被粉末 X 光检查衍射，高分辨率的传播电子显微镜学， N 2 adsorption–desorption 分析，和规划温度的减小技术描绘。在象由 ceria 的结构、催化的性质的积极修正一样的 ceria 和 mesoporous ZrO 2 和 TiO 2 之间的 synergistic 相互作用的高度被观察。ceria 添加剂与 mesoporous 氧化物交往并且在支持的 reducibility 上导致强壮的效果。催化剂的催化行为被讨论决定修改在金 nanoparticles 和 ceria-mesoporous 氧化物支持之间的添加剂和可能的相互作用的 ceria 的角色。在修改 ceria 的 mesoporous ZrO 2 上支持的金催化剂显示了优异催化活动(在 10 °C 和 CH 3 在 60 °C 的 OH ) 。高催化的活动能被归因于支持的能力帮助氧空缺形成。研究显示修改 ceria 的 mesoporous 氧化物支持作为对基于黄金的催化剂的支持有潜力。

关键词：介孔二氧化钛改性添加剂二氧化铈金催化剂挥发性有机化合物氧化锆 CO 支撑

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