维普中文期刊产品整合服务
79篇 您的检索式:作者名="Dingsheng Wang"
    题名 作者 年代 出处 被引量
1Metal organic frameworks derived single atom catalysts for electrocatalytic energy conversion显示文摘The development of efficient and cost-effective catalysts to catalyze a wide variety of electrochemical reactions is key to realize the large-scale applicati on of ren ewable and clean en ergy tech no logies.Owing to the maximum atom-utilization efficie ncy and unique electronic and geometric structures,single atom catalysts(SACs)have exhibited superior performance in various catalytic systems.Recently,assembled from the function alized orga nic lin kers and metal no des,metal-organic frameworks(MOFs)with ultrafi ne porosity have received treme ndous attention as precursors or self-sacrificing templates for preparing porous SACs.Here,the recent advances toward the synthesis strategies for using MOF precursors/templates to con struct SACs are systematically summarized with special emphasis on the types of central metal sites.The electrochemical applications of these recently emerged MOF-derived SACs for various energy-conversion processes,such as oxygen reduction/evolution reaction(ORR/OER),hydrogen evolution reaction(HER),and CO2 reduction reaction(CO2RR),are also discussed and reviewed.Fin ally,the curre nt challe nges and prospects regardi ng the developme nt of MOF-derived SACs are proposed.Tingting Sun Lianbin Xu Dingsheng Wang Yadong Li 2019Nano Research2019,12,9:63
2Modulating the local coordination environment of single-atom catalysts for enhanced catalytic performance显示文摘The local coordination environment of catalysts has been investigated ftor an extended period to obtain enhanced catalytic performance.Especially with the advancement of single-atom catalysts(SACs),research on the coordination environment has been advanced to the atomic level.The surrounding coordination atoms of central metal atoms play important roles in their catalytic activity,selectivity and stability.In recent years,remarkable improvements of the catalytic performance of SACs have been achieved by the tailoring of coordination atoms,coordination numbers and second-or higher-coordination shells,which provided new opportunities for the further development of SACs.In this review,the characterization of coordination environment,tailoring of the local coordination environment,and their related adjustable catalytic performance will be discussed.We hope this review will provide new insights on further research of SACs.Xinyuan Li Hongpan Rong Jiatao Zhang Dingsheng Wang Yadong Li 2020Nano Research2020,13,7:70
3Single-atom catalysis enables long-life, high-energy lithium-sulfur batteries显示文摘With high energy density and low material cost,lithium sulfur batteries(LSBs)emerge quite expeditiously as a fascinating energy storage system over the past decade.Broad applications of LSBs ranging from electric vehicles to stationary grid storage seem rather bright in recent literatures.However,there still exist many pressing challenges to be addressed because we do not yet fully understand and control the electrode-electrolyte interface chemistries during battery operation,such as polysulide shuttling and poor utilization of active sulfur.Single-atom catalysts(SACs)pave new possibilities of tackling the tough issues due to their decent applicability in the atomic-level identification of structure-activity relationships and reaction mechanism,as well as their structural tunability with atomic precision.This review comprehensively summarizes the very recent advances in utilization of highly active SACs for LSBs by stating and discussing the related publications,which involves catalyst synthesis routes,battery pertormance,catalytic mechanisms,optimization strategies,and promises to achieve long-lite,high-energy LSBs.We see that endeavors to employ SACs to modify sulfur cathode have allowed efficient polysulfide conversion and confinement,leading to the minimization of shuttle effect.Parallel efforts are being devoted to extending the scope of SACs to cell separator and lithium metal anode in order to unlock the full potential of LSBs.We also obtain mechanistic insights into battery chemistries and nature of SACs in their strong interactions with polysulfides through advanced in situ characterizations documented.Overall,acceleration in the development of LSBs by introducing SACs is noticeable,and this cutting edge needs more attentions to further promoting the design of better LSBs.Zechao Zhuang Qi Kang Dingsheng Wang Yadong Li 2020Nano Research2020,13,7:46
4Single-atom site catalysts for environmental catalysis显示文摘In recent decades,the environmental protection and long-term sustainability have become the focus of attention due to the increasing pollution generated by the intense industrialization.To overcome these issues,environmental catalysis has increasingly been used to solve the negative impact of pollutants emission on the global environment and human health.Supported platinum-metal-group(PGM)materials are commonly utilized as the state-of-the-art catalysts to eliminate gaseous pollutants but large quantities of PGMs are required.By comparison,single-atom site catalysts(SACs)have attracted much attention in catalysis owing to their 100%atom efficiency and unique catalytic performances towards various reactions.Over the past decade,we have witnessed burgeoning interests of SACs in heterogeneous catalysis.However,to the best of our knowledge,the systematic summary and analysis of SACs in catalytic elimination of environmental pollutants has not yet been reported.In this paper,we summarize and discuss the environmental catalysis applications of SACs.Particular focus was paid to automotive and stationary emission control,including model reaction(CO oxidation,NO reduction and hydrocarbon oxidation),overall reaction(three-way catalytic and diesel oxidation reaction),elimination of volatile organic compounds(formaldehyde,benzene,and toluene),and removal/decomposition of other pollutants(Hg0 and SO3).Perspectives related to further challenges,directions and design strategies of single-atom site catalysts in environmental catalysis were also provided.Ningqiang Zhang Chenliang Ye Han Yan Lingcong Li Hong He Dingsheng Wang Yadong Li 2020Nano Research2020,13,12:38
5Controlling N-doping type in carbon to boost single-atom site Cu catalyzed transfer hydrogenation of quinoline显示文摘Single-atom site(SA)catalysts on N-doped carbon(CN)materials exhibit prominent performance for their active sites being M-Nx.Due to the commonly random doping behaviors of N species in these CN,it is a tough issue to finely regulate their doping types and clarify their effect on the catalytic property of such catalysts.Herein,we report that the N-doping type in CN can be dominated as pyrrolic-N and pyridinic-N respectively through compounding with different metal oxides.It is found that the proportion of distinct doped N species in CN depends on the acidity and basicity of compounded metal oxide host.Owing to the coordination by pyrrolic-N,the SA Cu catalyst displays an enhanced activity(two-fold)for transfer hydrogenation of quinoline to access the valuable molecule tetrahydroquinoline with a good selectivity(99%)under mild conditions.The higher electron density of SA Cu species induced by the predominate pyrrolic-N coordination benefits the hydrogen transfer process and reduces the energy barrier of the hydrogenation pathway,which accounts for the improved catalytic effeciency.Jian Zhang Caiyan Zheng Maolin Zhang Yajun Qiu Qi Xu Weng-Chon Cheong Wenxing Chen Lirong Zheng Lin Gu Zhengpeng Hu Dingsheng Wang Yadong Li 2020Nano Research2020,13,11:29
6Nanocrystals:Solution-Based Synthesis and Applications as Nanocatalysts显示文摘Nanocrystals are emerging as key materials due to their novel shape-and size-dependent chemical and physical properties that differ drastically from their bulk counterparts.The main challenges in this field remain rationally controlled synthesis and large scale production.This article reviews recent progress in our laboratory related to solution-based synthesis of various nanostructures,including zero-dimensional(0-D)nanocrystals,1-D nanowires and nanorods,hollow structures,and superlattice materials.On the other hand,the essential goal for nanoresearchers is to achieve industrial applications of nanostructured materials.In the past decades,these fascinating materials have been widely used in many promising fields such as nanofabrication,nanodevices,nanobiology,and nanocatalysis.Herein,we focus on their applications as nanocatalysts and try to illustrate the main problems and future directions in this area based on our recent endeavors in catalytic applications of nanocrystals.Dingsheng Wang Ting Xie Yadong Li 2009Nano Research2009,2,1:28
7Design concept for electrocatalysts显示文摘Metal-based electrocatalysts with different sizes(single atoms,nanoclusters,and nanoparticles)show different catalytic behaviors for various electrocatalytic reactions.Regulating the coordination environment of active sites with precision to rationally design an efficient electrocatalyst is of great significance for boosting electrocatalytic reactions.This review summarizes the recent process of heterogeneous supported single atoms,nanoclusters,and nanoparticles catalysts in electrocatalytic reactions,respectively,and figures out the construct strategies and design concepts based on their strengths and weaknesses.Specifically,four key factors for enhancing electrocatalytic performance,including electronic structure,coordination environment,support property,and interfacial interactions are proposed to provide an overall comprehension to readers in this field.Finally,some insights into the current challenges and future opportunities of the heterogeneous supported electrocatalysts are provided.Yao Wang Xiaobo Zheng Dingsheng Wang 2022Nano Research2022,15,3:27
8Cobalt single atom site catalysts with ultrahigh metal loading for enhanced aerobic oxidation of ethylbenzene显示文摘The oxidation of hydrocarbons to produce high value-added compounds(ketones or alcohols)using oxygen in air as the only oxidant is an efficient synthetic strategy from both environmental and economic views.Herein,we successfully synthesized cobalt single atom site catalysts(Co SACs)with high metal loading of 23.58 wt.%supported on carbon nitride(CN),which showed excellent catalytic properties for oxidation of ethylbenzene in air.Moreover,Co SACs show a much higher turn-over frequency(19.6 h^(−1))than other reported non-noble catalysts under the same condition.Comparatively,the as-obtained nanosized or homogenous Co catalysts are inert to this reaction.Co SACs also exhibit high selectivity(97%)and stability(unchanged after five runs)in this reaction.DFT calculations reveal that Co SACs show a low energy barrier in the first elementary step and a high resistance to water,which result in the robust catalytic performance for this reaction.Yu Xiong Wenming Sun Yunhu Han Pingyu Xin Xusheng Zheng Wensheng Yan Juncai Dong Jian Zhang Dingsheng Wang Yadong Li 2021Nano Research2021,14,7:20
9Hydroformylation of alkenes over rhodium supported on the metal-organic framework ZlF-8显示文摘Chao Hou Guofeng Zhao Yongjun Ji Zhiqiang Niu Dingsheng Wang Yadong Li 2014Nano Research2014,7,9:18
10Porphyrin-like Fe-N4 sites with sulfur adjustment on hierarchical porous carbon for different rate-determining steps in oxygen reduction reaction显示文摘We developed a strategy based on coordination polymer to synthesize singleatom site Fe/N and S-codoped hierarchical porous carbon (Fe1/N,S-PC).The as-obtained Fe1/N,S-PC exhibited superior oxygen reduction reaction (ORR) performance with a half-wave potential (Ev2,0.904 V vs.RHE) that was better than that of commercial Pt/C (E1/2,0.86 V vs.RHE),single-atom site Fe/N-doped hierarchical porous carbon (Fe1/N-PC) without S-doped (E1/2,0.85 V vs.RHE),and many other nonprecious metal catalysts in alkaline medium.Moreover,the Fe1/N,S-PC revealed high methanol tolerance and firm stability.The excellent electrocatalytic activity of Fe1/N,S-PC is attributed to the synergistic effects from the atomically dispersed porphyrin-like Fe-N4 active sites,the heteroatom codoping (N and S),and the hierarchical porous structure in the carbon materials.The calculation based on density functional theory further indicates that the catalytic performance of Fe1/N,S-PC is better than that of Fe1/N-PC owing to the sulfur doping that yielded different rate-determining steps.Konglin Wu Xin Chen Shoujie Liu Yuan Pan Weng-Chon Cheong Wei Zhu Xing Cao Rongan Shen Wenxing Chen Jun LUO Wensheng Yan Lirong Zheng Zheng Chen Dingsheng Wang Qing Peng Chen Chen Yadong Li 2018Nano Research2018,11,12:18
11A fundamental comprehension and recent progress in advanced Pt‐based ORR nanocatalysts显示文摘Today,Pt/C catalysts are widely used in proton exchange membrane fuel cells(PEMFCs).The practical applications of PEMFCs still face many limitations in the preparation of advanced Pt‐based catalysts,including high cost,limited life‐time,and insufficient power density.A kinetically sluggish oxygen reduction reaction(ORR)is primarily responsible for these issues.The development of advanced Pt‐based catalysts is crucial for solving these pro-blems when the large‐scale application of PEMFCs is to be realized.Herein,we demonstrate the design principle of advanced Pt‐based catalysts with an emphasis on theoretical understandings to practical applications.Generally,three main strategies(including strain effect,electronic effect,and ensemble effect)that governing the initial activity of Pt‐based electrocatalysts are ela-borated in detail in this review.Recent advanced Pt‐based ORR catalysts are summarized and we present representative achievements to further reveal the relationship of excellent ORR performance based on theoretical mechanisms.Then we focus on the preparation standards of membrane electrode assembles and testing protocols in practice.Finally,we predict the remaining challenges and present our perspectives with regards to design strategies for improving ORR performance of Pt‐based catalysts in the future.Yao Wang Dingsheng Wang Yadong Li 2021SmartMat2021,2,1:14
12Understanding the structure–performance relationship of active sites at atomic scale显示文摘Metal-based atomically dispersed catalysts have attracted more attention because of their excellent catalytic performance and nearly 100%atom utilization.Therefore,it is very important to comprehensively and systematically understand the relationship between catalytic active sites and catalytic performance at atomic scale.Here,we discuss and summarize in detail the key and fundamental factors affecting the active site,and relate them to the catalytic performance.First,we describe the effectiveness of active site design by coordination effects.Then,the role of chemical bonds in the active sites in changing the reaction performance is discussed.In addition,for intermetallic compounds,we explore how the spacing of active atoms affects the catalytic behavior.Moreover,the importance of synergistic effect in catalyst design is further discussed.Finally,the key parameters affecting the catalytic performance at atomic scale are summarized,and the main challenges and development prospects of atomic catalysts in the future are put forward.Runze Li Dingsheng Wang 2022Nano Research2022,15,8:13
13Preparation of hexagonal ultrathin WO3 nano-ribbons and their electrochemical performance as an anode material in lithium ion batteries显示文摘多达几测微计的 subnanometer 厚度, 25 nm 宽度,和长度的六角形的 ultrathin WO 3nano 带子(HUWNR ) 被一个 solvothermal 方法准备。同样准备的 HUWNR 成长[001 ] 方向,和主要暴露的方面是(120 ) 水晶飞机。因为他们的唯一的结构, HUWNR 在锂离子电池作为阳极材料展出好电气化学的性能。这些唯一的材料可以在许多地里被使用,这被相信。Chao Lian Xiaoling Xiao Zheng Chen Yuxi Liu Enyue Zhao Dingsheng Wang Chen Chen Yadong Li 2016Nano Research2016,9,2:12
14Phase-transfer interface promoted corrosion from PtNi10 nanoctahedra to Pt4Ni nanoframes显示文摘向 PtNi 的腐蚀的一条新奇二阶段的途径 < 潜水艇 class= “ a-plus-plus ” > 10 nanoctahedra 被开发了。在这策略,在油可溶的 PtNi 的 Ni 的活跃部件 < 潜水艇 class= “ a-plus-plus ” > 居住在上面的甲苯阶段,受不了蚀刻并且是的 10 nanoctahedra 然后由 ethylenediaminetetraacetate (EDTA ) 与协作转了进一个更低的水的阶段。由于 EDTA 支持的阶段转移接口的存在,腐蚀反应在温和条件下面以加速的率继续了。明确地,八面的磅的结果的产品 < 潜水艇 class= “ a-plus-plus ” > 4 Ni nanoframes 成功地第一次被制作,并且 PtNi < 潜水艇 class= “ a-plus-plus ” > 4 当 EDTA-2Na 的剂量被减少时,多孔的 octahedra 能被获得。在这个二阶段的系统的系统的研究以后,合作腐蚀机制被建议说明八面的磅的形成<潜水艇class=“ a-plus-plus ”> 4 Ni nanoframes ,从许多种类包含贡献(即, O <潜水艇class=“ a-plus-plus ”> 2 , H <潜水艇class=“ a-plus-plus ”> 2 O , H <啜class=“ a-plus-plus ”>+, OAm ,和 EDTA <潜水艇class=“ a-plus-plus ”> 4 )。由于磅的迷人的三维的几何学<潜水艇class=“ a-plus-plus ”> 4 Ni nanoframes 和 PtNi <潜水艇class=“ a-plus-plus ”> 4 多孔的 octahedra ,两个在太古的 PtNi 上侵蚀的 nanocrystals 显示出优异活动<潜水艇class=“ a-plus-plus ”>为在硝基苯的碱的媒介和加氢的乙醇 electrooxidation 的 10 nanoctahedra 。Yu Wang Yueguang Chen Caiyun Nan Lingling Li Dingsheng Wang Qing Peng Yadong Li 2015Nano Research2015,8,1:10
15Porous bimetallic Pt-Fe nanocatalysts for highly efficient hydrogenation of acetone显示文摘多孔的 Pt-Fe 二金属的 nanocrystals 被综合了经由自己组装并且能有效地从丙酮便于 2-propanol 的合成。二金属的催化剂为一个连续过程有三维的隧道和多达 972 h 1 的表演周转频率(TOF ) 超过 50 h。初步的机械学的研究建议高反应与由二金属的 Pt-Fe 合金和 Fe 2 O 3x 。一基于模型系统理解真实催化行为和催化机制被显示了帮助制作改进 Pt/Fe 3 有为大规模工业应用有大潜力的增加的活动和一生的 O 4 催化剂。Yongjun Ji Yuen Wu Guofeng Zhao Dingsheng Wang Lei Liu Wei He Yadong Li 2015Nano Research2015,8,8:10
16Nanocrystalline Intermetallics and Alloys显示文摘Nanocrystalline intermetallics and alloys are novel materials with high surface areas which are potential low-cost and high-performance catalysts.Here,we report a general approach to the synthesis of a large variety of nanocrystalline intermetallics and alloys with controllable composition,size,and morphology:these include Au-,Pd-,Pt-,Ir-,Ru-,and Rh-based bi-or tri-metallic nanocrystals.We find that only those intermetallics and alloys whose effective electronegativity is larger than a critical value(1.93)can be prepared by co-reduction in our synthetic system.Our methodology provides a simple and convenient route to a variety of intermetallic and alloyed nanomaterials which are promising candidates for catalysts for reactions such as methanol oxidation,hydroformylation,the Suzuki reaction,cyclohexene hydroconversion,and the selective hydrogenation of acetylene.Dingsheng Wang Qing Peng Yadong Li 2010Nano Research2010,3,8:10
17Regulations of active moiety in single atom catalysts for electrochemical hydrogen evolution reaction显示文摘Hydrogen production from water splitting using renewable electric energy is an interesting topic towards the carbon neutral future.Single atom catalysts(SACs)have emerged as a new frontier in the field of catalysis such as hydrogen evolution reaction(HER),owing to their intriguing properties like high activity and excellent chemical selectivity.The catalytic active moiety is often comprised of a single metal atom and its neighboring environment from the supports.Recent published reviews about electricdriven HER tend to classify these SACs by the species of active center atom,nevertheless the influence of their neighboring coordinated atoms from the supports is somehow neglected.Thus we classify the SACs for HER through the type of supports,highlighting the electronic metal–support interaction and their coordination environment from support.Then,we put forward some structural designing strategies including regulating of the central atoms,coordination environments,and metal-support interactions.Finally,the current challenges and future research perspectives of SACs for HER are briefly proposed.Peng Zhu Xiang Xiong Dingsheng Wang 2022Nano Research2022,15,7:9
18Emerging low-nuclearity supported metal catalysts with atomic level precision for efficient heterogeneous catalysis显示文摘Supported atomically dispersed metal catalysts(ADMCs)have received enormous attention due to their high atom utilization efficiency,mass activity and excellent selectivity.Single-atom site catalysts(SACs)with monometal-center as the quintessential ADMCs have been extensively studied in the catalysis-related fields.Beyond SACs,novel atomically dispersed metal catalysts(NADMCs)with flexible active sites featuring two or more catalytically centers including dual-atom and triple-atom catalysts have drawn ever-increasing attention recently.Owing to the presence of multiple neighboring active sites,NADMCs could exhibit much higher activity and selectivity compared with SACs,especially in those complicated reactions with multi-step intermediates.This review comprehensively outlines the recent exciting advances on the NADMCs with emphasis on the deeper understanding of the synergistic interactions among multiple metal atoms and underlying structure-performance relationships.It starts with the systematical introduction of principal synthetic approaches for NADMCs highlighting the key issues of each fabrication method including the atomically precise control in the design of metal nuclearity,and then the state-of-the-art characterizations for identifying and monitoring the atomic structure of NADMCs are explored.Thereafter,the recent development of NADMCs in energy-related applications is systematically discussed.Finally,we provide some new insights into the remaining challenges and opportunities for the development of NADMCs.Xiaobo Zheng Beibei Li Qishun Wang Dingsheng Wang Yadong Li 2022Nano Research2022,15,9:9
19Hydrothermal Synthesis of Orthorhombic LiMnO_(2)Nano-Particles and LiMnO_(2)Nanorods and Comparison of their Electrochemical Performances显示文摘Orthorhombic LiMnO_(2)nanoparticles and LiMnO_(2)nanorods have been synthesized by hydrothermal methods.LiMnO_(2)nanoparticles were synthesized by simple one-step hydrothermal method.To obtain rod-like LiMnO_(2),γ-MnOOH nanorods were first synthesized and then the H+ions were completely replaced by Li+resulting in LiMnO_(2)nanorods.Their electrochemical performances were thoroughly investigated by galvanostatic tests.Although the LiMnO_(2)nanoparticles have smaller size than LiMnO_(2)nanorods,the latter exhibited higher discharge capacity and better cyclability.For example,the discharge capacities of LiMnO_(2)nanorods reached 200 mA·h/g over many cycles and remained above 180 mA·h/g after 30 cycles.However,the maximum capacity of LiMnO_(2)nanoparticles was only 170 mA·h/g and quickly decreased to 110 mA·h/g after 30 cycles.Nanorods with one-dimensional electronic pathways favor the transport of electrons along the length direction and accommodate volume changes resulting from charge/discharge processes.Thus the morphology of LiMnO_(2)may play an important role in electrochemical performance.Xiaoling Xiao Li Wang Dingsheng Wang Xiangming He Qing Peng Yadong Li 2009Nano Research2009,2,12:8
20Bi_(2)S_(3) Nanotubes:Facile Synthesis and Growth Mechanism显示文摘Synthesis of tubular nanomaterials has become a prolific area of investigation due to their wide range of applications.A facile solution-based method has been designed to fabricate uniform Bi_(2)S_(3)nanotubes with average size of 20 nm×160 nm using only bismuth nitrate(Bi(NO_(3))_(3)·5H_(2)O)and sulfur powder(S)as the reactants and octadecylamine(ODA)as the solvent.Powder X-ray diffraction(XRD),transmission electron microscopy(TEM),high-resolution TEM(HRTEM),and energy dispersive spectroscopy(EDX)experiments were employed to characterize the resulting Bi_(2)S_(3)nanotubes and the classic rolling mechanism was applied to explain their formation process.Dingsheng Wang Chenhui Hao Wen Zheng Xiaoling Ma Deren Chu Qing Peng Yadong Li 2009Nano Research2009,2,2:8
返回顶部 每页显示:
共4页 首页 上一页 第1页 下一页 末页 /4 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费