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10篇 您的检索式:作者名="Tongfei Shi"
    题名 作者 年代 出处 被引量
1Synergistic catalysis of cluster and atomic copper induced by copper-silica interface in transfer-hydrogenation显示文摘To data,using strong metal-support interaction(SMSI)effect to improve the catalytic performance of metal catalysts is an important strategy for heterogeneous catalysis,and this effect is basically achieved by using reducible metal oxides.However,the formation of SMSI between metal and inert-support has been so little coverage and remains challenge.In this work,the SMSI effect can be effectively extended to the inert support-metal catalysis system to fabricate a Cu^(0)/Cu-doped SiO_(2) catalyst with high dispersion and loading(38.5 wt.%)through the interfacial effect of inert silica.In the catalyst,subnanometric composite of Cu cluster and atomic copper(in the configuration of Cu-O-Si)can be consciously formed on the silica interface,and verified by extended X-ray absorption fine structure(EXAFS),in situ X-ray photoelectron spectroscopy(XPS),and high-angle annular dark field-scanning transmission electron microscopy(HAADF-STEM)characterization.The promoting activity in transfer-hydrogenation by the SMSI effect of Cu-silica interface and the synergistic active roles of cluster and atomic Cu have also been revealed from surface interface structure,catalytic activity,and density functional theory(DFT)theoretical calculation at an atomic level.The subnanometric composite of cluster and atomic copper species can be derived from a facile synthesis strategy of metal-inert support SMSI effect and the realistic active site of Cu-based catalyst can also been identified accurately,thus it will help to expand the application of subnanometric materials in industrial catalysis.Ruoyu Fan Yange Zhang Zhi Hu Chun Chen Tongfei Shi Lirong Zheng Haimin Zhang Junfa Zhu Huijun Zhao Guozhong Wang 2021Nano Research2021,14,12:3
2In situ establishment of Co/MoS_(2) heterostructures onto inverse opal‐structured N,S‐doped carbon hollow nanospheres:Interfacial and architectural dual engineering for efficient hydrogen evolution reaction显示文摘Rational design of low‐cost and high‐efficiency non‐precious metal‐based catalysts toward the hydrogen evolution reaction(HER)is of paramount significance for the sustainable development of the hydrogen economy.Interfacial manipulationinduced electronic modulation represents a sophisticated strategy to enhance the intrinsic activity of a non‐precious electrocatalyst.Herein,we demonstrate the straightforward construction of Co/MoS_(2) hetero‐nanoparticles anchored on inverse opal‐structured N,S‐doped carbon hollow nanospheres with an ordered macroporous framework(denoted as Co/MoS_(2)@N,S-CHNSs hereafter)via a templateassisted method.Systematic experimental evidence and theoretical calculations reveal that the formation of Co/MoS_(2) heterojunctions can effectively modulate the electronic configuration of active sites and optimize the reaction pathways,remarkably boosting the intrinsic activity.Moreover,the inverse opal‐structured carbon substrate with an ordered porous framework is favorable to enlarge the accessible surface area and provide multidimensional mass transport channels,dramatically expediting the reaction kinetics.Thanks to the compositional synergy and structural superiority,the fabricated Co/MoS_(2)@N,S-CHNSs exhibit excellent HER activity with a low overpotential of 105mV to afford a current density of 10 mA/cm^(2).The rationale of interface manipulation and architectural design herein is anticipated to be inspirable for the future development of efficient and earth‐abundant electrocatalysts for a variety of energy conversion systems.Tingyu Lu Tongfei Li Desheng Shi Jialin Sun Huan Pang Lin Xu Jun Yang Yawen Tang 2021SmartMat2021,2,4:3
3Synthesis of asymmetric Hshaped block copolymer by the combination of atom transfer radical polymerization and living anionic polymerization显示文摘Xifei Yu Tongfei Shi Guo Zhang Lijia An 2006Polymer2006,47,:1
4Experimental study on mechanical properties and fracture toughness of magnesium phosphate cement显示文摘Yue Li Yaqiang Li Tongfei Shi Jiaqi Li 2015Construction and Building Materials2015,,:1
5Effect of Hydrodynamic Interaction on Flow-induced Polymer Translocation Through a Nanotube显示文摘DING Mingming DUAN Xiaozheng LU Yuyuan SHI Tongfei 2015Chemical Research in Chinese Universities2015,31,4:1
6Swelling Process of Thin Polymer Film Studied via in situ Spectroscopic Ellipsometry显示文摘XU Lin ZOU Zhiming ZHANG Huanhuan SHI Tongfei 2017Chemical Research in Chinese Universities2017,33,5:0
7Scalable biomimetic SARS-CoV‑2 nanovaccines with robust protective immune responses显示文摘Dear Editor,The emergence of the severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection requires rapid development of vaccines matching the pace of virus mutation.While the firstgeneration of nucleic acid vaccines have been successful,subunit vaccines carry far fewer safety concerns and also have shown promise in clinical trials.Xuenian Chen Tongfei Shi Chao Yang Fangman Chen Xuan He Kunbao Zhang Hanze Hu Lulu Cai Kam WLeong Dan Shao 2022Signal Transduction and Targeted Therapy2022,7,4:0
8Structure and Dynamics of Confined Polymer Melts from Attractive Interaction to Repulsive Interaction Between Polymer and Smooth Wall显示文摘LI Sijia ZHANG Wanxi YAO Weiguo SHI Tongfei 2015Chemical Research in Chinese Universities2015,31,3:0
9Oxygen‑Coordinated Single Mn Sites for Efficient Electrocatalytic Nitrate Reduction to Ammonia显示文摘Electrocatalytic nitrate reduction reaction has attracted increasing attention due to its goal of low carbon emission and environmental protection.Here,we report an efficient NitRR catalyst composed of single Mn sites with atomically dispersed oxygen(O)coordination on bacterial cellulose-converted graphitic carbon(Mn-O-C).Evidence of the atomically dispersed Mn-(O-C_(2))_(4)moieties embedding in the exposed basal plane of carbon surface is confirmed by X-ray absorption spectroscopy.As a result,the as-synthesized Mn-O-C catalyst exhibits superior NitRR activity with an NH_(3)yield rate(RNH_(3))of 1476.9±62.6μg h^(−1)cm^(−2)at−0.7 V(vs.reversible hydrogen electrode,RHE)and a faradaic efficiency(FE)of 89.0±3.8%at−0.5 V(vs.RHE)under ambient conditions.Further,when evaluated with a practical flow cell,Mn-O-C shows a high RNH_(3)of 3706.7±552.0μg h^(−1)cm^(−2)at a current density of 100 mA cm−2,2.5 times of that in the H cell.The in situ FT-IR and Raman spectroscopic studies combined with theoretical calculations indicate that the Mn-(O-C_(2))_(4)sites not only effectively inhibit the competitive hydrogen evolution reaction,but also greatly promote the adsorption and activation of nitrate(NO_(3)^(−)),thus boosting both the FE and selectivity of NH_(3)over Mn-(O-C_(2))_(4)sites.Shengbo Zhang Yuankang Zha Yixing Ye Ke Li Yue Lin Lirong Zheng Guozhong Wang Yunxia Zhang Huajie Yin Tongfei Shi Haimin Zhang 2024Nano-Micro Letters2024,16,1:0
10Polymorphism of Kdo-Based Glycolipids:The Elaborately Determined Stable and Dynamic Bicelles显示文摘Understanding how the diversity of glycolipids,including how their chemical structures and composition affect their biological functions,is a remarkable fundamental challenge.In this work,we employed a rare monosaccharide,3-deoxy-Dmanno-2-octulosonic acid(Kdo)to build a simple and biomimetic model to understand the diversity of glycolipids from the viewpoint of supramolecular chemistry.Kdo was chosen not only because its unusual 8-carbon acidic carbohydrate backbone is very different from common hexoses,but also because of its key structural role in lipopolysaccharides and prevalence in bacteria,plant life,and algae.It was found that although both of the two Kdo-lipids S-Kdo and Kdo-S derived from the same carbohydrate backbone and gave bicelles as their self-assembled morphology,experimental results revealed that the self-assembly showed pathway complexity.Bicelle is the thermodynamic product of S-Kdo,while for Kdo-S,the bicelle is only a kinetically trapped state,which finally transforms to a ribbon.Molecular simulation clearly revealed the different packing of Kdo-lipids in the bicelles with different contribution from hydrogen bonds and electrostatic interactions.Yingle Feng Long Li Qiqige Du Lu Gou Lei Zhang Yonghai Chai Ran Zhang Tongfei Shi Guosong Chen 2022CCS Chemistry2022,4,7:0
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