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| 1 | Controllable synthesis of grain boundary-enriched Pt nanoworms decorated on graphitic carbon nanosheets for ultrahigh methanol oxidation catalytic activity显示文摘Although one-dimensional Pt nanocrystals have long been regarded as ideal electrode catalysts for fuel cells,the synthetic techniques commonly involve the use of various complicated templates or surfactants,which have largely hampered their large-scale industrial application.Herein,we present a convenient and cost-effective approach to the stereoassembly of quasi-one-dimensional grain boundary-enriched Pt nanoworms on nitrogen-doped low-defect graphitic carbon nanosheets(Pt NWs/NL-CNS).Benefiting from its numerous catalytically active grain boundaries as well as optimized electronic structure,the as-derived Pt NWs/NL-CNS catalyst possesses exceptionally good electrocatalytic properties for methanol oxidation,including an ultrahigh mass activity of 1949.5 mA mg^(-1), reliable long-term durability,and strong poison tolerance,affording one of the most active Pt-based electrocatalysts for methanol oxidation reaction.Density functional theory calculation further reveals that the formation of worm-shape Pt morphology is attributed to the modified electronic structure as well as controllable defect density of the carbon matrix,which could also weaken the adsorption ability of Pt towards CO molecule and meanwhile synergistically promotes the catalytic reaction kinetics. | Huajie Huang Yujie Wei Ying Yang Minmin Yan Haiyan He Quanguo Jiang Xiaofei Yang Jixin Zhu | 2021 | Journal of Energy Chemistry2021，30，6： | 2 |
| 2 | Magnetic iron oxide nanoparticles: synthesis and surface functionalization strategies显示文摘 | WU Wei HE Quanguo JIANG Changzhong | 2008 | Nanoscale Res Lett2008，3，11： | 1 |
| 3 | Magnetic Iron Oxide Nanoparticles: Synthesis and Surface Functionalization Strategies显示文摘 | Wei Wu Quanguo He Changzhong Jiang | 2008 | Nanoscale Research Letters2008，，11： | 1 |
| 4 | Equilibrium Phase Behavior of Ethylene Glycol/Glycerin+RbNO3/CsNO3+H2O at 288.15 and 298.15 K显示文摘 | ZHANG Huiying LI Shuni ZHU Weiwei ZHAI Quanguo JIANG Yucheng HU Mancheng | 2014 | Chemical Research in Chinese Universities2014，30，6： | 1 |
| 5 | Magnetic iron oxide nanoparticles: synthesis and surface {unctionaliza-tion strategies 显示文摘 | Wu Wei He Quanguo Jiang Changzhong | 2008 | Nanoscale Res Lett2008，3，： | 1 |
| 6 | Hydrogen storage in porous graphene with Al decoration显示文摘 | Zhimin Ao Shixue Dou Zhemi Xu Quanguo Jiang Guoxiu Wang | 2014 | International Journal of Hydrogen Energy2014，，： | 1 |
| 7 | Magnetic Iron Oxide Nanoparticles: Synthesis and Surface Functionalization Strategies 显示文摘 | Wu Wei He Quanguo Jiang Changzhong | 2008 | Nanoscale Res Lett2008，，3： | 1 |
| 8 | Magnetic Iron Oxide Nanoparticles: Synthesis and Surface Functionali- zation Stratigies显示文摘 | Wu Wei He Quanguo Jiang Changzhong | 2008 | Nanoscale Research Letters2008，3，11： | 1 |
| 9 | Magnetic Iron Oxide Nanoparticles: Synthesis and Surface Functionalization Strategies显示文摘 | Wei Wu Quanguo He Changzhong Jiang | 2008 | Nanoscale Research Letters2008，，11： | 1 |
| 10 | Strain boosts CO oxidation on Ni single-atom-catalyst supported by defective graphene显示文摘In order to realize the sulfur and water resistance and facilitate the CO oxidation reactions,the effects of strain on the adsorption of CO,O_(2),SO_(2)and H_(2)O molecules on Ni single-atom-catalyst supported by single-carbon-vacancy graphene(Ni-SG) have been studied based on first principles calculations.It shows that the compressive strain increases the adsorption energies of all above mentioned molecules on Ni-SG,where SO_(2)is adsorbed more strongly on Ni-SG than CO.However,in the presence of tensile strain,the adsorption energies decreases significantly when the molecules(O_(2)and SO_(2)) obtain electrons from NiSG,while the adsorption energies just slightly decrease when the molecules(CO and H_(2)O) lose electrons to Ni-SG,which finally achieves the preferential adsorption of CO and O_(2)molecules on Ni-SG by tensile strain.In addition,with tensile strain increasing to 10%,the rate-limited energy barrier along Eley-Rideal(ER) path monotonically increases from 0.77 eV to 0.98 eV,while the rate-limited energy barrier along Langmuir-Hinshelwood(LH) path monotonically decreases from 0.54 eV to 0.44 eV,indicating that the tensile strain can facilitate the LH mechanism while imped the ER mechanism on Ni-SG.The Hirshfeld charge and orbital levels of O_(2)and CO molecules are modulated by the tensile strain,which plays an important role for the decreasing of energy barriers for CO oxidation.Overall,the tensile strain can enhance the sulfur and water resistance of Ni-SG,as well as boost the CO oxidation reactions. | Quanguo Jiang Yushuai Qian Yuqing Liu Min Huang Zhimin Ao | 2023 | Chinese Chemical Letters2023，34，2： | 0 |
| 11 | Phase Behavior of Ionic Liquids-Cesium Carbonate-Water Aqueous Two-phase Systems and Their Extraction of L-Tryptophan显示文摘 | LI Shuang LI Shuni ZHAI Quanguo JIANG Yueheng HU Mancheng | 2018 | Chemical Research in Chinese Universities2018，34，1： | 0 |
| 12 | Ultra-high-temperature application of MXene: Stabilization of 2D Ti_(3)C_(2)T_(x) for cross-scale strengthening and toughening of 3D TiC显示文摘Transition metal carbide/nitride cores within MXenes make them considerably useful for ultra-high-temperature reinforcement.However,extensive research on Ti_(3)C_(2)T_(x) MXene has revealed its tendency to undergo a phase transition to TiCy at temperatures above 800℃due to high activity of a superficial Ti atomic layer.Herein,spark plasma sintering of Ti_(3)C_(2)T_(x) and TiC is performed to prevent the Ti_(3)C_(2)T_(x) phase transition at temperatures up to 1900℃through the fabrication of composites at a pressure of 50 MPa.Using a focused ion beam scanning electron microscope to separate layered substances in the composites and examining selected area diffraction spots in a transmission electron microscope enabled identification of non-phase-transitioned MXene.First-principles calculations based on density functional theory indicated the formation of strong chemical bonding interfaces between Ti_(3)C_(2)T_(x) and TiC,which imposed a stability constraint on the Ti atomic layer at the Ti_(3)C_(2)T_(x) surface.Mechanical performance tests,such as three-point bending and fracture toughness analysis,demonstrated that the addition of Ti_(3)C_(2)T_(x) can effectively improve the cross-scale strengthening and toughening of the TiC matrix,providing a new path for designing and developing two-dimensional(2D)carbides cross-scale-enhanced three-dimensional(3D)carbides with the same elements relying on a wide variety of MXenes. | Lu Liu Guobing Ying Quanguo Jiang Dong Wen Peng Wang Meng Wu Ziying Ji Yongting Zheng Xiang Wang | 2024 | Journal of Advanced Ceramics2024，13，1： | 0 |
| 13 | Density functional theory investigation on selective adsorption of VOCs on borophene显示文摘In the field of volatile organic compounds(VOCs)pollution control,adsorption is one of the major control methods,and effective adsorbents are desired in this technology.In this work,the density functional theory(DFT)calculations are employed to investigate the adsorption of typical VOCs molecules on the two-dimensional material borophenes.The results demonstrate that both structure ofχBorophene;2D material;Volatile organic compounds(VOCs);Selective adsorption;Electronic structure andβ12 borophene can chemically adsorb ethylene and formaldehyde with forming chemical bonds and releasing large energy.However,other VOCs,including ethane,methanol,formic acid,methyl chloride,benzene and toluene,are physically adsorbed with weak interaction.The analysis of density of states(DOS)reveals that the chemical adsorption changes the conductivity of borophenes,while the physical adsorption has no distinct effect on the conductivity.Therefore,bothχ^(3)andβ_(12) borophene are appropriate adsorbents for selective adsorption of ethylene and formaldehyde,and they also have potential in gas sensor applications due to the obvious conductivity change during the adsorption. | Wenlang Li Quanguo Jiang Didi Li Zhimin Ao Taicheng Ana | 2021 | Chinese Chemical Letters2021，32，9： | 0 |
| 14 | Constructing 3D interweaved MXene/graphitic carbon nitride nanosheets/graphene nanoarchitectures for promoted electrocatalytic hydrogen evolution显示文摘The technique of electrocatalytic hydrogen evolution reaction (HER) represents a development trend of clean energy generation and conversion,while the electrode catalysts are bound to be the core unit in the electrochemical HER system.Herein,we demonstrate a bottom-up approach to the construction of three-dimensional (3D) interconnected ternary nanoarchitecture originated from Ti_(3)C_(2)T_(x)MXene,graphitic carbon nitride nanosheets and graphene (MX/CN/RGO) through a convenient co-assembly process.By virtue of the 3D porous frameworks with ultrathin walls,large specific surface areas,optimized electronic structures,high electric conductivity,the resulting MX/CN/RGO nanoarchitecture expresses an exceptional HER performance with a low onset potential of only 38 m V,a small Tafel slop of 76 m V dec^(-1) as well as long lifespan,all of which are more competitive than those of the bare Ti_(3)C_(2)T_(x),g-C_(3)N_(4),graphene as well as binary MX/RGO and CN/RGO electrocatalysts.Theoretical simulations further verify that the ternary MX/CN/RGO nanoarchitecture with ameliorative band structure is able to facilitate the electron transport and meanwhile offer multistage catalytically active sites,thereby guaranteeing rapid HER kinetics during the electrocatalytic process. | Haiyan He Yuxian Chen Cuizhen Yang Lu Yang Quanguo Jiang Huajie Huang | 2022 | Journal of Energy Chemistry2022，31，4： | 0 |
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