Effect of Outer Carbon Layer Thickness of Carbon-covered N-doped Hollow Carbon Nanospheres on Its Electrocatalytic Performance
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2021年第2期
论文作者：陶博文 PAN Xiangchuan 张海宁
文章页码：166 - 173
摘 要：Hollow nitrogen-doped porous carbon materials covered with different thicknesses of carbon layers were synthesized to assist evaluation of the influence of nitrogen atom on the surrounding carbon atoms.The designed carbon-based materials were synthesized through pyrolysis of surface-attached block copolymer layers on silica nanoparticles with different thicknesses of the second block of grafted polymer chains,followed by removal of silica templates.The experimental results reveal that coverage a carbon layer with proper thickness can improve the oxygen reaction reduction activity of nitrogen-doped carbon materials as evidenced by the positive shift of half-wave potential in linear scanning voltammetry response curves.The conclusions may provide a reference work on understanding the active sites and designing materials with superior electrochemical performance.
陶博文，PAN Xiangchuan，张海宁
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology
摘 要：Hollow nitrogen-doped porous carbon materials covered with different thicknesses of carbon layers were synthesized to assist evaluation of the influence of nitrogen atom on the surrounding carbon atoms.The designed carbon-based materials were synthesized through pyrolysis of surface-attached block copolymer layers on silica nanoparticles with different thicknesses of the second block of grafted polymer chains,followed by removal of silica templates.The experimental results reveal that coverage a carbon layer with proper thickness can improve the oxygen reaction reduction activity of nitrogen-doped carbon materials as evidenced by the positive shift of half-wave potential in linear scanning voltammetry response curves.The conclusions may provide a reference work on understanding the active sites and designing materials with superior electrochemical performance.
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