A Battery Process Activated Highly Efficient Carbon Catalyst toward Oxygen Reduction by Stabilizing Lithium– Oxygen Bonding

Shunda Wen; Bowen Liu; Wei LiTao LiangXianglong LiDing YiBin LuoLinjie ZhiDong LiuBin Wang

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A Battery Process Activated Highly Efficient Carbon Catalyst toward Oxygen Reduction by Stabilizing Lithium– Oxygen Bonding

机译：A Battery Process Activated Highly Efficient Carbon Catalyst toward Oxygen Reduction by Stabilizing Lithium– Oxygen Bonding

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Graphene oxide (GO) has shown broad prospects in various practical applications,but it has been considered as a non-active catalyst for the oxygenreduction reaction (ORR) unless a pretreatment such as high temperatureheteroatoms-doping is applied. Here, an interdisciplinary strategy is reportedby utilizing lithium-ion battery as a pretreatment processing to activate GO.The electrochemical battery process endows the GO with boosted ORRcatalytic activity, exceeding that of nitrogen-doped graphene at high temperature,a well-recognized carbon catalyst. A series of control experiments pointto that the carbon–oxygen–lithium bonding (C–O–Li) is possibly the originof the activity. Further theoretical simulation tells that the lithium speciesstabilize the COO groups that help maintain the catalytic activity of thecatalyst. Different from traditional chemical synthesis, this method providesa way to realize the lithium doping that has rarely been achieved for theheteroatoms-doped carbon catalysts and also the control of the catalytic performance.Moreover, the proposed catalytic mechanism inspires researchersto pay more attention to the interaction of metallic heteroatoms and theoxygen-containing functional groups in carbon. Such an interdisciplinaryresearch combining the batteries and catalysis brings a broader vision to thefield of carbon-based electrochemistry.

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来源
《Advanced functional materials》 |2022年第35期|2203960.1-2203960.9|共9页
作者
Shunda Wen; Bowen Liu; Wei LiTao LiangXianglong LiDing YiBin LuoLinjie ZhiDong LiuBin Wang;
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作者单位

CAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and Technology (NCNST)Beijing 100190, China University of Chinese Academy of SciencesBeijing 100049, China;

State Key Laboratory of Organic–Inorganic CompositesCollege of Chemical EngineeringCollege of Materials Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029, China;

State Key Laboratory of Organic–Inorganic CompositesCollege of Chemical EngineeringCollege of Materials Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029, China CAS Key Laboratory of Nanosystem and Hierarchical FabricationNatiDepartment of PhysicsSchool of Physical Science and EngineeringBeijing Jiaotong UniversityBeijing 100044, ChinaCAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and Technology (NCNST)Beijing 100190, ChinaNanomaterials CentreSchool of Chemical Engineering and Australian Institute forBioengineering and NanotechnologyThe University of QueenslandSt Lucia, Queensland 4072, Australia;

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batteries; catalyses; graphene oxides; Li–O bonds; ORRs;

A Battery Process Activated Highly Efficient Carbon Catalyst toward Oxygen Reduction by Stabilizing Lithium– Oxygen Bonding

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