Modulation of Mo–Fe–C Sites Over Mesoscale Diffusion-Enhanced Hollow Sub-Micro Reactors Toward Boosted Electrochemical Water Oxidation

Feilong Gong; Mengmeng Liu; Lihua GongSheng YeQike JiangGuang ZengXiaoli ZhangZhikun PengYonghui ZhangShaoming FangJian Liu

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Modulation of Mo–Fe–C Sites Over Mesoscale Diffusion-Enhanced Hollow Sub-Micro Reactors Toward Boosted Electrochemical Water Oxidation

机译：Modulation of Mo–Fe–C Sites Over Mesoscale Diffusion-Enhanced Hollow Sub-Micro Reactors Toward Boosted Electrochemical Water Oxidation

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Simultaneously engineering the mesoscale mass transfer and surface reactionson the electrode can promote the kinetics of oxygen evolution reaction(OER). Herein, it is reported that the simultaneous modulation of the mesoscalediffusion and Mo–Fe–C sites formation over monodispersed hollowFe@MoS_2–C sub-micro reactors for boosted OER performance. According tofinite element simulation and analysis, the hollow nanostructured MoS_2–Chost possesses better mesoscale diffusion properties than its solid and yolk–shell counterparts. Notably, the sulfur vacancies and intercalated carbon inthe sub-micro reactor offer a unique microenvironment for Fe anchoring onMo–Fe–C sites. The stability and activity of the sites are revealed by theoreticalcalculations. The resultant Fe@MoS_2-C presents an OER overpotentialof 194 mV, which is much better than those of the Fe-based single-atomcatalysts reported in the data. This monodispersed sub-micro reactor involvesthe modulation of mesoscale diffusion and single-atom sites, and it may havebroad prospects for complex electrocatalytic reactions.

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《Advanced functional materials》 |2022年第30期|2202141.1-2202141.12|共12页
作者
Feilong Gong; Mengmeng Liu; Lihua GongSheng YeQike JiangGuang ZengXiaoli ZhangZhikun PengYonghui ZhangShaoming FangJian Liu;
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作者单位

State Key Laboratory of CatalysisDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian, Liaoning 116023, P. R. China;

Henan Institutes of Advanced TechnologyState Centre for International Cooperation on DesignerLow-Carbon & Environmental MaterialsSchool of Materials Science and EngineeringZhengzhou UniversityZhengzhou, Henan 450001, P. R. China;

Key Laboratory of Surface and Interface Science and Technologyof Henan ProvinceCollege of Material and Chemical EngineeringZhengzhou University of Light IndustryZhengzhou, Henan 450001, P. R. ChinaCollege of ScienceSchool of Plant ProtectionAnhui Agricultural UniversityHefei, Anhui 230036, P. R. ChinaCollege of ScienceSchool of Plant ProtectionAnhui Agricultural UniversityHefei, Anhui 230036, P. R. China,State Key Laboratory of CatalysisDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian, Liaoning 116023, P. R. ChinaDICP-Surrey Joint Centre for Future MaterialsDepartment of Chemical and Process Engineering and AdvancedTechnology Institute of University of SurreyGuildford, Surrey GU2 7XH, UK;

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diffusion enhancement; electrochemical water oxidation; MoS_2; singleatom catalysts; Submicro reactor;

Modulation of Mo–Fe–C Sites Over Mesoscale Diffusion-Enhanced Hollow Sub-Micro Reactors Toward Boosted Electrochemical Water Oxidation

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