Atomically Dispersed Ruthenium Catalysts with Open Hollow Structure for Lithium-Oxygen BatteriesOACSTPCD
Atomically Dispersed Ruthenium Catalysts with Open Hollow Structure for Lithium-Oxygen Batteries
Lithium-oxygen battery with ultra-high theoretical energy density is considered a highly competitive next-generation energy stor-age device,but its practical application is severely hindered by issues such as difficult decomposition of discharge products at present.Here,we have developed N-doped carbon anchored atomically dispersed Ru sites cathode catalyst with open hol-low structure(h-RuNC)for Lithium-oxygen bat-tery.On one hand,the abundance of atomically dispersed Ru sites can effectively catalyze the for-mation and decomposition of discharge products,thereby greatly enhancing the redox kinetics.On the other hand,the open hollow structure not only enhances the mass activity of atomically dispersed Ru sites but also improves the diffusion efficiency of catalytic molecules.Therefore,the excellent activity from atomically dispersed Ru sites and the enhanced diffusion from open hollow structure respectively improve the redox kinetics and cycling stability,ultimately achieving a high-performance lithium-oxygen battery.
Xin Chen;Yu Zhang;Chang Chen;Huinan Li;Yuran Lin;Ke Yu;Caiyun Nan;Chen Chen
Beijing Advanced Innovation Center for Materials Genome Engineering,Institute of Solid State Chemistry,University of Science and Technology Beijing,Beijing 100083,People's Republic of ChinaEngineering Research Center of Advanced Rare Earth Materials,Department of Chemistry,Tsinghua University,Beijing 100084,People's Republic of ChinaBeijing Key Laboratory of Energy Conversion and Storage Materials Institution,College of Chemistry,Beijing Normal University,Beijing 100875,People's Republic of China
Atomically dispersedOpen hollow structureDischarge productLithiumOxygen battery
《纳微快报（英文）》 2024 (002)
154-164 / 11
This work was supported by National Key R&D Program of China(2021YFF0500503),National Natural Sci-ence Foundation of China(21925202,U22B2071),International Joint Mission on Climate Change and Carbon Neutrality.Open access funding provided by Shanghai Jiao Tong University.
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