Interfacial electronic coupling in Mn3O4/C@FeOOH nano-octahedrals regulates intermediate adsorption for highly efficient oxygen evolution reaction

doi:10.1016/j.apsusc.2022.155951

	Tang, Hongmei 1; Lv, Lin 2,3; Xian, Haiyang 4; Ran, Lingyu 4; Chen, Bohong 1; Fu, Yinxuan 1; Wu, Yuandan 1; Fan, Min 1; Wan, Houzhao 2,3; Wang, Hao 2,3
	Interfacial electronic coupling in Mn3O4/C@FeOOH nano-octahedrals regulates intermediate adsorption for highly efficient oxygen evolution reaction
Source Publication	APPLIED SURFACE SCIENCE
ISSN	0169-4332
	2023-03-01
Volume	612 Pages:9
DOI	10.1016/j.apsusc.2022.155951
Language	英语
WOS Research Area	Chemistry ; Materials Science ; Physics
Abstract	Exploiting high-efficient low-cost metal-based electrocatalysts for oxygen evolution reaction (OER) in alkaline media is still urgent and challenging. Herein, a hierarchical nanostructure of manganese oxide/carbon@iron oxyhydroxide (denoted as Mn3O4/C@FeOOH) nano-octahedrons via a three-step approach. The optimal electrocatalyst Mn3O4/C@FeOOH was achieved and delivered a low overpotential of 295 mV at 10 mA cm-2, a small Tafel slope of 47.6 mV dec- 1 and a decent stability toward long-term electrolysis of 16 h with only 2.2% degradation. The excellent OER performance of the hybrid Mn3O4/C@FeOOH could be attributed to the synergistic effects of the individual counterparts, namely, the structural support of the amorphous carbon skeleton to maintain the integrity of microstructures, the enhanced conductivity imparted by the uniformly dispersed Mn3O4 and graphite nanoparticles, and the partial electron redistribution between the Mn3O4/C and FeOOH interface, optimizing the adsorption/desorption of intermediate oxygenated species. This work provides a novel strategy to prepare an efficient and stable electrocatalyst for OER in alkaline media.
Keyword	Metal -organic framework Manganese oxide Iron oxyhydroxide Oxygen evolution reaction Electron distribution
WOS ID	WOS:000901254900003
Indexed By	SCI
Citation statistics	Cited Times:10[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.gig.ac.cn/handle/344008/71488
Collection	中国科学院矿物学与成矿学重点实验室
Corresponding Author	Lv, Lin; Ran, Lingyu
Affiliation	1.Jiangxi Acad Sci, Inst Energy Res, Nanchang 330096, Peoples R China 2.Hubei Yangtze Memory Labs, Wuhan 430205, Peoples R China 3.Hubei Univ, Sch Microelect, Wuhan 430062, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Key Lab Mineral & Metallogeny, Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou 510640, Peoples R China
Recommended Citation GB/T 7714	Tang, Hongmei,Lv, Lin,Xian, Haiyang,et al. Interfacial electronic coupling in Mn3O4/C@FeOOH nano-octahedrals regulates intermediate adsorption for highly efficient oxygen evolution reaction[J]. APPLIED SURFACE SCIENCE,2023,612:9.
APA	Tang, Hongmei.,Lv, Lin.,Xian, Haiyang.,Ran, Lingyu.,Chen, Bohong.,...&Wang, Hao.(2023).Interfacial electronic coupling in Mn3O4/C@FeOOH nano-octahedrals regulates intermediate adsorption for highly efficient oxygen evolution reaction.APPLIED SURFACE SCIENCE,612,9.
MLA	Tang, Hongmei,et al."Interfacial electronic coupling in Mn3O4/C@FeOOH nano-octahedrals regulates intermediate adsorption for highly efficient oxygen evolution reaction".APPLIED SURFACE SCIENCE 612(2023):9.

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