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Li M, Fan L, Xiao Z, Zhang L, Wang Z, Kang Z, Guo H, Dai F, Lu X, Sun D. Micelles of Mesoporous Silica with Inserted Iron Complexes as a Platform for Constructing Efficient Electrocatalysts for Oxygen Reduction. ACS APPLIED MATERIALS & INTERFACES 2020; 12:54720-54731. [PMID: 33232601 DOI: 10.1021/acsami.0c16382] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Iron, N-codoped carbon materials (Fe-N-C) are promising electrocatalysts toward oxygen reduction reactions due to their high atom utilization efficiency and intrinsic activity. Nanostructuring of the Fe-N-C materials, such as introducing porosity into the carbon structure, would be conducive to further increasing the exposure of active sites as well as improving the mass transfer. Herein, we explore the potential of iron complex-functionalized micelles of mesoporous SiO2 as a platform for constructing porous Fe-N-C materials. The classical three-dimensional MCM-48 was selected as a proof-of-concept example, which was utilized as the hard template, and cetyltrimethylammonium bromide micelles inside it played the role of the main carbon source. Fe-Nx sites were derived from Fe-1,10-phenanthroline complexes in the micelles introduced by in situ incorporation of 1,10-phenanthroline and post Fe2+ insertion in an aqueous solution. After thermal annealing in a nitrogen atmosphere and subsequent removal of the MCM-48 framework, a carbon material that possesses porous structural features with uniformly dispersed Fe-Nx sites (MPC@PhFe) was obtained, which shows superior ORR activity in a 0.1 M KOH solution and great potential for Zn-air battery applications as well. This work demonstrates the feasibility as well as the effectiveness of turning micelles of mesoporous SiO2 into porous carbon structures and might offer a universal strategy for manufacturing carbon materials for future application in energy storage and conversion.
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Affiliation(s)
- Mengfei Li
- School of Materials Science and Engineering, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Lili Fan
- School of Materials Science and Engineering, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Zuoxu Xiao
- School of Materials Science and Engineering, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Ling Zhang
- School of Materials Science and Engineering, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Zhikun Wang
- School of Materials Science and Engineering, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Zixi Kang
- School of Materials Science and Engineering, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Hailing Guo
- State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, China National Petroleum Corp. (CNPC), China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Fangna Dai
- School of Materials Science and Engineering, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Xiaoqing Lu
- School of Materials Science and Engineering, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Daofeng Sun
- School of Materials Science and Engineering, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
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Ran W, Dong J, Sun T, Chen J, Xu L. Iron, Cobalt, and Nitrogen Tri‐Doped Ordered Mesoporous Carbon as a Highly Efficient Electrocatalyst for Oxygen Reduction Reaction. ChemistrySelect 2019. [DOI: 10.1002/slct.201901641] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Wu Ran
- State Key Laboratory of Organic−Inorganic CompositesBeijing University of Chemical Technology Beijing 100029 China
| | - Jing Dong
- State Key Laboratory of Organic−Inorganic CompositesBeijing University of Chemical Technology Beijing 100029 China
| | - Tingting Sun
- Department of ChemistryTsinghua University Beijing 100084 China
| | - Jianfeng Chen
- State Key Laboratory of Organic−Inorganic CompositesBeijing University of Chemical Technology Beijing 100029 China
| | - Lianbin Xu
- State Key Laboratory of Organic−Inorganic CompositesBeijing University of Chemical Technology Beijing 100029 China
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Zhang B, Zhang E, Wang S, Zhang Y, Ma Z, Qiu Y. Bifunctional oxygen electrocatalyst derived from photochlorinated graphene for rechargeable solid-state Zn-air battery. J Colloid Interface Sci 2019; 543:84-95. [DOI: 10.1016/j.jcis.2019.02.044] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 02/07/2019] [Accepted: 02/13/2019] [Indexed: 11/26/2022]
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