Journal article
2D Single-Atom Catalyst with Optimized Iron Sites Produced by Thermal Melting of Metal-Organic Frameworks for Oxygen Reduction Reaction
Small methods, Vol.4(6), p.n/a
06/01/2020
Abstract
Zeolitic-imidazolate-frameworks-8 (ZIF-8) derivatives have recently been demonstrated as one of the most ideal precursors to prepare single-atom metal catalysts for oxygen reduction reaction (ORR). However, abundant single-atom metal sites are buried in the derived carbon nanoparticles, rendering them useless for ORR. Here a novel ZIF-8 "thermal melting" strategy is proposed to prepare a high specific surface area of Fe-N-doped graphene nanosheets (Fe-N/GNs) with single-atom Fe-sites on the surface which are accessible to electrolytes, optimizing their utilization and improving ORR activity. As a result, the Fe-N/GNs material exhibits excellent ORR activity with half-wave potentials of 0.903 V in alkaline media and 0.837 V in acidic media, which are comparable to commercial Pt/C catalysts.
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Details
- Title
- 2D Single-Atom Catalyst with Optimized Iron Sites Produced by Thermal Melting of Metal-Organic Frameworks for Oxygen Reduction Reaction
- Creators
- Dong Liu - Washington State UniversityJin-Cheng Li - Washington State Univ, Sch Mech & Mat Engn, Pullman, WA 99164 USAShichao Ding - Washington State UniversityZhaoyuan Lyu - Washington State UniversityShuo Feng - Washington State UniversityHangyu Tian - Washington State UniversityChenxi Huyan - Washington State UniversityMingjie Xu - Guangzhou HKUST Fok Ying Tung Research InstituteTao Li - Argonne National LaboratoryDan Du - Washington State UniversityPeng Liu - Lanzhou UniversityMinhua Shao - Hong Kong University of Science and TechnologyYuehe Lin - Washington State University
- Publication Details
- Small methods, Vol.4(6), p.n/a
- Academic Unit
- School of Mechanical and Materials Engineering
- Publisher
- Wiley
- Number of pages
- 7
- Grant note
- Washington State University 201706180050 / China Scholarship Council
- Identifiers
- 99901227842601842
- Language
- English
- Resource Type
- Journal article