DataVXACS Applied Energy MaterialsPaper
journal article·2018-09-27

Bimetallic Hofmann-Type Metal–Organic Framework Nanoparticles for Efficient Electrocatalysis of Oxygen Evolution Reaction

Junkuo Gao, Jingkun Cong, Yuhang Wu, Lu Sun, Juming Yao, Banglin Chen

ACS Applied Energy Materials
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Source abstract

Abstract

Metal–organic frameworks (MOFs) are promising platform materials for the electrocatalytic oxygen evolution reaction (OER). Here, Hofmann MOFs are applied as platforms to study the interaction between different metal elements and their influence on the OER activity. In all the MOFs, the Fe/Co mixed Hofmann MOF (CoFe-PYZ) demonstrates the lowest overpotential of 300 mV at 10 mA cm–2 in alkaline conditions (pH = 13). The Tafel slope of (CoFe-PYZ) is 44 mV dec–1. The enhanced catalytic activity is mainly attributed to the synergistic effects between Co2+ and Fe2+ ions, which is confirmed via XPS and density-functional theory (DFT) calculations.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsCatalysis & surfaces

OpenAlex topics: Electrocatalysts for Energy Conversion · Electrochemical Analysis and Applications · Fuel Cells and Related Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute of Fiber Based New Energy Materials, The Key laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education, College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China

Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249-0698, United States

Institute of Modern Optics, Nankai University, Tianjin 300071, China

Funding

National Natural Science Foundation of China · Zhejiang Province · Science Foundation, Zhejiang Sci-Tech University

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