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Title: Preparation of Nonprecious Metal Electrocatalysts for the Reduction of Oxygen Using a Low-Temperature Sacrificial Metal

Abstract

Non-platinum group metal (non-PGM) electrocatalysts for the oxygen reduction reaction (ORR) are generally composed of iron, nitrogen, and carbon synthesized through high-temperature pyrolysis. Among the various types of precursors, metal-organic frameworks (MOFs), zeolitic imidazolate framework (ZIF)-8 in particular, have often been used in the synthesis. The pyrolysis of ZIF-8 precursor relies on the use of Zn as a sacrificial metal (SM), and the optimal processing temperatures often exceed 1000 degrees C to generate active non-PGM catalysts. The high pyrolysis temperature tends to result in heterogeneous active moieties ranging from Fe single atoms to nanoparticles. In this study, we present the synthesis of non-PGM catalysts using Cd as the sacrificial metal instead of Zn. By using Cd, we were able to generate active non-PGM electrocatalysts from the MOF precursors at a low pyrolysis temperature of 750 degrees C, which helps preserve the single atomic iron active sites.

Authors:
 [1];  [1]; ORCiD logo [2];  [1];  [3];  [4];  [5]; ORCiD logo [1]; ORCiD logo [1];  [2]; ORCiD logo [1]
  1. Univ. of Illinois at Urbana-Champaign, IL (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Knox College, Galesburg, IL (United States)
  5. CRRC Industrial Academy Co., Ltd, Fengtai, Beijing (China)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1632829
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Journal of the American Chemical Society
Additional Journal Information:
Journal Volume: 142; Journal Issue: 12; Journal ID: ISSN 0002-7863
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Al-Zoubi, Talha, Zhou, Yu, Yin, Xi, Janicek, Blanka, Sun, Chengjun, Schulz, Charles E., Zhang, Xiaohui, Gewirth, Andrew A., Huang, Pinshane, Zelenay, Piotr, and Yang, Hong. Preparation of Nonprecious Metal Electrocatalysts for the Reduction of Oxygen Using a Low-Temperature Sacrificial Metal. United States: N. p., 2020. Web. https://doi.org/10.1021/jacs.9b11061.
Al-Zoubi, Talha, Zhou, Yu, Yin, Xi, Janicek, Blanka, Sun, Chengjun, Schulz, Charles E., Zhang, Xiaohui, Gewirth, Andrew A., Huang, Pinshane, Zelenay, Piotr, & Yang, Hong. Preparation of Nonprecious Metal Electrocatalysts for the Reduction of Oxygen Using a Low-Temperature Sacrificial Metal. United States. https://doi.org/10.1021/jacs.9b11061
Al-Zoubi, Talha, Zhou, Yu, Yin, Xi, Janicek, Blanka, Sun, Chengjun, Schulz, Charles E., Zhang, Xiaohui, Gewirth, Andrew A., Huang, Pinshane, Zelenay, Piotr, and Yang, Hong. Mon . "Preparation of Nonprecious Metal Electrocatalysts for the Reduction of Oxygen Using a Low-Temperature Sacrificial Metal". United States. https://doi.org/10.1021/jacs.9b11061. https://www.osti.gov/servlets/purl/1632829.
@article{osti_1632829,
title = {Preparation of Nonprecious Metal Electrocatalysts for the Reduction of Oxygen Using a Low-Temperature Sacrificial Metal},
author = {Al-Zoubi, Talha and Zhou, Yu and Yin, Xi and Janicek, Blanka and Sun, Chengjun and Schulz, Charles E. and Zhang, Xiaohui and Gewirth, Andrew A. and Huang, Pinshane and Zelenay, Piotr and Yang, Hong},
abstractNote = {Non-platinum group metal (non-PGM) electrocatalysts for the oxygen reduction reaction (ORR) are generally composed of iron, nitrogen, and carbon synthesized through high-temperature pyrolysis. Among the various types of precursors, metal-organic frameworks (MOFs), zeolitic imidazolate framework (ZIF)-8 in particular, have often been used in the synthesis. The pyrolysis of ZIF-8 precursor relies on the use of Zn as a sacrificial metal (SM), and the optimal processing temperatures often exceed 1000 degrees C to generate active non-PGM catalysts. The high pyrolysis temperature tends to result in heterogeneous active moieties ranging from Fe single atoms to nanoparticles. In this study, we present the synthesis of non-PGM catalysts using Cd as the sacrificial metal instead of Zn. By using Cd, we were able to generate active non-PGM electrocatalysts from the MOF precursors at a low pyrolysis temperature of 750 degrees C, which helps preserve the single atomic iron active sites.},
doi = {10.1021/jacs.9b11061},
journal = {Journal of the American Chemical Society},
number = 12,
volume = 142,
place = {United States},
year = {2020},
month = {3}
}

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