Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/106104
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Type: Journal article
Title: Surface and interface engineering of noble-metal-free electrocatalysts for efficient energy conversion processes
Author: Zhu, Y.
Guo, C.
Zheng, Y.
Qiao, S.-Z.
Citation: Accounts of Chemical Research, 2017; 50(4):915-923
Publisher: American Chemical Society
Issue Date: 2017
ISSN: 0001-4842
1520-4898
Statement of
Responsibility: 
Yun Pei Zhu, Chunxian Guo, Yao Zheng, and Shi-Zhang Qiao
Abstract: CONSPECTUS: Developing cost-effective and high-performance electrocatalysts for renewable energy conversion and storage is motivated by increasing concerns regarding global energy security and creating sustainable technologies dependent on inexpensive and abundant resources. Recent achievements in the design and synthesis of efficient nonprecious- metal and even non-metal electrocatalysts make the replacement of noble metal counterparts for the hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and oxygen reduction reaction (ORR) with earth-abundant elements, for example, C, N, Fe, Mn, and Co, a realistic possibility. It has been found that surface atomic engineering (e.g., heteroatom-doping) and interface atomic or molecular engineering (e.g., interfacial bonding) can induce novel physicochemical properties and strong synergistic effects for electrocatalysts, providing new and efficient strategies to greatly enhance the catalytic activities. In this Account, we discuss recent progress in the design and fabrication of efficient electrocatalysts based on carbon materials, graphitic carbon nitride, and transition metal oxides or hydroxides for efficient ORR, OER, and HER through surface and interfacial atomic and molecular engineering. Atomic and molecular engineering of carbon materials through heteroatom doping with one or more elements of noticeably different electronegativities can maximally tailor their electronic structures and induce a synergistic effect to increase electrochemical activity. Nonetheless, the electrocatalytic performance of chemically modified carbonaceous materials remains inferior to that of their metallic counterparts, which is mainly due to the relatively limited amount of electrocatalytic active sites induced by heteroatom doping.
Rights: © 2017 American Chemical Society
DOI: 10.1021/acs.accounts.6b00635
Grant ID: http://purl.org/au-research/grants/arc/DP130104459
http://purl.org/au-research/grants/arc/DP140104062
http://purl.org/au-research/grants/arc/DP160104866
http://purl.org/au-research/grants/arc/LP160100927
Published version: http://dx.doi.org/10.1021/acs.accounts.6b00635
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Chemical Engineering publications

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