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Title: Dynamic traction of lattice-confined platinum atoms into mesoporous carbon matrix for hydrogen evolution reaction
Authors: Lou, David Xiong Wen
Zhang, Huabin
An, Pengfei
Zhou, Wei
Guan, Bu Yuan
Zhang, Peng
Dong, Juncai
Keywords: Platinum (Pt) Electrocatalysts
Hydrogen Evolution Reaction
Issue Date: 2018
Source: Zhang, H., An, P., Zhou, W., Guan, B. Y., Zhang, P., Dong, J., et al. (. (2018). Dynamic traction of lattice-confined platinum atoms into mesoporous carbon matrix for hydrogen evolution reaction. Science Advances, 4(1), eaao6657-.
Series/Report no.: Science Advances
Abstract: Constructing atomically dispersed platinum (Pt) electrocatalysts is essential to build high-performance and cost-effective electrochemical water-splitting systems. We present a novel strategy to realize the traction and stabilization of isolated Pt atoms in the nitrogen-containing porous carbon matrix (Pt@PCM). In comparison with the commercial Pt/C catalyst (20 weight %), the as-prepared Pt@PCM catalyst exhibits significantly boosted mass activity (up to 25 times) for hydrogen evolution reaction. Results of extended x-ray absorption fine structure investigation and density functional theory calculation suggest that the active sites are associated with the lattice-confined Pt centers and the activated carbon (C)/nitrogen (N) atoms at the adjacency of the isolated Pt centers. This strategy may provide insights into constructing highly efficient single-atom catalysts for different energy-related applications.
DOI: 10.1126/sciadv.aao6657
Rights: © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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