Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/143597
Title: Auto-optimizing hydrogen evolution catalytic activity of ReS2 through intrinsic charge engineering
Authors: Zhou, Yao
Song, Erhong
Zhou, Jiadong
Lin, Junhao
Ma, Ruguang
Wang, Youwei
Qiu, Wujie
Shen, Ruxiang
Suenaga, Kazutomo
Liu, Qian
Wang, Jiacheng
Liu, Zheng
Liu, Jianjun
Keywords: Engineering::Materials
Issue Date: 2018
Source: Zhou, Y., Song, E., Zhou, J., Lin, J., Ma, R., Wang, Y., ... Liu, J. (2018). Auto-optimizing hydrogen evolution catalytic activity of ReS2 through intrinsic charge engineering. ACS Nano, 12(5), 4486-4493. doi:10.1021/acsnano.8b00693
Journal: ACS Nano
Abstract: Optimizing active electronic states responding to catalysis is of paramount importance for developing high-activity catalysts because thermodynamics itself may not favor forming an optimal electronic state. Setting the monolayer transition metal dichalcogenide (TMD) ReS2 as a model for the hydrogen evolution reaction (HER), we uncover that intrinsic charge engineering has an auto-optimizing effect on enhancing catalytic activity through regulating active electronic states. The experimental and theoretical results show that intrinsic charge compensation from S to Re-Re bonds could manipulate the active electronic states, allowing hydrogen to absorb the active sites neither strongly nor weakly. Two types of S sites exhibit the optimal hydrogen adsorption free energies (Δ GH*) of 0.016 and 0.061 eV, which are the closest to zero corresponding to the highest HER activity. This auto-optimization via charge engineering is further demonstrated by higher turnover frequency per sulfur atom of 1-10 s-1 and lower overpotential of -147 mV at 10 mA cm-2 than those of other TMDs through multiscale activation and optimization. This work opens an avenue in designing extensive active catalysts through intrinsic charge engineering strategy.
URI: https://hdl.handle.net/10356/143597
ISSN: 1936-086X
DOI: 10.1021/acsnano.8b00693
Rights: © 2018 American Chemical Society. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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