Cooperation between dual metal atoms and nanoclusters enhances activity and stability for oxygen reduction and evolution
We have achieved the synthesis of dual-metal single atoms and atomic clusters that co-anchor on a highly graphitic carbon support. The catalyst comprises Ni4 (and Fe4) nanoclusters located adjacent to the corresponding NiN4 (and FeN4) single-atom sites, which is verified by systematic X-ray absorpti...
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sg-ntu-dr.10356-1702872023-09-06T01:49:26Z Cooperation between dual metal atoms and nanoclusters enhances activity and stability for oxygen reduction and evolution Wang, Zhe Jin, Xiaoyan Xu, Ruojie Yang, Zhenbei Ma, Shidong Yan, Tao Zhu, Chao Fang, Jian Liu, Yipu Hwang, Seong-Ju Pan, Zhijuan Fan, Hong Jin School of Physical and Mathematical Sciences Science::Physics Dual Single Atoms Nanocluster We have achieved the synthesis of dual-metal single atoms and atomic clusters that co-anchor on a highly graphitic carbon support. The catalyst comprises Ni4 (and Fe4) nanoclusters located adjacent to the corresponding NiN4 (and FeN4) single-atom sites, which is verified by systematic X-ray absorption characterization and density functional theory calculations. A distinct cooperation between Fe4 (Ni4) nanoclusters and the corresponding FeN4 (NiN4) atomic sites optimizes the adsorption energy of reaction intermediates and reduces the energy barrier of the potential-determining steps. This catalyst exhibits enhanced oxygen reduction and evolution activity and long-cycle stability compared to counterparts without nanoclusters and commercial Pt/C. The fabricated Zn-air batteries deliver a high power density and long-term cyclability, demonstrating their prospects in energy storage device applications. Z.W. thanks Soochow University, China, for providing financial support (2111500622). This work was also supported by National Research Foundation-Competitive Research Programs (NRF-CRP22-2019-0007) and the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (NRF-2022M3H4A4086103). The experiments at PAL were supported in part by MOST and POSTECH. Y.L. acknowledges the Open Project of Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology (KFKT2023-01). 2023-09-06T01:49:26Z 2023-09-06T01:49:26Z 2023 Journal Article Wang, Z., Jin, X., Xu, R., Yang, Z., Ma, S., Yan, T., Zhu, C., Fang, J., Liu, Y., Hwang, S., Pan, Z. & Fan, H. J. (2023). Cooperation between dual metal atoms and nanoclusters enhances activity and stability for oxygen reduction and evolution. ACS Nano, 17(9), 8622-8633. https://dx.doi.org/10.1021/acsnano.3c01287 1936-0851 https://hdl.handle.net/10356/170287 10.1021/acsnano.3c01287 37129379 2-s2.0-85156260624 9 17 8622 8633 en ACS Nano © 2023 American Chemical Society. All rights reserved. |
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Science::Physics Dual Single Atoms Nanocluster Wang, Zhe Jin, Xiaoyan Xu, Ruojie Yang, Zhenbei Ma, Shidong Yan, Tao Zhu, Chao Fang, Jian Liu, Yipu Hwang, Seong-Ju Pan, Zhijuan Fan, Hong Jin Cooperation between dual metal atoms and nanoclusters enhances activity and stability for oxygen reduction and evolution |
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We have achieved the synthesis of dual-metal single atoms and atomic clusters that co-anchor on a highly graphitic carbon support. The catalyst comprises Ni4 (and Fe4) nanoclusters located adjacent to the corresponding NiN4 (and FeN4) single-atom sites, which is verified by systematic X-ray absorption characterization and density functional theory calculations. A distinct cooperation between Fe4 (Ni4) nanoclusters and the corresponding FeN4 (NiN4) atomic sites optimizes the adsorption energy of reaction intermediates and reduces the energy barrier of the potential-determining steps. This catalyst exhibits enhanced oxygen reduction and evolution activity and long-cycle stability compared to counterparts without nanoclusters and commercial Pt/C. The fabricated Zn-air batteries deliver a high power density and long-term cyclability, demonstrating their prospects in energy storage device applications. |
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School of Physical and Mathematical Sciences |
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School of Physical and Mathematical Sciences Wang, Zhe Jin, Xiaoyan Xu, Ruojie Yang, Zhenbei Ma, Shidong Yan, Tao Zhu, Chao Fang, Jian Liu, Yipu Hwang, Seong-Ju Pan, Zhijuan Fan, Hong Jin |
format |
Article |
author |
Wang, Zhe Jin, Xiaoyan Xu, Ruojie Yang, Zhenbei Ma, Shidong Yan, Tao Zhu, Chao Fang, Jian Liu, Yipu Hwang, Seong-Ju Pan, Zhijuan Fan, Hong Jin |
author_sort |
Wang, Zhe |
title |
Cooperation between dual metal atoms and nanoclusters enhances activity and stability for oxygen reduction and evolution |
title_short |
Cooperation between dual metal atoms and nanoclusters enhances activity and stability for oxygen reduction and evolution |
title_full |
Cooperation between dual metal atoms and nanoclusters enhances activity and stability for oxygen reduction and evolution |
title_fullStr |
Cooperation between dual metal atoms and nanoclusters enhances activity and stability for oxygen reduction and evolution |
title_full_unstemmed |
Cooperation between dual metal atoms and nanoclusters enhances activity and stability for oxygen reduction and evolution |
title_sort |
cooperation between dual metal atoms and nanoclusters enhances activity and stability for oxygen reduction and evolution |
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2023 |
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https://hdl.handle.net/10356/170287 |
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1779156393725526016 |