Heterojunction-Based Electron Donators to Stabilize and Activate Ultrafine Pt Nanoparticles for Efficient Hydrogen Atom Dissociation and Gas Evolution

Lu Han Sun; Qi Yuan Li; Shi Nan Zhang; Dong Xu; Zhong Hua Xue; Hui Su; Xiu Lin; Guang Yao Zhai; Peng Gao; Shin Ichi Hirano; Jie Sheng Chen; Xin Hao Li

doi:10.1002/anie.202111920

Heterojunction-Based Electron Donators to Stabilize and Activate Ultrafine Pt Nanoparticles for Efficient Hydrogen Atom Dissociation and Gas Evolution

Lu Han Sun, Qi Yuan Li, Shi Nan Zhang, Dong Xu, Zhong Hua Xue, Hui Su, Xiu Lin, Guang Yao Zhai, Peng Gao, Shin Ichi Hirano, Jie Sheng Chen, Xin Hao Li^*

^*Corresponding author for this work

Marine Science

Research output: Contribution to journal › Article › peer-review

59 Scopus citations

Abstract

Platinum (Pt) is the most effective bench-marked catalyst for producing renewable and clean hydrogen energy by electrochemical water splitting. There is demand for high HER catalytic activity to achieve efficient utilization and minimize the loading of Pt in catalysts. In this work, we significantly boost the HER mass activity of Pt nanoparticles in Pt_x/Co to 8.3 times higher than that of commercial Pt/C by using Co/NC heterojunctions as a heterogeneous version of electron donors. The highly coupled interfaces between Co/NC and Pt metal enrich the electron density of Pt nanoparticles to facilitate the adsorption of H⁺, the dissociation of Pt−H bonds and H₂ release, giving the lowest HER overpotential of 6.9 mV vs. RHE at 10 mA cm⁻² in acid among reported HER electrocatalysts. Given the easy scale-up synthesis due to the stabilization of ultrafine Pt nanoparticles by Co/NC solid ligands, Pt_x/Co can even be a promising substitute for commercial Pt/C for practical applications.

Original language	English (US)
Pages (from-to)	25766-25770
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	60
Issue number	49
DOIs	https://doi.org/10.1002/anie.202111920
State	Published - Dec 1 2021

Bibliographical note

Funding Information:
This work was supported by the National Natural Science Foundation of China (21931005, 21720102002, and 22071146), Shanghai Science and Technology Committee (19JC1412600 and 20520711600), the SJTU‐MPI partner group and Center of Hydrogen Science, Shanghai Jiao Tong University, China.

Publisher Copyright:
© 2021 Wiley-VCH GmbH

Keywords

heterogeneous catalysis
hydrogen evolution
Schottky barrier
ultrafine Pt nanoparticles

ASJC Scopus subject areas

Catalysis
General Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/anie.202111920

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Sun, L. H., Li, Q. Y., Zhang, S. N., Xu, D., Xue, Z. H., Su, H., Lin, X., Zhai, G. Y., Gao, P., Hirano, S. I., Chen, J. S., & Li, X. H. (2021). Heterojunction-Based Electron Donators to Stabilize and Activate Ultrafine Pt Nanoparticles for Efficient Hydrogen Atom Dissociation and Gas Evolution. Angewandte Chemie - International Edition, 60(49), 25766-25770. https://doi.org/10.1002/anie.202111920

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abstract = "Platinum (Pt) is the most effective bench-marked catalyst for producing renewable and clean hydrogen energy by electrochemical water splitting. There is demand for high HER catalytic activity to achieve efficient utilization and minimize the loading of Pt in catalysts. In this work, we significantly boost the HER mass activity of Pt nanoparticles in Ptx/Co to 8.3 times higher than that of commercial Pt/C by using Co/NC heterojunctions as a heterogeneous version of electron donors. The highly coupled interfaces between Co/NC and Pt metal enrich the electron density of Pt nanoparticles to facilitate the adsorption of H+, the dissociation of Pt−H bonds and H2 release, giving the lowest HER overpotential of 6.9 mV vs. RHE at 10 mA cm−2 in acid among reported HER electrocatalysts. Given the easy scale-up synthesis due to the stabilization of ultrafine Pt nanoparticles by Co/NC solid ligands, Ptx/Co can even be a promising substitute for commercial Pt/C for practical applications.",

keywords = "heterogeneous catalysis, hydrogen evolution, Schottky barrier, ultrafine Pt nanoparticles",

author = "Sun, {Lu Han} and Li, {Qi Yuan} and Zhang, {Shi Nan} and Dong Xu and Xue, {Zhong Hua} and Hui Su and Xiu Lin and Zhai, {Guang Yao} and Peng Gao and Hirano, {Shin Ichi} and Chen, {Jie Sheng} and Li, {Xin Hao}",

note = "Funding Information: This work was supported by the National Natural Science Foundation of China (21931005, 21720102002, and 22071146), Shanghai Science and Technology Committee (19JC1412600 and 20520711600), the SJTU‐MPI partner group and Center of Hydrogen Science, Shanghai Jiao Tong University, China. Publisher Copyright: {\textcopyright} 2021 Wiley-VCH GmbH",

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Sun, LH, Li, QY, Zhang, SN, Xu, D, Xue, ZH, Su, H, Lin, X, Zhai, GY, Gao, P, Hirano, SI, Chen, JS & Li, XH 2021, 'Heterojunction-Based Electron Donators to Stabilize and Activate Ultrafine Pt Nanoparticles for Efficient Hydrogen Atom Dissociation and Gas Evolution', Angewandte Chemie - International Edition, vol. 60, no. 49, pp. 25766-25770. https://doi.org/10.1002/anie.202111920

TY - JOUR

T1 - Heterojunction-Based Electron Donators to Stabilize and Activate Ultrafine Pt Nanoparticles for Efficient Hydrogen Atom Dissociation and Gas Evolution

AU - Sun, Lu Han

AU - Li, Qi Yuan

AU - Zhang, Shi Nan

AU - Xu, Dong

AU - Xue, Zhong Hua

AU - Su, Hui

AU - Lin, Xiu

AU - Zhai, Guang Yao

AU - Gao, Peng

AU - Hirano, Shin Ichi

AU - Chen, Jie Sheng

AU - Li, Xin Hao

N1 - Funding Information: This work was supported by the National Natural Science Foundation of China (21931005, 21720102002, and 22071146), Shanghai Science and Technology Committee (19JC1412600 and 20520711600), the SJTU‐MPI partner group and Center of Hydrogen Science, Shanghai Jiao Tong University, China. Publisher Copyright: © 2021 Wiley-VCH GmbH

PY - 2021/12/1

Y1 - 2021/12/1

N2 - Platinum (Pt) is the most effective bench-marked catalyst for producing renewable and clean hydrogen energy by electrochemical water splitting. There is demand for high HER catalytic activity to achieve efficient utilization and minimize the loading of Pt in catalysts. In this work, we significantly boost the HER mass activity of Pt nanoparticles in Ptx/Co to 8.3 times higher than that of commercial Pt/C by using Co/NC heterojunctions as a heterogeneous version of electron donors. The highly coupled interfaces between Co/NC and Pt metal enrich the electron density of Pt nanoparticles to facilitate the adsorption of H+, the dissociation of Pt−H bonds and H2 release, giving the lowest HER overpotential of 6.9 mV vs. RHE at 10 mA cm−2 in acid among reported HER electrocatalysts. Given the easy scale-up synthesis due to the stabilization of ultrafine Pt nanoparticles by Co/NC solid ligands, Ptx/Co can even be a promising substitute for commercial Pt/C for practical applications.

AB - Platinum (Pt) is the most effective bench-marked catalyst for producing renewable and clean hydrogen energy by electrochemical water splitting. There is demand for high HER catalytic activity to achieve efficient utilization and minimize the loading of Pt in catalysts. In this work, we significantly boost the HER mass activity of Pt nanoparticles in Ptx/Co to 8.3 times higher than that of commercial Pt/C by using Co/NC heterojunctions as a heterogeneous version of electron donors. The highly coupled interfaces between Co/NC and Pt metal enrich the electron density of Pt nanoparticles to facilitate the adsorption of H+, the dissociation of Pt−H bonds and H2 release, giving the lowest HER overpotential of 6.9 mV vs. RHE at 10 mA cm−2 in acid among reported HER electrocatalysts. Given the easy scale-up synthesis due to the stabilization of ultrafine Pt nanoparticles by Co/NC solid ligands, Ptx/Co can even be a promising substitute for commercial Pt/C for practical applications.

KW - heterogeneous catalysis

KW - hydrogen evolution

KW - Schottky barrier

KW - ultrafine Pt nanoparticles

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M3 - Article

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SN - 1433-7851

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SP - 25766

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ER -

Heterojunction-Based Electron Donators to Stabilize and Activate Ultrafine Pt Nanoparticles for Efficient Hydrogen Atom Dissociation and Gas Evolution

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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