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Lattice Distorted Rhodium Nanocrystals in Porous Nanofiber toward Aqueous Zinc-CO2 System AITranslate

Yang Song; Yaobin Wang; Yunxia Zhao; Linlin Cheng; GaoFeng Han; Feng Li; Yunfei Bu
Nanjing University of Information Science and Technology (NUIST); Nanjing University of Information Science and Technology (NUIST); Nanjing University of Information Science and Technology (NUIST); Nanjing University of Information Science and Technology (NUIST); Jilin University; Fudan University; Nanjing University of Information Science and Technology (NUIST)
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Abstract AITranslate

Directly harvesting hydrogen from water represents a green solution toward low-cost, high-efficiency, and sustainable electrochemical energy transfer and storage. Herein, a unique approach to allow maximization of the intrinsic activity and hydrogen adsorption/desorption kinetics with engineering a lattice of rhodium (Rh) for an aqueous zinc-CO2 system is reported. The enlarged Rh–Rh bonding and lattice relaxation of Rh species cause improvement of the adsorption/desorption kinetics of H*, which can directly affect the hydrogen evolution reaction (HER). An ultralow overpotential of 6.8 mV is achieved at a current density of 10 mA cm–2 from the permanent lattice relaxed Rh under acidic conditions. In a practical application in the aqueous zinc-CO2 system, its stable hydrogen generation performance is better than that of the benchmark platinum/carbon system. This work might open opportunities for the design and engineering of electrocatalysts for high-efficiency conversion from electric energy to hydrogen energy.

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DOI：https://doi.org/10.1021/acsmaterialslett.3c00132

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Citation Information:

Directly harvesting hydrogen from water represents a green solution toward low-cost, high-efficiency, and sustainable electrochemical energy transfer and storage. Herein, a unique approach to allow maximization of the intrinsic activity and hydrogen adsorption/desorption kinetics with engineering a lattice of rhodium (Rh) for an aqueous zinc-CO2 system is reported. The enlarged Rh–Rh bonding and lattice relaxation of Rh species cause improvement of the adsorption/desorption kinetics of H*, which can directly affect the hydrogen evolution reaction (HER). An ultralow overpotential of 6.8 mV is achieved at a current density of 10 mA cm–2 from the permanent lattice relaxed Rh under acidic conditions. In a practical application in the aqueous zinc-CO2 system, its stable hydrogen generation performance is better than that of the benchmark platinum/carbon system. This work might open opportunities for the design and engineering of electrocatalysts for high-efficiency conversion from electric energy to hydrogen energy.

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GB/T 7714-2015 [1] Yang Song, Yaobin Wang, Yunxia Zhao, et al. ACS Materials Letters, 2023(5). DOI:10.1021/acsmaterialslett.3c00132.
MLA [1] Yang Song, et al., ACS Materials Letters, no. 5, 2023, https://doi.org/10.1021/acsmaterialslett.3c00132.
APA [1] Yang Song, Yaobin Wang, Yunxia Zhao, Linlin Cheng, GaoFeng Han, Feng Li, & Yunfei Bu. (2023). ACS Materials Letters(5). https://doi.org/10.1021/acsmaterialslett.3c00132
IEEE [1] Yang Song, Yaobin Wang, Yunxia Zhao, Linlin Cheng, GaoFeng Han, Feng Li, and Yunfei Bu, ACS Materials Letters, no. 5, 2023, doi: 10.1021/acsmaterialslett.3c00132.