Electrocatalytic hydrogen evolution performance of RuO2 nanorods grown on top of WO3 nanotube arrays DOI
Man Zhang,

Jingxiao Ren,

Kefeng Wang

et al.

Published: April 3, 2025

Abstract Water electrolysis has been deemed as a simple, safe, and clean way to realize sustainable hydrogen production. However, efficacious water for production is highly dependent on efficient stable electrocatalysts. Herein, we report nanorod/nanotube array composite electrocatalyst toward evolution reaction (HER) in both basic acidic electrolytes. For the composite, One-dimensional RuO2 nanorods (NRs) were grown top of WO3 nanotube arrays (NTA) through facile solution impregnation method followed by high-temperature calcination. The obtained NRs/WO3 NTA demonstrates superb electrocatalytic activity HER medias. To achieve current density 10 mA cm− 2, required overpotentials are 33 mV 1 M KOH 62 0.5 H2SO4, respectively. Furthermore, also shows an excellent long-term electrochemical stability alkaline superior most reported RuO2-based Ru-based electrocatalysts, even comparable state-of-the-art Pt/C catalyst. could be attributed structural merits including large surface area with abundant catalytically active sites, specific charge transport channel ensuring enhanced kinetics favorable bubble formation release. present work sheds new light designing novel one-dimensional structures generation. Simultaneously, designed structure this expected applied other energy conversion devices.

Language: Английский

Electrocatalytic hydrogen evolution performance of RuO2 nanorods grown on top of WO3 nanotube arrays DOI
Man Zhang,

Jingxiao Ren,

Kefeng Wang

et al.

Published: April 3, 2025

Abstract Water electrolysis has been deemed as a simple, safe, and clean way to realize sustainable hydrogen production. However, efficacious water for production is highly dependent on efficient stable electrocatalysts. Herein, we report nanorod/nanotube array composite electrocatalyst toward evolution reaction (HER) in both basic acidic electrolytes. For the composite, One-dimensional RuO2 nanorods (NRs) were grown top of WO3 nanotube arrays (NTA) through facile solution impregnation method followed by high-temperature calcination. The obtained NRs/WO3 NTA demonstrates superb electrocatalytic activity HER medias. To achieve current density 10 mA cm− 2, required overpotentials are 33 mV 1 M KOH 62 0.5 H2SO4, respectively. Furthermore, also shows an excellent long-term electrochemical stability alkaline superior most reported RuO2-based Ru-based electrocatalysts, even comparable state-of-the-art Pt/C catalyst. could be attributed structural merits including large surface area with abundant catalytically active sites, specific charge transport channel ensuring enhanced kinetics favorable bubble formation release. present work sheds new light designing novel one-dimensional structures generation. Simultaneously, designed structure this expected applied other energy conversion devices.

Language: Английский

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