Self-supported and integrated Co3Al-layered bimetallic hydroxide nanoribbons on nickel foam enable efficient electrocatalytic water decomposition

• 出版年: Electrochemistry Communications
• 主要な著者: Yan-Ming Jia, Fu Yang, Li-Juan Sun, Zhi-Yan Bai, Yu-Long Xie
• フォーマット: 論文
• 言語: 英語
• 出版事項: Elsevier 2025-04-01
• 主題: Non-precious metal electrocatalysts; HER; OER; Ni/Co3Al-LDH
• オンライン･アクセス: http://www.sciencedirect.com/science/article/pii/S1388248125000293
• ISSN: 1388-2481

The key to water decomposition in green hydrogen production is an electrode with high catalytic activity and stability. In this paper, a highly efficient integrated Ni/Co3Al-LDH/NF nanoribbon electrocatalyst was synthesized using a one-step hydrothermal strategy for total hydrolysis. Ni/Co3Al-LDH/NF exhibited excellent electrocatalytic performance in OER with a low overpotential (346 mV at 100 mA·cm−2 current output) and a small Tafel slope (38 mV·dec−1). In HER overpotential of 164 mV at 10 mA·cm−2 and a Tafel slope of 101 mV·dec−1 with excellent durability. The increase in activity can be attributed to the synergistic effect between the fine-tuning of the electronic structure provided by the nanoribbons and the electrochemically active surface provided by in situ growth.