Black Phosphorus Modulated Ru Electrocatalyst for Highly Efficient and Durable Seawater Splitting
Black Phosphorus Modulated Ru Electrocatalyst for Highly Efficient and Durable Seawater Splitting
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DOI：
10.1002/aenm.202302727
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发表时间：
2023-10
影响因子：
27.8
通讯作者：
Huanhuan Yang;Xin Wang;Shini Xia;Shumeng Zhang;Rong Zhang;Xinxin Li;Xue-Feng Yu;Xue Zhang;Licheng Bai
中科院分区：
文献类型：
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作者：
Huanhuan Yang;Xin Wang;Shini Xia;Shumeng Zhang;Rong Zhang;Xinxin Li;Xue-Feng Yu;Xue Zhang;Licheng Bai
电化学水分解是一种有潜力的生产清洁可再生氢能的方法。这种能源的广泛利用取决于是否有充足和容易获得的水源。然而，尽管具有显著的发展前景，但海水直接分解存在杂质、预处理复杂、反应过程等问题，阻碍了海水电解作为制氢手段的高效实施。本文描述了一种通过Ru和黑磷（BP）之间快速形成Ru─P键来调节Ru表面电子结构的策略，从而优化析氢反应（HER）中的电化学活性。通过调整BP量，BPed - Ru - Gr的HER价格活性比原始Ru - Gr和1.0 m KOH下的商业Pt/C基准分别提高了3.8倍和10.4倍。此外，BPed - Ru - Gr在碱性海水中也表现出较高的HER稳定性和活性。经过1000次循环后，BPed - Ru - Gr的价格活性超过了目前最先进的Pt/C的价格活性13.0倍。研究揭示了BP在HER中对Ru和Pt金属催化剂的耐海洋腐蚀性能，表明其具有抵抗碱性海水中Cl离子腐蚀的能力。
Electrochemical water splitting presents a potential method for generating clean and renewable hydrogen energy. The extensive utilization of such energy depends on the availability of abundant and easily accessible sources of water. However, despite the significant development prospects, direct seawater decomposition is hindered by the presence of impurities, intricate pretreatment, and reaction process, etc, which hinders the efficient implementation of seawater electrolysis as a means of hydrogen production. Herein, a strategy is described to modulate the Ru surface electronic structure through rapid formation of Ru─P bonds between Ru and black phosphorus (BP), thereby optimizing the electrochemical activity in the hydrogen evolution reaction (HER). By adjusting the amount of BP, the HER price activity of BPed‐Ru‐Gr exhibits a remarkable increase of 3.8‐fold and 10.4‐fold compared with the original Ru‐Gr and the benchmark of commercial Pt/C in 1.0 m KOH. Furthermore, BPed‐Ru‐Gr also demonstrates high HER stability and activity in alkaline seawater. The price activity of BPed‐Ru‐Gr exceeds that of the state‐of‐the art Pt/C by a factor of 13.0 after 1000 cycles. The research reveales the marine corrosion resistance of BP on Ru and Pt metal catalysts in the HER, demonstrating its ability to resist the corrosion of Cl ions in alkaline seawater.