Enhancing Hydrogen Generation by Anodic Oxidation of Urea over Superb Hydrophilic Hierarchical Ni, S co-Doped Co₃(PO₄)₂ Nanosheets.

IF 3.3 3区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemistry - An Asian Journal Pub Date : 2025-06-13 DOI:10.1002/asia.202500608

Yurun Tong, Yuyang Liu, Yijie Zhong, Weitao Wang, JunChao Lou, Jing Zhang, Yating Wan, Enlai Hu

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引用次数: 0

Abstract

Surface wettability are of great significance to electrocatalysts for various electrochemical reaction. In this work, Ni, S co-doped Co₃(PO₄)₂ nanosheets on Ni foam (Ni-S-Co₃(PO₄)₂ NSs) with high hydrophilicity and hierarchical structure are synthesized. The doping of S is the key factor to achieve an ultrahigh hydrophilic surface, identified by the contact angle measurement. As except, the as-prepared Ni-S-Co₃(PO₄)₂ NSs display prominent activity for urea oxidation reaction (UOR), which reach the current density of 10 mA cm^-2 at a low potential of 1.28 V (vs. reversible hydrogen electrode, RHE) with excellent stability. Remarkably, when paired with Ni-Mo electrode to fabricate overall urea electrocatalysis device, a cell potential of mere 1.33 V is required to afford the current density of 10 mA cm^-2, making the Ni-S-Co₃(PO₄)₂ NSs an outstanding UOR electrocatalyst for efficient hydrogen production.

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超亲水性层次化Ni， S共掺杂Co3(PO4)2纳米片阳极氧化尿素增强产氢

表面润湿性对各种电化学反应的电催化剂具有重要意义。本文在Ni泡沫（Ni-S-Co3(PO4)2 NSs）上合成了具有高亲水性和层次化结构的Ni， S共掺杂Co3(PO4)2纳米片。S的掺杂是实现超高亲水性表面的关键因素，可通过接触角测量来识别。此外，制备的Ni-S-Co3(PO4)2 NSs在尿素氧化反应（UOR）中表现出突出的活性，在1.28 V的低电位下（相对于可逆氢电极，RHE），其电流密度达到10 mA cm-2，具有优异的稳定性。值得注意的是，当与Ni-Mo电极配对制作整体尿素电催化装置时，仅需1.33 V的电池电位即可提供10 mA cm-2的电流密度，使Ni-S-Co3(PO4)2 NSs成为一种出色的高效产氢UOR电催化剂。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemistry - An Asian Journal 化学-化学综合

CiteScore

7.00

自引率

2.40%

发文量

535

审稿时长

1.3 months

期刊介绍： Chemistry—An Asian Journal is an international high-impact journal for chemistry in its broadest sense. The journal covers all aspects of chemistry from biochemistry through organic and inorganic chemistry to physical chemistry, including interdisciplinary topics. Chemistry—An Asian Journal publishes Full Papers, Communications, and Focus Reviews. A professional editorial team headed by Dr. Theresa Kueckmann and an Editorial Board (headed by Professor Susumu Kitagawa) ensure the highest quality of the peer-review process, the contents and the production of the journal. Chemistry—An Asian Journal is published on behalf of the Asian Chemical Editorial Society (ACES), an association of numerous Asian chemical societies, and supported by the Gesellschaft Deutscher Chemiker (GDCh, German Chemical Society), ChemPubSoc Europe, and the Federation of Asian Chemical Societies (FACS).