Yang Bin, Ding Xinyao, Feng Lifeng, Zhang Mingyi
Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, China.
Molecules. 2024 Aug 17;29(16):3892. doi: 10.3390/molecules29163892.
The development of efficient and cost-effective electrocatalysts is crucial for achieving a green hydrogen economy through electrocatalytic water splitting. Herein, we report an excellent catalyst, one-dimensional NiS/NiS/MnO nanofibers prepared by electrospinning, which exhibits outstanding electrochemical performance in an alkaline solution. We explored effective strategies to construct one-dimensional nanostructures and composite oxides to promote the electrocatalytic performance of transition metal dichalcogenides. At a current density of 20 mA cm, it requires an overpotential of 333 mV for OER. Furthermore, NiS/NiS/MnO nanofibers maintain good durability even after 1000 cycles. The long-term electrochemical stability test of the catalyst NiS/NiS/MnO was implemented at 20 mA cm for 12 h. The potential remained at 99.52%. Therefore, this study demonstrates that NiS/NiS/MnO can serve as a viable green hydrogen production electrocatalyst.
开发高效且具有成本效益的电催化剂对于通过电催化水分解实现绿色氢能经济至关重要。在此，我们报道了一种出色的催化剂，即通过静电纺丝制备的一维NiS/NiS/MnO纳米纤维，其在碱性溶液中表现出卓越的电化学性能。我们探索了构建一维纳米结构和复合氧化物的有效策略，以促进过渡金属二硫属化物的电催化性能。在电流密度为20 mA cm时，OER需要333 mV的过电位。此外，即使经过1000次循环，NiS/NiS/MnO纳米纤维仍保持良好的耐久性。在20 mA cm下对催化剂NiS/NiS/MnO进行了12小时的长期电化学稳定性测试。电位保持在99.52%。因此，本研究表明NiS/NiS/MnO可作为一种可行的绿色制氢电催化剂。
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