Wang Xiang, Li Juan, Wu Tao
College of New Energy Materials and Chemistry, Leshan Normal University, Leshan 614000, China.
Leshan West Silicon Materials Photovoltaic and New Energy Industry Technology Research Institute, Leshan 614000, China.
Nanomaterials (Basel). 2025 Aug 1;15(15):1186. doi: 10.3390/nano15151186.
Highly efficient and stable non-Pt-based electrocatalysts for oxygen reduction reactions (ORRs) are highly desirable in energy conversion and storage systems. Herein, we report a hydrothermally synthesized metal chalcogenide cluster-based framework (NCF-3-Mn), which is decorated with transition metal complexes ([Mn(TEPA)], TEPA = tetraethylenepentamine), for an electrocatalytic O reduction reaction (ORR). Benefitting from the abundant Mn-S bonds and Mn-N-C structures in NCF-3-Mn, it was found that NCF-3-Mn displayed a high onset potential (0.90 V) and an efficient four-electron transfer reaction pathway, which are much better than those of its analogue framework (T2-GaSbS). Moreover, NCF-3-Mn also exhibited a considerable long-term stability and methanol resistance toward ORRs. This work will present new opportunities for exploring the utilization of chalcogenide frameworks as novel non-Pt electrocatalysts for ORRs.
在能量转换和存储系统中，非常需要用于氧还原反应（ORR）的高效且稳定的非铂基电催化剂。在此，我们报道了一种水热合成的基于金属硫族化物簇的框架（NCF-3-Mn），其用过渡金属配合物（[Mn(TEPA)]，TEPA = 四乙烯五胺）修饰，用于电催化氧还原反应（ORR）。受益于NCF-3-Mn中丰富的Mn-S键和Mn-N-C结构，发现NCF-3-Mn表现出高起始电位（0.90 V）和有效的四电子转移反应途径，这比其类似框架（T2-GaSbS）要好得多。此外，NCF-3-Mn对ORR还表现出相当的长期稳定性和抗甲醇性。这项工作将为探索硫族化物框架作为用于ORR的新型非铂电催化剂的应用提供新的机会。
