Zhang Jing, Xu Yuping, Lan Maowen, Wang Xiaodong, Fu Ning, Yang Zhenglong
Shanghai Key Laboratory of D & A for Metal-Functional Materials, School of Materials Science and Engineering, Tongji University, Shanghai 201804, P. R. China.
Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology & School of Physics Science and Engineering, Tongji University, Shanghai 200092, P. R. China.
Dalton Trans. 2022 Oct 4;51(38):14482-14490. doi: 10.1039/d2dt02138b.
Heteroatom-doped carbon catalysts are ideal to promote the kinetic process of the oxygen reduction reaction (ORR) due to their high energy conversion efficiency. Here, we report a series of catalysts obtained from CTF@MOF- ( = 15, 24, 33 wt%) by pyrolysis methods, in which CTFs served as C and N sources, and Ni-MOFs served as Ni and S sources. A CTF was supported on the surface of a MOF to prevent the collapse and aggregation of the CTF during pyrolysis. The electrocatalyst exhibited enhanced ORR activity in an alkaline medium, with and values being comparable to those of 20 wt% commercial Pt/C, and showed excellent durability and methanol resistance. This work provides new opportunities for CTF-derived carbon-based electrocatalysts to achieve high ORR performance.
由于具有高能量转换效率，杂原子掺杂的碳催化剂是促进氧还原反应（ORR）动力学过程的理想选择。在此，我们报告了一系列通过热解方法从CTF@MOF-（ = 15、24、33 wt%）获得的催化剂，其中CTF用作C和N源，Ni-MOF用作Ni和S源。一种CTF负载在MOF表面，以防止热解过程中CTF的坍塌和聚集。该电催化剂在碱性介质中表现出增强的ORR活性，其 和 值与20 wt%的商业Pt/C相当，并表现出优异的耐久性和抗甲醇性。这项工作为CTF衍生的碳基电催化剂实现高ORR性能提供了新的机会。
