Constructing Pt and Pt/MoC Co‐Anchored on Nitrogen‐Doped Carbon Toward Excellent Methanol‐Resilient Oxygen Reduction Performance for Zinc‐Air Batteries. Issue 1 (20th October 2022)

• Record Type: Journal Article
• Authors: Wang, Xuhong; Gong, Xinyi; Hu, Lulu; Fan, Jicong; Chen, Renhui; Jia, Yuhang; Cheng, Yafei; Jiang, Binbin; Geng, Hongbo
• Is Part Of: ChemNanoMat. Volume 9:Issue 1(2023)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-10-20
• Subjects: Dual active sites -- low-Pt catalysts -- oxygen reduction reaction -- synergistic effect -- zinc-air battery; Nanochemistry -- Periodicals; Nanostructured materials -- Periodicals; Nanochemistry; Nanostructured materials; Periodicals; 541.2
• DOI: 10.1002/cnma.202200365
• Languages: English
• ISSNs: 2199-692X

Abstract

Abstract: Drastically lowering the usage of platinum while enhancing activity and stability toward oxygen reduction is critical to promoting energy conversion efficiency in metal‐air batteries. Herein, an efficient oxygen reduction catalyst was rationally designed by constructing ultrasmall Pt and Pt/MoC dual active sites co‐anchored on nitrogen‐doped carbon. Owing to the synergistic effect of the dual active sites, the optimized Pt‐MoC@NC delivers superior oxygen reduction activity with ultralow Pt loading. Especially, the Pt‐MoC@NC shows robust methanol tolerance. As the cathodic catalyst, Pt‐MoC@NC based zinc‐air battery possesses outstanding performance with a large peak power density of 100 mW cm −2 and long charge‐discharge durability. Abstract : An oxygen reduction catalyst of Pt and Pt/MoC dual active sites supported on nitrogen‐doped carbon was designed. The synergistic effect of the dual active sites, which is beneficial for facilitating mass transfer, endows Pt‐MoC@NC with superior ORR properties.