Alloy-free amorphous Pt–B–P/C electrocatalyst for enhanced methanol electro-oxidation

• Main Authors: Poon, Kee Chun, Phan, Quoc Tuan, Vo-Doan, T. Thang, Lin, Ming, Sato, Hirotaka
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2022
• Subjects: Engineering::Mechanical engineering; Amorphous; Platinum
• Online Access: https://hdl.handle.net/10356/160321
• Institution: Nanyang Technological University

This study reports the first known demonstration of amorphous Pt–B–P/C achieved via electroless reduction without the need for additional unstable transition metals. The amorphous structure was induced by simultaneous dual doping of both B and P by electroless reduction of Pt ion solution using a simple and facile process at ambient conditions. Amorphous Pt–B–P/C exhibited superior specific, mass activity compared to both commercial PtRu/C and crystalline Pt–B–P/C. Durability and CO poisoning resistance were also found to be better. XPS and annealing results suggest that synergistic effect of both doping and amorphous structure of Pt–B–P/C led to its overall enhanced catalytic performance.