Facile enhancement of the durability and CO tolerance of CB/PtRu by poly(2,5-benzimidazole) coating via in situ polymerization

Abstract

Here, we describe a facile method to enhance the stability of commercial CB/PtRu used in direct methanol fuel cells. In this work, 3,4-diaminobenzoic acid was in situ polymerized to form poly(2,5-benzimidazole) (ABPBI) on CB/PtRu particles. The experimental results indicated that the CO tolerance and stability of the CB/PtRu particles were enhanced when they were covered with ABPBI.