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技术优势

The nanoparticle based catalyst:ΓÇóComprises a core-shell structure containing alloys of Pt, Au & Ru, wherein Pt serves as catalyst, Ru prevents CO poisoning, and Au prevents dissolution of Pt and RuΓÇóIs much more efficient for electro-oxidation of methanol as compared to previously used onesΓÇóIs prepared using sequential micro-emulsion method, which allows for a selective control over particle growth and sizeΓÇóWould be commercially useful for an enhanced industrialization of direct-methanol fuel cells (promising energy source for portable devices)

详细技术说明

None

*Abstract

PtRu alloy catalyst has been a state-of-the-art anodic catalyst for electro-oxidation in case of direct methanol fuel cells. However, this catalyst is associated with a common problem of metallic component dissolution which further results in severe detrimental effects such as decayed anodic activity and increased resistance. Many more efforts have been made to overcome this problem by using ternary and quaternary alloy nanoparticles such as PtRuNi and PtRuRhNi. However, the problem still persists. This novel approach enables preparation of a structurally advanced and ultra-stable nanoparticle based catalyst for methanol electro-oxidation, overcoming most prior-art limitations.

*Principal Investigation

Name: Qinggang He

Department:

Name: Sanjeev Mukerjee

Department:

Name: Nagappan Ramaswamy

Department:

国家/地区

美国