Facile synthesis of Pd-Ru-P ternary nanoparticle networks with enhanced electrocatalytic performance for methanol oxidation. (20th April 2017)

• Record Type: Journal Article
• Authors: Xu, Hui; Yan, Bo; Zhang, Ke; Wang, Caiqin; Zhong, Jiatai; Li, Shumin; Yang, Ping; Du, Yukou
• Is Part Of: International journal of hydrogen energy. Volume 42:Number 16(2017)
• Page Start: 11229
• Page End: 11238
• Publication Date: 2017-04-20
• Subjects: Pd-Ru-P network -- Direct methanol fuel cells -- Electrocatalytic oxidation -- Nonmetal phosphorous; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2017.03.023
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: Liquid fuel cells have attracted broad research interests for past several decades, especially for direct methanol fuel cells (DMFCs) because of their compact volume, environmentally benign and easy storage. Exploring cost-effective electrocatalysts toward methanol electrooxidation is meaningful for the development of (DMFCs). Herein, a series of PdRu/P network catalysts have been fabricated and modified via a facile and reproducible method taking benzyl alcohol, hydrazine hydrate as solvent and reducing agents, respectively. Profiting from the 3D network structure, the synergistic effect together with the increased electron mobility induced by the addition of nonmetal phosphorous (P). The PdRu/P catalysts display markedly improved efficient electrocatalytic activity with excellent current peak, more negative onset potential, as well as superior long-term stability compared to commercial Pd/C, PdRu and Pd/P prepared under the same condition. In this work, we highlight the effect of the incorporation of nonmetals P on the electrocatalytic performance of PdRu binary catalysts, which will contribute to broadening the application of nonmetal P or even for other nonmetals for electrooxidation. Our efforts will dedicate to accelerating the commercialization of efficient and stable anode catalysts in fuel cells by means of doping transition metals or nonmetals into Pd. Highlights: The Pd-Ru-P network catalysts are fabricated under mild reaction conditions. The prepared Pd-Ru-P catalysts show excellent catalytic activity. Electronic effects and efficient mass transfer enhance the catalytic performances. The Pd-Ru-P networks reveal promising candidates for further application in DMFCs.