A novel and facile synthetic route to MMo (M = Ni or Co) bimetallic phosphides. (1st February 2020)

• Record Type: Journal Article
• Authors: Yao, Zhiwei; Dong, Meijun; Shi, Yan; Sun, Yue; Liu, Qingyou
• Is Part Of: Phosphorus, sulfur, and silicon and the related elements. Volume 195:Number 2(2020)
• Page Start: 165
• Page End: 172
• Publication Date: 2020-02-01
• Subjects: Bimetallic molybdenum phosphide -- NiMoP -- CoMoP -- hexamethylenetetramine -- formation mechanism; Sulfur compounds -- Periodicals; Organosulfur compounds -- Periodicals; Phosphorus compounds -- Periodicals; Organophosphorus compounds -- Periodicals; Silicon compounds -- Periodicals; Organosilicon compounds -- Periodicals; 546
• DOI: 10.1080/10426507.2019.1660657
• Languages: English
• ISSNs: 1042-6507

Abstract

Abstract: A novel and facile route to bimetallic molybdenum phosphides was described. Both NiMoP and CoMoP phosphides were successfully prepared by a hexamethylenetetramine (HMT) route. Mixed-salt precursors containing HMT, M-HMT (M = Ni, Co or Mo) complexes, MMo-HMT (M = Ni or Co) complexes and P-containing species can be directly converted to bimetallic molybdenum phosphides under a flow of Ar at 800 °C. It was proposed that the bimetallic phosphides were formed via two possible reaction pathways: (i) MMo-HMT complexes/P→MMoP (M = Ni or Co) and (ii) M-HMT (M = Ni, Co or Mo) complexes/P→M2 P/MoP→MMoP (M = Ni or Co). Additionally, it was found that the dispersions and surface areas of NiMoP and CoMoP prepared by HMT route were higher than those of corresponding bimetallic phosphides prepared by traditional H2 reduction method. Graphical Abstract: uf0001