Nature of PH3 Decomposition Reaction over CoB and CoBP Alloys Supported on Carbon Nanotubes

作者：Baogui Zhang · 发表于：Journal of Tianjin University Science and Technology · 年份：2011 · 被引用次数：1 · 研究领域：Hydrogen Storage and Materials、Fusion materials and technologies、Catalytic Processes in Materials Science

Amorphous CoB/CNTs and CoBP/CNTs alloys with a range of molar ratios of P to(B+P)were synthesized by means of induced chemical reduction method and evaluated as catalysts for PH3 decomposition.The catalysts were characterized using a number of analytical instrumentations including high-resolution transmission electron microscopy(HRTEM),X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),surface area measurement(BET) and inductively coupled plasma(ICP).The relationship between catalytic activities and physicochemcial and electronic properties of the catalysts was investigated.Results show that only CoP phase is formed on the CoBP/CNTs and it is found to be the more active phase for this reaction,whereas Co phase is formed on CoB/CNTs besides CoP phase;CoBP/CNTs have higher activities than CoB/CNTs and a maximum in activity is observed for CoBP/CNTs catalysts with molar ratio of P to(B+P) being 0.43.