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Preparation and catalytic performances of ternary phosphides NiCoP for hydrazine decomposition

Paper ID Volume ID Publish Year Pages File Format Full-Text
41988 45906 2010 6 PDF Available
Title
Preparation and catalytic performances of ternary phosphides NiCoP for hydrazine decomposition
Abstract

A series of silica-supported catalysts, Ni2−xCoxPy/SiO2 (0.50 ≤ x ≤ 1.50, 1.00 ≤ y ≤ 2.00), were prepared by temperature-programmed reduction in hydrogen. The samples were characterized by BET surface area, X-ray diffraction (XRD), CO chemisorption and Fourier transform infrared (FT-IR) analyses. The activities of the ternary phosphides were evaluated in hydrazine decomposition. The results showed that both the Ni/Co ratios and the (Ni + Co)/P ratios had influences on the formation of NiCoP phosphide and activities for hydrazine decomposition. The best performance was found with the catalyst Ni1.00Co1.00P1.50/SiO2 over which hydrazine decomposed completely at room temperature. In comparison with binary phosphide Ni2P/SiO2 and CoP/SiO2, the ternary phosphide Ni1.00Co1.00P1.50/SiO2 exhibited a synergistic effect between Ni and Co, and this synergy can be well explained by the increased electron density of Co based on FT-IR of CO adsorption.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (112 K)Download as PowerPoint slideResearch highlights▶ A series of Ni2−xCoxP1.00–2.00/SiO2 ternary phosphides were prepared. ▶ Ni1.00Co1.00P1.50/SiO2 exhibited the best activity for hydrazine decomposition. ▶ The synergistic effect originates from the increased electron density of Co sites.

Keywords
Ternary; Phosphides; NiCoP; Hydrazine decomposition; Synergetic effect
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Preparation and catalytic performances of ternary phosphides NiCoP for hydrazine decomposition
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 385, Issues 1–2, 15 September 2010, Pages 232–237
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
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