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Materials Research Express · 2020 ·Vol. 7 ·期 1 ·015506 · IF 1.929

Tungsten-decorated MoP nanobelts for boosted hydrogen production

Dezhi Wang,Yao Lu,Kangyan Lv,Zhuangzhi Wu

To further improve the electrochemical catalytic performance of MoP for hydrogen generation, a tungsten decoration strategy is proposed in this work, and the effect of preparation temperature was also investigated. It is found that the decoration of W can significantly enhance the electron transfer ability and increase the amount of active sites, and the optimized catalyst can be obtained at 700 °C over the Mo-W-P-700 catalyst, which exhibits the best catalytic performance with a small Tafel slope of 53 mV dec-1. This decoration strategy can be widely applied in other transition metal compounds to achieve further performance improvements.

研究领域: 材料科学 · 电化学

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ENERGY & FUELS · 2020 · IF 3.421

Effect of Tungsten Modification on Zirconium Phosphate-Supported Pt Catalyst for Selective Hydrogenolysis of Glycerol to 1-Propanol

Ruihan Luo,Xiuge Zhao,Honghui Gong,Wei Qian,Difan Li,Manyu Chen,Kai Cui,Jiajia Wang,Zhenshan Hou

Hydrogenolysis of glycerol to propanols is highly promising for the sustainable development of biomass refining. In this work, modified amorphous zirconium phosphate (ZrP)-supported Pt catalysts were developed and characterized thoroughly by X-ray diffraction, temperature-programmed desorption of ammonia, Fourier transform infrared spectra of adsorbed pyridine, temperature-programmed reduction, high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, and Brunauer–Emmett–Teller surface area. The as-obtained catalysts were employed for selective glycerol hydrogenolysis to 1-propanol (1-PO) in a fixed-bed reactor. Owing to the incorporation of WOx, both the total acidity and the dispersion of Pt nanoparticles were enhanced significantly. The Pt/7WOx-ZrP catalyst could afford 81% yield of 1-PO at full conversion of glycerol in a long-term catalytic stability test (at least 70 h reaction time) and was regenerated by calcination in air. The results of the catalytic activity test and catalyst characterization indicated that the acid sites of the catalysts promoted the selective dehydration of glycerol into acrolein, whereas the Pt sites facilitated H2 dissociation and a sequential hydrogenation of acrolein into 1-PO.

CAS / MDL: 71-36-3 10213-10-2

研究领域: 催化化学 · 可再生资源转化 · 材料科学

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Tungsten-decorated MoP nanobelts for boosted hydrogen production

Effect of Tungsten Modification on Zirconium Phosphate-Supported Pt Catalyst for Selective Hydrogenolysis of Glycerol to 1-Propanol