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6975416 
Journal Article 
Effect of Promoter on the Ni-Al Alloy & the Corresponding Raney-Ni Catalyst and Hydrogenation Performance of 1,4-Butylenediol 
Gao Xian-Long; Mo Wen-Long; Ma Feng-Yun; Fan Xing; , 
2020 
Yes 
Chinese Journal of Inorganic Chemistry / Wu Ji Hua Xue Xue Bao
ISSN: 1001-4861 
CHINESE CHEMICAL SOC 
BEIJING 
958-968 
WOS:000539209200022 
Three promoters (MgO, CuO, Co2O3) were introduced individually into the commercial Ni-Al alloy powder by impregnation method, and the modified alloys were leached by 10%(w/w) NaOH solution to prepare Raney-Ni catalysts. Effect of promoter on the elemental composition, crystal structure, pore structure, surface morphology and surface acidity of the Ni-Al alloy and the corresponding Raney-Ni catalyst was investigated by energy dispersive X-ray (EDX), X-ray diffraction (XRD), N-2 adsorption-desorption, transmission electron microscope (TEM), NH3 temperature programmed desorption (NH3-TPD) and X-ray photoelectron spectroscopy (XPS) methods. Results showed that the element content, specific surface area and surface morphology of the catalyst modified by different promoter proposed significant difference. Large amount of Ni- the active component on the Cu-modified catalyst was detected with the content of about 90% (w/w), showing excellent dispersion, and the catalyst presented small average pore size (3.87 nm). Evaluation results showed that the catalyst displayed well hydrogenation performance, with 1,4-butenediol (BED) conversion of 100%, both 1,4-butanediol (BDO) selectivity and yield of 59.62%, which was related to the high Ni content, the moderate amount of acid sites and the small Cu crystal for improving Ni dispersion without serious sintering by the "confinement effect".