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煅烧温度和还原温度对Ni-P/SiO₂及Ni-P/Al₂O₃性质及其加氢脱氮性能的影响。

Effects of calcination and reduction temperature on the properties of Ni-P/SiO and Ni-P/AlO and their hydrodenitrogenation performance.

作者信息

Shao Mingqiang, Cui Haitao, Guo Shaoqing, Zhao Liangfu, Tan Yisheng

机构信息

Institute of Coal Chemistry, Chinese Academy of Sciences Taiyuan 030001 People's Republic of China

Graduate University of the Chinese Academy of Sciences Beijing 100039 People's Republic of China.

出版信息

RSC Adv. 2018 Feb 12;8(13):6745-6751. doi: 10.1039/c7ra11907k. eCollection 2018 Feb 9.

DOI:10.1039/c7ra11907k
PMID:35540342
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9078368/
Abstract

A series of SiO-supported and γ-AlO-supported nickel phosphides were prepared by temperature-programmed reduction (TPR) with different calcination and reduction temperatures. The prepared catalysts were characterized by XRD, BET, H-TPR, CO titration and HRTEM. The crystal phase and CO uptake content were influenced by calcination and reduction temperature. The catalytic performance of various catalysts was tested in quinoline hydrodenitrogenation and exhibited considerable differences. The quinoline HDN activity of SiO-supported nickel phosphides decreases with increase of calcination and reduction temperature. In contrast to SiO-supported samples, the ability to remove nitrogen of γ-AlO-supported samples increases with reduction temperature.

摘要

通过程序升温还原（TPR）法，在不同的煅烧温度和还原温度下制备了一系列二氧化硅负载和γ-氧化铝负载的磷化镍。采用X射线衍射（XRD）、比表面积测定（BET）、氢程序升温还原（H-TPR）、一氧化碳滴定和高分辨透射电子显微镜（HRTEM）对制备的催化剂进行了表征。煅烧温度和还原温度对晶相和一氧化碳吸附量有影响。在喹啉加氢脱氮反应中测试了各种催化剂的催化性能，结果显示出显著差异。二氧化硅负载的磷化镍的喹啉加氢脱氮活性随煅烧温度和还原温度的升高而降低。与二氧化硅负载的样品相反，γ-氧化铝负载的样品的脱氮能力随还原温度的升高而增强。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c37b/9078368/87cf4c793484/c7ra11907k-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c37b/9078368/c86f6775595b/c7ra11907k-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c37b/9078368/a9432cdb7045/c7ra11907k-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c37b/9078368/9e867a265a9f/c7ra11907k-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c37b/9078368/87cf4c793484/c7ra11907k-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c37b/9078368/c86f6775595b/c7ra11907k-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c37b/9078368/a9432cdb7045/c7ra11907k-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c37b/9078368/9e867a265a9f/c7ra11907k-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c37b/9078368/87cf4c793484/c7ra11907k-f3.jpg

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本文引用的文献

1
Desulfurization reactions on Ni2P(001) and alpha-Mo2C(001) surfaces: complex role of P and C sites.Ni2P(001)和α-Mo2C(001)表面的脱硫反应：P和C位点的复杂作用
J Phys Chem B. 2005 Mar 17;109(10):4575-83. doi: 10.1021/jp044301x.
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Mechanism of hydrodenitrogenation on phosphides and sulfides.磷化物和硫化物上的加氢脱氮机理。
J Phys Chem B. 2005 Feb 17;109(6):2109-19. doi: 10.1021/jp049194l.
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Catalysts for hydrogen evolution from the [NiFe] hydrogenase to the Ni2P(001) surface: the importance of ensemble effect.从[NiFe]氢化酶到Ni2P(001)表面析氢的催化剂：集合效应的重要性。
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