燃料化学学报2017，Vol.45Issue(2)：172-181,10.
氮化SBA-16负载镍基催化剂的制备及其对甲烷二氧化碳重整反应的催化性能
Synthesis of Ni-based catalysts supported on nitrogen-incorporated SBA-16 and their catalytic performance in the reforming of methane with carbon dioxide
摘要
Abstract
SBA-16 molecular sieve was synthesized by soft template method and modified with ammonia under high temperature to obtain the nitrogen-incorporated SBA-16 ( SBA-16-N);with SBA-16 and SBA-16-N as the supports, nickel based catalysts ( Ni/SBA-16 and Ni/SBA-16-N) were prepared by the incipient impregnation method. The related supports and Ni-based catalysts were characterized by transmission electron microscope, X-ray photoelectron spectroscopy, nitrogen physisorption, carbon dioxide temperature programmed desorption, X-ray diffraction and thermogravimetric analysis;the catalytic performance of Ni/SBA-16 and Ni/SBA-16-N in the reforming of methane with carbon dioxide was comparatively investigated under 500-800 ℃. The results indicate that after the nitriding modification, the Ni/SBA-16-N catalyst exhibits much higher activity in methane reforming with CO2 and higher selectivity to syngas than the Ni/SBA-16 catalyst without nitridation treatment. During the nitriding modification at high temperature, O atoms in the SBA-16 skeleton are partially replaced by N atoms, which can strengthen the support basicity and the interaction between the support and the nickel nanoparticles. All these may promote the dispersion of nickel nanoparticles on SBA-16-N and the adsorption of CO2 on Ni/SBA-16-N, leading to the improvement of the activity and stability of the Ni/SBA-16-N catalysts in methane reforming with carbon dioxide.关键词
甲烷重整/二氧化碳/氮化/SBA-16/镍基催化剂Key words
methane reforming/carbon dioxide/nitridation/SBA-16/nickel based catalyst分类
化学化工引用本文复制引用
霍苗苗,李琳,赵欣,张煜华,李金林..氮化SBA-16负载镍基催化剂的制备及其对甲烷二氧化碳重整反应的催化性能[J].燃料化学学报,2017,45(2):172-181,10.基金项目
The project was supported by the National Natural Science Foundation of China (21403304).国家自然科学基金(21403304)资助 （21403304）
