新型炭材料Issue(2)：81-88,8.
3D二硫化钼/石墨烯组装体的制备及其催化脱硫性能
Fabrication of three-dimensional MoS2-graphene hybrid monoliths and their catalytic performance for hydrodesulfurization
摘要
Abstract
A simple process to synthesize three-dimensional molybdenum disulfide-graphene monolithic catalysts (3D-MoS2-G) was developed. 3D-MoS2-G hybrid monoliths were fabricated by a combined hydrothermal self-assembly and freeze-drying treat-ment, in which ammonium tetrathiomolybdate and graphite oxide were used as starting materials. The structure and morphology of the samples were characterized by X-ray diffraction, Fourier transform infrared spectrometry, Raman spectrometry, field emission scanning electron microscopy, transmission electron microscopy and nitrogen adsorption. The catalytic performance of the hybrid monoliths was investigated by evaluating the activity for the hydrodesulfurization ( HDS) of carbonyl sulfide ( COS) . In addition, the influence of microwave irradiation on the catalytic property of the 3D-MoS2-G monoliths was also investigated. It is demonstra-ted that after microwave irradiation the 3D-MoS2-G monoliths show an excellent activity for COS hydrogenation compared with the traditional MoS2/γ-Al2 O3 catalyst prepared by impregnation-sulfidation. The 3D-MoS2-G-160M monolith hydrothermally synthe-sized at 160℃ exhibits the highest COS conversion of 100% at a relatively low temperature (260℃) for the HDS reaction. The su-perior performance of the 3D-MoS2-G-160M catalyst can be ascribed to the unique hybridized structure of the MoS2 nanoparticles u-niformly dispersed on graphene sheets in the monolith.关键词
石墨烯/组装体催化剂/二硫化钼/羰基硫/加氢脱硫Key words
Graphene/Monolithic catalyst/Molybdenum disulfide/Carbonyl sulfide/Hydrodesulfurization分类
化学化工引用本文复制引用
王旭珍,刘宁,胡涵,王新平,邱介山..3D二硫化钼/石墨烯组装体的制备及其催化脱硫性能[J].新型炭材料,2014,(2):81-88,8.基金项目
国家自然科学基金(21176043) （21176043）
中国科学院山西煤炭化学研究所煤转化国家重点实验室开放基金(11-12-102).@@@@National Natural Science Foundation of China (21176043) （11-12-102）
the Open Fund of State Key Laboratory of Coal Con-version, Institute of Coal Chemistry, Chinese Academy of Sciences (11-12-102) （11-12-102）
