ZHAO Yu, ZHANG Jiaxing, WANG Mingrui, et al. Research on preparation of Ni@Silicalite-1 catalyst and its catalytic performance in hydrogenation of CO2 to CH4 and CO. [J]. Low-carbon Chemistry and Chemical Engineering 48(5):38-45(2023)
DOI:
ZHAO Yu, ZHANG Jiaxing, WANG Mingrui, et al. Research on preparation of Ni@Silicalite-1 catalyst and its catalytic performance in hydrogenation of CO2 to CH4 and CO. [J]. Low-carbon Chemistry and Chemical Engineering 48(5):38-45(2023) DOI: 10.12434/j.issn.2097-2547.20230105.
Research on preparation of Ni@Silicalite-1 catalyst and its catalytic performance in hydrogenation of CO2 to CH4 and CO
Using zeolite-encapsulated strategy, the Ni-based catalysts with controllable structure was synthesized for the hydrogenation of CO,2, to selectively obtain CH,4, or CO. SiO,2, nanospheres and silicalite-1 (S-1) zeolite molecular sieves were used as carriers to synthesize a series of Ni/X@S-1 catalysts with various Ni loadings by impregnation-recrystallization method (X is SiO,2, or S-1 zeolite molecular). SEM results show that S-1 molecular sieves as the carrier is conducive to the subsequent crystallization to form the S-1 cladding layer, and when the amount of template agent tetra-propylammonium hydroxide (TPAOH) added is low (,n,(TPAOH)/,n,(SiO,2,) = 0.1), the Ni-species could be encapsulated by S-1 zeolite molecular sieves, and the outer surface of encapsulated metal catalysts is flat, exhibiting a regular hexagonal plate morphology. Experimental results of macromolecules liquid phase hydrogenation and energy spectrum analysis reveal that the Ni species are mainly distributed inside S-1 zeolite molecular sieves. The results of in situ XRD and H,2,-TPR indicate that the encapsulation of S-1 zeolite molecular sieves effectively enhances the interaction between NiO and carriers, inhibit the reduction of NiO towards metallic Ni (Ni,0,), which is beneficial to stable NiO phases. The results of CO,2, hydrogenation indicate that without H,2, pre-reduction, the CO selectivity of the main active phase of NiO (N-5.0% Ni/S-1@S-1) is 96.4%. After 400 ℃ H,2, pre-reduction, the CH,4, selectivity of the main active phase of Ni,0, (R-5.0% Ni/S-1@S-1) is over 98.0%. NiO is the active phase for the formation of CO, while Ni,0, is the active phase for the formation of CH,4,. The valence composition of active Ni species can be well controlled by tuning pre-reduction temperature to realize the selective generation of hydrogenation products CO and CH,4,.
关键词
CO2加氢Ni基催化剂分子筛封装原位XRD活性结构
Keywords
CO2 hydrogenationNi-based catalystzeolite encapsulationin situ XRDactive structure
references
RA E C, KIM K Y, KIM E H, et al. Recycling carbon dioxide through catalytic hydrogenation: Recent key developments and perspectives [J]. ACS Catal, 2020, 10: 11318-11345.
WANG J Y, ZHANG G H, ZHU J, et al. CO2 hydrogenation to methanol over In2O3-based catalysts: From mechanism to catalyst development [J]. ACS Catal, 2021, 11: 1406-1423.
ZHANG Z T, SHEN C Y, SUN K H, et al. Advances in studies of the structural effects of supported Ni catalysts for CO2 hydrogenation: From nanoparticle to single atom catalyst [J]. J Mater Chem A, 2022, 10(11): 5792-5812.
ZHANG Q, GAO S Q, YU J H. Metal sites in zeolites: Synthesis, characterization, and catalysis [J]. Chem Rev, 2023, 123(9): 6039-6106.
WANG C T, GUAN E J, WANG L, et al. Product selectivity controlled by nanoporous environments in zeolite crystals enveloping rhodium nanoparticle catalysts for CO2 hydrogenation [J]. J Am Chem Soc, 2019, 141: 8482-8488.
YANG Y J, ZHANG J C, LIU J, et al. Nickel nanoparticles encapsulated in SSZ-13 cage for highly efficient CO2 hydrogenation [J]. Energy Fuels, 2021, 35(16): 13240-13248.
MIAO C, SHANG K X, LIANG L X, et al. Efficient and stable Ni/ZSM-5@MCM-41 catalyst for CO2 methanation [J]. ACS Sustain Chem Eng, 2022, 10: 12771-12782.
LIU M H, CHEN H A, CHEN C S, et al. Tiny Ni particles dispersed in platelet SBA-15 materials induce high efficiency for CO2 methanation [J]. Nanoscale, 2019, 11(43): 20741-20753.
HONGMANOROM P, ASHOK J, CHIRAWATKUL P, et al. Interfacial synergistic catalysis over Ni nanoparticles encapsulated in mesoporous ceria for CO2 methanation [J]. Appl Catal B, 2021, 297: 120454.
CHEN H H, GOODARZI F, MU Y B, et al. Effect of metal dispersion and support structure of Ni/silicalite-1 catalysts on non-thermal plasma (NTP) activated CO2 hydrogenation [J]. Appl Catal B, 2020, 272: 119013.
ZHANG B F, SONG M X, LIU H W, et al. Role of Ni species in ZnO supported on Silicalite-1 for efficient propane dehydrogenation [J]. Chinese J Chem Eng, 2022, 43(3): 240-247.
STÖBER W, FINK A, BOHN E. Controlled growth of monodisperse silica spheres in the micron size range [J]. J Colloid Interf Sci, 1968, 26: 62-69.
LEI X, YU B, CONG H L, et al. Synthesis of monodisperse silica microspheres by a modified Stöber method [J]. Integr Ferroelectr, 2014, 154: 142-146.
FUJITSUKA H, KOBAYASHI T, TAGO T. Development of silicalite-1-encapsulated Ni nanoparticle catalyst from amorphous silica-coated Ni for dry reforming of methane: Achieving coke formation suppression and high thermal stability [J]. J CO2 Util, 2021, 53: 101707.
XU S S, SLATER T J A, HUANG H, et al. Developing silicalite-1 encapsulated Ni nanoparticles as sintering-/coking-resistant catalysts for dry reforming of methane [J]. Chem Eng J, 2022, 446: 137439.
WU H C, CHANG Y C, WU J H, et al. Methanation of CO2 and reverse water gas shift reactions on Ni/SiO2 catalysts: The influence of particle size on selectivity and reaction pathway [J]. Catal Sci Technol, 2015, 5(8): 4154-4163.
GALHARDO T S, BRAGA A H, ARPINI B H, et al. Optimizing active sites for high CO selectivity during CO2 hydrogenation over supported nickel catalysts [J]. J Am Chem Soc, 2021, 143(11): 4268-4280.
Research progress on active phases regulation of iron-based catalysts and their CO2 catalytic hydrogenation to linear α-olefins
Ni-based catalysts prepared by plasma-assisted citric acid complexation impregnation and their catalytic performance for CO2 methanation
Effect of Ni-based catalyst Ni particle size on dry reforming of methane reaction and its application prospect
Preparation of Ni/nitrogen-doped carbon catalysts and their experimental study on dry reforming of methane
Related Author
No data
Related Institution
Ningxia Academy of Metrology & Quality Inspection, National Quality Supervision and Inspection Center for Coal and Coal Chemical Products
Institute of Coal Chemical Industry Technology, National Energy Group Ningxia Coal Industry Co., Ltd.
State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University
School of Chemical Engineering, Sichuan University
School of Mechanical and Power Engineering, East China University of Science and Technology