Green methanol synthesis by catalytic CO2 hydrogenation, deciphering the role of metal-metal interaction

被引:17
作者
Alotaibi, Mshari A. [1 ]
Din, Israf Ud [1 ]
Alharthi, Abdulrahman I. [1 ]
Bakht, M. Afroz [1 ]
Centi, Gabriele [2 ]
Shaharun, Maizatul S. [3 ]
Naeem, A. [4 ]
机构
[1] Prince Sattam Bin Abdulaziz Univ, Coll Sci & Humanities, Dept Chem, POB 173, AlKharj 11942, Saudi Arabia
[2] Univ Messina, Depts MIFT ChiBioFarAm & ERIC Aisbl, Messina, Italy
[3] Univ Teknol PETRONAS, Dept Fundamental & Appl Sci, Perak, Malaysia
[4] Univ Peshawar, Natl Ctr Excellence Phys Chem, Peshawar, Pakistan
关键词
CO2; conversion; Nano-catalysts; Methanol synthesis; Metal-metal chemical interaction; CARBON-DIOXIDE HYDROGENATION; AG-BASED CATALYSTS; COPPER/ZIRCONIA CATALYSTS; CU/ZRO2; CATALYSTS; CU CATALYSTS; SUPPORT; AU; REDUCTION; OXIDATION; ZIRCONIA;
D O I
10.1016/j.scp.2021.100420
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The current work deals with the synthesis, characterization and activity studies of zeolite based Ag-Cu bimetallic catalysts for CO2 hydrogenation to methanol. To probe the effect of Ag-Cu weight ratio, Ag-Cu with 1:9, 2:8, 4:6 and 1:1 wt ratios were synthesized by impregnation method. Thermo-gravimetric analysis revealed that catalysts stability was improved by Ag enrichment to the zeolite based Ag-Cu bimetallic catalysts. X-ray diffraction studies showed that zeolite structure has been modified by the incorporation of Ag-Cu metals to the bare zeolite. Nitrogen adsorption desorption studies manifested that BET surface area, pore size and pore volume were less affected by variation in Ag-Cu weight ratio. Formation of nano-sized Ag-Cu bimetallic catalysts with high dispersion was illuminated by Field Emission Electron Microscopy (FESEM). X-ray Photoelectron Spectroscopy (XPS) findings revealed greater metal-metal chemical interaction as a consequent of Ag addition to the zeolite based Ag-Cu bimetallic catalysts. Activity studies of zeolite based Ag-Cu bimetallic catalysts exhibited the promoting role of Ag in CO2 hydrogenation to methanol. The structure activity studies observed Ag-Cu metal-metal chemical interaction as the key factor controlling the rate of methanol synthesis.
引用
收藏
页数:7
相关论文
共 40 条
[1]   Synthesis and characterization of Cu(II) and Co(II) encapsulated metal complexes in zeolite-Y for the oxidation of phenol and benzene [J].
Akinlolu, Kayode ;
Omolara, Bamgboye ;
Kehinde, Ogunniran ;
Shailendra, Tripathi ;
Kumar, Manoj .
13TH JOINT CONFERENCE ON CHEMISTRY (13TH JCC), 2019, 509
[2]   Propenal Hydrogenation on Silver Surface - A Theoretical Approach [J].
Andoni, Adelaida ;
van Santen, Rutger A. .
7TH CONFERENCE ON SUSTAINABLE DEVELOPMENT OF ENERGY, WATER AND ENVIRONMENT SYSTEMS (SDEWES), 2013, 34 :19-24
[3]   A novel condensation reactor for efficient CO2 to methanol conversion for storage of renewable electric energy [J].
Bos, M. J. ;
Brilman, D. W. F. .
CHEMICAL ENGINEERING JOURNAL, 2015, 278 :527-532
[4]   Comparative study of Cu, Ag and Ag-Cu catalysts over graphite in the ethanol dehydrogenation reaction: Catalytic activity, deactivation and regeneration [J].
Conesa, J. M. ;
Morales, M. V. ;
Lopez-Olmos, C. ;
Rodriguez-Ramos, I. ;
Guerrero-Ruiz, A. .
APPLIED CATALYSIS A-GENERAL, 2019, 576 :54-64
[5]   Effect of reaction conditions on the activity of novel carbon nanofiber-based Cu/ZrO2 catalysts for CO2 hydrogenation to methanol [J].
Din, Israf Ud ;
Shaharun, Maizatul S. ;
Naeem, A. ;
Alotaibi, Mshari A. ;
Alharthi, Abdulrahman, I ;
Nasir, Qazi .
COMPTES RENDUS CHIMIE, 2020, 23 (01) :57-61
[6]   Green synthesis of methanol over zeolite based Cu nano -catalysts, effect of Mg promoter [J].
Din, Israf Ud ;
Alotaibi, Mshari A. ;
Alharthi, Abdulrahman I. .
SUSTAINABLE CHEMISTRY AND PHARMACY, 2020, 16
[7]   Recent developments on heterogeneous catalytic CO2 reduction to methanol [J].
Din, Israf Ud ;
Shaharun, Maizatul S. ;
Alotaibi, Mshari A. ;
Alharthi, Abdulrahman I. ;
Naeem, A. .
JOURNAL OF CO2 UTILIZATION, 2019, 34 :20-33
[8]   Carbon nanofibers based copper/zirconia catalysts for carbon dioxide hydrogenation to methanol: Effect of copper concentration [J].
Din, Israf Ud ;
Shaharun, Maizatul S. ;
Naeem, A. ;
Tasleem, S. ;
Johan, Mohd Rafie .
CHEMICAL ENGINEERING JOURNAL, 2018, 334 :619-629
[9]   Carbon nanofiber-based copper/zirconia catalyst for hydrogenation of CO2 to methanol [J].
Din, Israf Ud ;
Shaharun, Maizatul S. ;
Naeem, A. ;
Tasleem, S. ;
Johan, Mohd Rafie .
JOURNAL OF CO2 UTILIZATION, 2017, 21 :145-155
[10]   Influence of niobium on carbon nanofibres based Cu/ZrO2 catalysts for liquid phase hydrogenation of CO2 to methanol [J].
Din, Israf Ud ;
Shaharun, Maizatul S. ;
Subbarao, Duvvuri ;
Naeem, A. ;
Hussain, F. .
CATALYSIS TODAY, 2016, 259 :303-311