DICP OpenIR
Low Temperature CO2 Methanation: ZIF-67-Derived Co-Based Porous Carbon Catalysts with Controlled Crystal Morphology and Size
Li, Wenhui1; Zhang, Anfeng1; Jiang, Xiao2; Chen, Chen1; Liu, Zhongmin3; Song, Chunshan1,2; Guo, Xinwen1
关键词Co2 Methanation Low-temperature Zif-67 Ctab Cobalt
刊名ACS SUSTAINABLE CHEMISTRY & ENGINEERING
2017-09-01
DOI10.1021/acssuschemeng.7b01306
5期:9页:7824-7831
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Multidisciplinary ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]ZEOLITIC IMIDAZOLATE FRAMEWORKS ; METAL-ORGANIC FRAMEWORK ; SMALL MICROPORES ; AQUEOUS-SOLUTION ; PARTICLE-SIZE ; HYDROGENATION ; NANOPARTICLES ; METHANOL ; OXIDE ; DIOXIDE
英文摘要A Co-based zeolitic imidazolate framework, ZIF-67, has been utilized as a precursor to obtain Co-based porous carbon catalysts. The obtained catalysts display an outstanding catalytic performance toward the CO2 methanation at low temperature. The ZIF-67 crystal morphology can be controlled from cubic to rhombic dodecahedron, and the original particle sizes can be regulated from 150 nm to 1 mu m in aqueous solution by cetyltrimethylammonium bromide (CTAB) surfactants. After carbonation in N-2 flow, Co-based porous carbon catalysts kept the original ZIF-67 crystal morphology and particle size but differed in the micropore property; the 0.01 wt % CTAB content led to the maximum micropore volume 0.125 cm(3)/g. The Co nanoparticles inside the carbon matrix range between 7 and 20 nm, and they are separated by the graphite-like carbon avoiding the metal sintering effectively. Furthermore, the catalysts with 0.01% CTAB addition exhibited the highest CO2 conversion (52.5%) and CH4 selectivity (99.2%) under the 72000 mL g(-1) h(-1) GHSV (gas hourly space velocity) at 270 degrees C. Noticeably, the Co/PC catalysts performed higher activity and stability than the supported catalysts 20Co/AC. The versatile way offers good prospects for low temperature CO2 methanation and prevents metal sintering effectively.
语种英语
WOS记录号WOS:000410006200042
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/150034
专题中国科学院大连化学物理研究所
作者单位1.Dalian Univ Technol, PSU DUT Joint Ctr Energy Res, State Key Lab Fine Chem, Fac Chem, Dalian 116024, Peoples R China
2.Penn State Univ, PSU DUT Joint Ctr Energy Res, EMS Energy Inst, Clean Fuels & Catalysis Program, University Pk, PA 16802 USA
3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Natl Engn Lab Methanol Olefins, Dalian 116023, Peoples R China
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Li, Wenhui,Zhang, Anfeng,Jiang, Xiao,et al. Low Temperature CO2 Methanation: ZIF-67-Derived Co-Based Porous Carbon Catalysts with Controlled Crystal Morphology and Size[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2017,5(9):7824-7831.
APA Li, Wenhui.,Zhang, Anfeng.,Jiang, Xiao.,Chen, Chen.,Liu, Zhongmin.,...&Guo, Xinwen.(2017).Low Temperature CO2 Methanation: ZIF-67-Derived Co-Based Porous Carbon Catalysts with Controlled Crystal Morphology and Size.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,5(9),7824-7831.
MLA Li, Wenhui,et al."Low Temperature CO2 Methanation: ZIF-67-Derived Co-Based Porous Carbon Catalysts with Controlled Crystal Morphology and Size".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 5.9(2017):7824-7831.
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