CO activation and methanation mechanism on hexagonal close-packed Co catalysts: effect of functionals, carbon deposition and surface structure

2020 ◽  
Vol 10 (10) ◽  
pp. 3387-3398
Author(s):  
Hai-Yan Su ◽  
Changlin Yu ◽  
Jin-Xun Liu ◽  
Yonghui Zhao ◽  
Xiufang Ma ◽  
...  
Keyword(s):  
Surface Structure ◽  
Carbon Deposition ◽  
Graphitic Carbon ◽  
Co Methanation ◽  
Co Catalysts ◽  
Hexagonal Close Packed ◽  
Co Activation

Regardless of the functionals used and the presence of graphitic carbon, the CO methanation rate on Co(0001) is mainly controlled by CHO decomposition.

scholarly journals Influence of Ni Precursors on the Structure, Performance, and Carbon Deposition of Ni-Al2O3 Catalysts for CO Methanation

ACS Omega ◽  
2021 ◽  
Author(s):  
Wenlong Mo ◽  
Xingxiang Wang ◽  
Meng Zou ◽  
Xianjin Huang ◽  
Fengyun Ma ◽  
...  
Keyword(s):  
Carbon Deposition ◽  
Co Methanation

Stars and stripes. Nanoscale misfit dislocation patterns on surfaces

2002 ◽  
Vol 74 (9) ◽  
pp. 1663-1671 ◽  
Author(s):  
Raghani Pushpa ◽  
Shobhana Narasimhan
Keyword(s):  
Surface Structure ◽  
Misfit Dislocation ◽  
Domain Walls ◽  
Chemical Potential ◽  
Model System ◽  
Misfit Dislocations ◽  
Face Centered Cubic ◽  
Hexagonal Close Packed ◽  
Structure Changes ◽  
Face Centered

Close-packed metal surfaces and heteroepitaxial systems frequently display a structure consisting of regularly spaced misfit dislocations, with a network of domain walls separating face-centered cubic (fcc) and hexagonal close-packed (hcp) domains. These structures can serve as templates for growing regularly spaced arrays of nanoislands. We present a theoretical investigation of the factors controlling the size and shape of the domains, using Pt(111) as a model system. Upon varying the chemical potential, the surface structure changes from being unreconstructed to the honeycomb, wavy triangles, "bright stars", or Moiré patterns observed experimentally on Pt(111) and other systems. For the particular case of Pt(111), isotropically contracted star-like patterns are favored over uniaxially contracted stripes.

Impact of mesoporous structure of acid-treated clay on nickel dispersion and carbon deposition for CO methanation

2014 ◽  
Vol 39 (7) ◽  
pp. 3231-3242 ◽  
Author(s):  
Xuzhuang Yang ◽  
Wendurima ◽  
Guanjun Gao ◽  
Quanquan Shi ◽  
Xin Wang ◽  
...  
Keyword(s):  
Carbon Deposition ◽  
Mesoporous Structure ◽  
Co Methanation ◽  
Nickel Dispersion

Platinum nanoparticles strongly associated with graphitic carbon nitride as efficient co-catalysts for photocatalytic hydrogen evolution under visible light

2014 ◽  
Vol 50 (96) ◽  
pp. 15255-15258 ◽  
Author(s):  
Yasuhiro Shiraishi ◽  
Yusuke Kofuji ◽  
Shunsuke Kanazawa ◽  
Hirokatsu Sakamoto ◽  
Satoshi Ichikawa ◽  
...  
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Platinum Nanoparticles ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Photocatalytic Hydrogen Evolution ◽  
Co Catalysts

scholarly journals Catalytic carbon deposition-oxidation over Ni, Fe and Co catalysts: A new indirect route to store and transport gas hydrocarbon fuels

2013 ◽  
Vol 32 ◽  
pp. 58-61 ◽  
Author(s):  
Patrícia E.F. Oliveira ◽  
Leandro P. Ribeiro ◽  
Marcelo G. Rosmaninho ◽  
José D. Ardisson ◽  
Anderson Dias ◽  
...  
Keyword(s):  
Carbon Deposition ◽  
Hydrocarbon Fuels ◽  
Co Catalysts ◽  
Indirect Route

Mechanism studies concerning carbon deposition effect of CO methanation on Ni-based catalyst through DFT and TPSR methods

2016 ◽  
Vol 41 (20) ◽  
pp. 8401-8411 ◽  
Author(s):  
Xiaoxia Han ◽  
Jinzhou Yang ◽  
Hailong Guo ◽  
Zhifeng Qin ◽  
Shuyan Zhao ◽  
...  
Keyword(s):  
Carbon Deposition ◽  
Co Methanation ◽  
Deposition Effect

Site-Specific Carbon Deposition for Hierarchically Ordered Core/Shell-Structured Graphitic Carbon with Remarkable Electrochemical Performance

ChemSusChem ◽  
2013 ◽  
Vol 6 (10) ◽  
pp. 1938-1944 ◽  
Author(s):  
Yingying Lv ◽  
Zhangxiong Wu ◽  
Xufang Qian ◽  
Yin Fang ◽  
Dan Feng ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Carbon Deposition ◽  
Graphitic Carbon ◽  
Core Shell ◽  
Site Specific
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