Study on carbon deposition associated with catalytic CH4 reforming by using density functional theory
Study on carbon deposition associated with catalytic CH4 reforming by using density functional theory
复制标题
密度泛函理论研究CH4催化重整过程中的碳沉积
DOI:
10.1016/j.fuel.2013.06.022
复制
发表时间:
2013-11
期刊:
影响因子:
7.4
通讯作者:
Harris H. Gordon
中科院分区:
文献类型:
--
作者:
Henson Neil;Zhang Yulong;Towler Brian Francis;Harris H. Gordon
Density functional theory (DFT) has been applied to investigate the adsorptions of CH4, CH3, CH2, CH, C, H and dissociations CH4, CH3, CH2, CH on the (1 1 1) catalyst surfaces of elementary metals Co bimetals NiFe. More important, the adsorptions and dissociations of those adspecies on elementary metals (Fe, Co, Ni and Cu) and bimetals (NiFe, NiCo and NiCu) have been analyzed. The adsorption energies, activation energies, reaction energies andd-band centers of the catalysts were calculated and their linear correlations were established. The adsorption energy decreases with thed-band center of the catalyst surface shift away from the Fermi level, and thus the increase in activation energy and reaction energy. Therefore, a good catalyst should have a moderated-band center in CH4/CO2reforming. This research finds that segregated NiCu is the best one among the eight CH4/CO2reforming catalysts, Fe, Co, Ni, Cu, NiFe, NiCo, NiCu, and NiCu(S) [segregated NiCu].
登录
查看更多内容
影响因子:
5.3
作者:
Dapeng Liu;Wei Ni Evelyn Cheo;Yiyo Lim;A. Borgna;Raymond Lau;Yanhui Yang
通讯作者:
Dapeng Liu;Wei Ni Evelyn Cheo;Yiyo Lim;A. Borgna;Raymond Lau;Yanhui Yang
影响因子:
5.3
作者:
Chen, HW;Wang, CY;Liao, PH
通讯作者:
Liao, PH
影响因子:
6.7
作者:
Hongyan Liu;Riguang Zhang;R. Yan;Baojun Wang;K. Xie
通讯作者:
Hongyan Liu;Riguang Zhang;R. Yan;Baojun Wang;K. Xie
影响因子:
8.6
作者:
Mavrikakis, M;Hammer, B;Norskov, JK
通讯作者:
Norskov, JK
影响因子:
6.7
作者:
Liu, Hongyan;Zhang, Riguang;Xie, Kechang
通讯作者:
Xie, Kechang