Citation: GUO Yun-Peng, FENG Jie, LI Wen-Ying. Effect of Ni Doping on Electron Transfer in Ni/MgO Catalysts[J]. Acta Physico-Chimica Sinica, ;2017, 33(9): 1796-1802. doi: 10.3866/PKU.WHXB201705081
-
First-principles calculations based on density functional theory (DFT) have been used to investigate how Ni doping in the supporter impacts CH4/CO2 reforming over Ni/MgO catalysts. Ni8 clusters supported on different NixMgyO27(100) slabs (x+y= 27) have been selected to model Ni/MgO catalysts with different Ni : Mg ratio. The CH4/CO2 reforming mechanisms on different Ni8/NixMgyO27(100) slabs indicate that the energy barriers of CH4 dissociated adsorption and CHx oxidation both increase with an increase in the Ni : Mg ratio of the supporter. CH would be easily generated from the pyrolytic carbon. The electron structure analysis shows that the direction of electron transfer changes to “between metal and supporter” with increasing Ni : Mg ratio of the supporter, but not to “from supporter to metal” on pure Ni/MgO. When the Ni cluster is negative, electron transfer occurs between adsorbed species and Ni atoms in the surface layer of the Ni cluster, and CH2 is the main species for CHx oxidation. When the Ni cluster is positive, its Hirshfeld is stable, electron transfer occurs between adsorbed species and Ni atoms in the surface layer of the NiO-MgO solid solution, and CH is the main oxidative species. The electron deficiency of the Ni cluster is the reason for the poor catalytic performance of Ni/MgO with a high Ni doping ratio.
-
Keywords:
- CH4/CO2 reforming,
- Ni/MgO,
- Ni:Mg ratio,
- Electron transfer,
- DFT
-
-
[1]
-
[2]
-
[3]
-
[4]
-
[5]
-
[6]
-
[7]
-
[8]
-
[9]
-
[10]
-
[11]
-
[12]
-
[13]
-
[14]
-
[15]
-
[16]
-
[17]
-
[18]
-
[19]
-
[20]
-
[21]
-
[22]
-
[23]
-
[24]
-
[25]
-
[26]
-
[27]
-
[28]
-
[29]
-
[30]
-
[31]
-
[32]
-
[33]
-
[34]
-
[35]
-
[36]
-
[37]
-
[38]
-
[39]
-
[40]
-
[41]
-
[1]
-
-
[1]
Tsegaye Tadesse Tsega , Jiantao Zai , Chin Wei Lai , Xin-Hao Li , Xuefeng Qian . Earth-abundant CuFeS2 nanocrystals@graphite felt electrode for high performance aqueous polysulfide/iodide redox flow batteries. Chinese Journal of Structural Chemistry, 2024, 43(1): 100192-100192. doi: 10.1016/j.cjsc.2023.100192
-
[2]
Zhengyu Zhou , Huiqin Yao , Youlin Wu , Teng Li , Noritatsu Tsubaki , Zhiliang Jin . Synergistic Effect of Cu-Graphdiyne/Transition Bimetallic Tungstate Formed S-Scheme Heterojunction for Enhanced Photocatalytic Hydrogen Evolution. Acta Physico-Chimica Sinica, 2024, 40(10): 2312010-. doi: 10.3866/PKU.WHXB202312010
-
[3]
Chaozheng He , Jia Wang , Ling Fu , Wei Wei . Nitric oxide assists nitrogen reduction reaction on 2D MBene: A theoretical study. Chinese Chemical Letters, 2024, 35(5): 109037-. doi: 10.1016/j.cclet.2023.109037
-
[4]
Ting-Ting Huang , Jin-Fa Chen , Juan Liu , Tai-Bao Wei , Hong Yao , Bingbing Shi , Qi Lin . A novel fused bi-macrocyclic host for sensitive detection of Cr2O72− based on enrichment effect. Chinese Chemical Letters, 2024, 35(7): 109281-. doi: 10.1016/j.cclet.2023.109281
-
[5]
Run-Han Li , Tian-Yi Dang , Wei Guan , Jiang Liu , Ya-Qian Lan , Zhong-Min Su . Evolution exploration and structure prediction of Keggin-type group IVB metal-oxo clusters. Chinese Chemical Letters, 2024, 35(5): 108805-. doi: 10.1016/j.cclet.2023.108805
-
[6]
Jin CHANG . Supercapacitor performance and first-principles calculation study of Co-doping Ni(OH)2. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1697-1707. doi: 10.11862/CJIC.20240108
-
[7]
Qin Hu , Liuyun Chen , Xinling Xie , Zuzeng Qin , Hongbing Ji , Tongming Su . Ni掺杂构建电子桥及激活MoS2惰性基面增强光催化分解水产氢. Acta Physico-Chimica Sinica, 2024, 40(11): 2406024-. doi: 10.3866/PKU.WHXB202406024
-
[8]
Maomao Liu , Guizeng Liang , Ningce Zhang , Tao Li , Lipeng Diao , Ping Lu , Xiaoliang Zhao , Daohao Li , Dongjiang Yang . Electron-rich Ni2+ in Ni3S2 boosting electrocatalytic CO2 reduction to formate and syngas. Chinese Journal of Structural Chemistry, 2024, 43(8): 100359-100359. doi: 10.1016/j.cjsc.2024.100359
-
[9]
Mianying Huang , Zhiguang Xu , Xiaoming Lin . Mechanistic analysis of Co2VO4/X (X = Ni, C) heterostructures as anode materials of lithium-ion batteries. Chinese Journal of Structural Chemistry, 2024, 43(7): 100309-100309. doi: 10.1016/j.cjsc.2023.100309
-
[10]
Xiuzheng Deng , Changhai Liu , Xiaotong Yan , Jingshan Fan , Qian Liang , Zhongyu Li . Carbon dots anchored NiAl-LDH@In2O3 hierarchical nanotubes for promoting selective CO2 photoreduction into CH4. Chinese Chemical Letters, 2024, 35(6): 108942-. doi: 10.1016/j.cclet.2023.108942
-
[11]
Zixuan Zhu , Xianjin Shi , Yongfang Rao , Yu Huang . Recent progress of MgO-based materials in CO2 adsorption and conversion: Modification methods, reaction condition, and CO2 hydrogenation. Chinese Chemical Letters, 2024, 35(5): 108954-. doi: 10.1016/j.cclet.2023.108954
-
[12]
Xiangyuan Zhao , Jinjin Wang , Jinzhao Kang , Xiaomei Wang , Hong Yu , Cheng-Feng Du . Ni nanoparticles anchoring on vacuum treated Mo2TiC2Tx MXene for enhanced hydrogen evolution activity. Chinese Journal of Structural Chemistry, 2023, 42(10): 100159-100159. doi: 10.1016/j.cjsc.2023.100159
-
[13]
Hongye Bai , Lihao Yu , Jinfu Xu , Xuliang Pang , Yajie Bai , Jianguo Cui , Weiqiang Fan . Controllable Decoration of Ni-MOF on TiO2: Understanding the Role of Coordination State on Photoelectrochemical Performance. Chinese Journal of Structural Chemistry, 2023, 42(10): 100096-100096. doi: 10.1016/j.cjsc.2023.100096
-
[14]
Yuchen Guo , Xiangyu Zou , Xueling Wei , Weiwei Bao , Junjun Zhang , Jie Han , Feihong Jia . Fe regulating Ni3S2/ZrCoFe-LDH@NF heterojunction catalysts for overall water splitting. Chinese Journal of Structural Chemistry, 2024, 43(2): 100206-100206. doi: 10.1016/j.cjsc.2023.100206
-
[15]
Jia Chen , Yun Liu , Zerong Long , Yan Li , Hongdeng Qiu . Colorimetric detection of α-glucosidase activity using Ni-CeO2 nanorods and its application to potential natural inhibitor screening. Chinese Chemical Letters, 2024, 35(9): 109463-. doi: 10.1016/j.cclet.2023.109463
-
[16]
Xinpeng LIU , Liuyang ZHAO , Hongyi LI , Yatu CHEN , Aimin WU , Aikui LI , Hao HUANG . Ga2O3 coated modification and electrochemical performance of Li1.2Mn0.54Ni0.13Co0.13O2 cathode material. Chinese Journal of Inorganic Chemistry, 2024, 40(6): 1105-1113. doi: 10.11862/CJIC.20230488
-
[17]
Yifen He , Chao Qu , Na Ren , Dawei Liang . Enhanced degradation of refractory organics in ORR-EO system with a blue TiO2 nanotube array modified Ti-based Ni-Sb co-doped SnO2 anode. Chinese Chemical Letters, 2024, 35(8): 109262-. doi: 10.1016/j.cclet.2023.109262
-
[18]
Zongyi Huang , Cheng Guo , Quanxing Zheng , Hongliang Lu , Pengfei Ma , Zhengzhong Fang , Pengfei Sun , Xiaodong Yi , Zhou Chen . Efficient photocatalytic biomass-alcohol conversion with simultaneous hydrogen evolution over ultrathin 2D NiS/Ni-CdS photocatalyst. Chinese Chemical Letters, 2024, 35(7): 109580-. doi: 10.1016/j.cclet.2024.109580
-
[19]
Yuejiao An , Wenxuan Liu , Yanfeng Zhang , Jianjun Zhang , Zhansheng Lu . Revealing Photoinduced Charge Transfer Mechanism of SnO2/BiOBr S-Scheme Heterostructure for CO2 Photoreduction. Acta Physico-Chimica Sinica, 2024, 40(12): 2407021-. doi: 10.3866/PKU.WHXB202407021
-
[20]
Yi Zhang , Biao Wang , Chao Hu , Muhammad Humayun , Yaping Huang , Yulin Cao , Mosaad Negem , Yigang Ding , Chundong Wang . Fe–Ni–F electrocatalyst for enhancing reaction kinetics of water oxidation. Chinese Journal of Structural Chemistry, 2024, 43(2): 100243-100243. doi: 10.1016/j.cjsc.2024.100243
-
[1]
Metrics
- PDF Downloads(0)
- Abstract views(433)
- HTML views(39)