Effect of interstitial carbon atoms in core-shell Ni3ZnC0.7/Al2O3 catalyst for high-performance dry reforming of methane
Dry reforming of methane (DRM) on Ni-based catalysts provides an economically and environmentally pivotal route to generate synthesis gas. However, coke formation on Ni surface by the growth of carbon atoms is the main reason for catalyst deactivation and reactor blockage. Here, we propose a reaction-induced method to incorporate and store active carbon atoms into nickel octahedral sites in core-shell NiZnC/AlO. This strategy can fundamentally avoid C−C bond formation and feasible oxidation of NiZnC in low-temperature DRM under CO-rich condition. About 2 nm of thin-layer AlO encapsulated NiZnC is explored as the carbon reservoir to accommodate sufficient interstitial carbon atoms, and less than 5% NiZn was observed under CH/CO < 1/1 for 100 h. The dynamic balance of carbon atom storage and conversion in robust NiZnC contributes to the enhanced activity, stability, coke and oxidation resistance, and distinct reaction pathway in low-temperature DRM.
National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
|WOS Research Area|
Chemistry ; Engineering
Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
|WOS Accession No|
|EI Accession Number|
Alumina ; Aluminum Oxide ; Atoms ; Binary Alloys ; Carbon ; Catalyst Deactivation ; Methane ; Oxidation Resistance ; Shells (Structures) ; Temperature
|ESI Classification Code|
Structural Members And Shapes:408.2 ; Solid Fuels:524 ; Metals Corrosion:539.1 ; Thermodynamics:641.1 ; Chemical Reactions:802.2 ; Chemical Agents And Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Organic Compounds:804.1 ; Inorganic Compounds:804.2 ; Atomic And Molecular Physics:931.3
|ESI Research Field|
Cited Times [WOS]:9
|Document Type||Journal Article|
|Department||Department of Physics|
1.College of Chemical Engineering and Technology,Taiyuan University of Technology,Taiyuan,Shanxi,030024,China
2.Department of Physics,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
3.State Key Laboratory of Coal Conversion,Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan,Shanxi,030001,China
4.State Key Laboratory of Clean and Efficient Coal Utilization,Taiyuan University of Technology,Taiyuan,Shanxi,030024,China
Wang，Qianqian,Wang，Wu,Cao，Min,et al. Effect of interstitial carbon atoms in core-shell Ni3ZnC0.7/Al2O3 catalyst for high-performance dry reforming of methane[J]. Applied Catalysis B: Environmetal,2022,317.
Wang，Qianqian.,Wang，Wu.,Cao，Min.,Li，Sha.,Wang，Pengfei.,...&Yan，Xiaoliang.(2022).Effect of interstitial carbon atoms in core-shell Ni3ZnC0.7/Al2O3 catalyst for high-performance dry reforming of methane.Applied Catalysis B: Environmetal,317.
Wang，Qianqian,et al."Effect of interstitial carbon atoms in core-shell Ni3ZnC0.7/Al2O3 catalyst for high-performance dry reforming of methane".Applied Catalysis B: Environmetal 317(2022).
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