TY - JOUR
T1 - Lattice Matching Strategy to Construct Highly Active hcp-Co Phase for Fischer-Tropsch Synthesis
AU - Lyu, Shuai
AU - Wang, Shan
AU - He, Zhiyan
AU - Yang, Jie
AU - Xu, Xiao
AU - Carabineiro, Sónia A. C.
AU - Zhu, Junjiang
N1 - info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50006%2F2020/PT#
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50006%2F2020/PT#
Funding Information:
This work supported by the National Natural Science Foundation of China (22102220, 42277485, 21976141), the Department of Science and Technology of Hubei Province (2021CFA034), the Department of Education of Hubei Province (T2020011), the Opening Project of Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing (STRZ202202, STRZ202102). SACC also acknowledges FCT for the Scientific Employment Stimulus─Institutional Call (CEECINST/00102/2018).
Publisher Copyright:
© 2024 American Chemical Society.
PY - 2024/3/4
Y1 - 2024/3/4
N2 - Lattice matching facilitates the growth of heteroatoms on a stable substrate with similar lattice spacing, thereby offering a solution for synthesizing inherently unstable active atoms while simultaneously exhibiting novel properties. In this study, this concept was used to construct highly active while metastable hcp-Co active phases for the Fischer-Tropsch Synthesis (FTS) reaction. The formation of hcp-Co species was achieved by initially depositing wurtzite CoO on ZnO (ZnO@h-CoO), which exhibited only a lattice mismatch of 0.18%, followed by reduction with H2 to yield ZnO@hcp-Co. Experimental and Density Functional Theory (DFT) calculations suggest that ZnO can decrease the surface energy of h-CoO through a strong interface bond. In situ XRD performed under H2 conditions confirms that ZnO@h-CoO is a viable precursor for the hcp-Co active phase in Fischer-Tropsch synthesis, particularly when the reduction temperature is below 400 °C. The ZnO@h-CoO catalyst demonstrates significantly enhanced catalytic performance compared with impregnated Co/ZnO catalysts due to the presence of hcp-Co sites. This work provides comprehensive insights into the phase transition process of metastable h-CoO, under various atmospheres and temperatures, presenting a practical approach for acquiring the hcp-Co active phase in Fischer-Tropsch synthesis.
AB - Lattice matching facilitates the growth of heteroatoms on a stable substrate with similar lattice spacing, thereby offering a solution for synthesizing inherently unstable active atoms while simultaneously exhibiting novel properties. In this study, this concept was used to construct highly active while metastable hcp-Co active phases for the Fischer-Tropsch Synthesis (FTS) reaction. The formation of hcp-Co species was achieved by initially depositing wurtzite CoO on ZnO (ZnO@h-CoO), which exhibited only a lattice mismatch of 0.18%, followed by reduction with H2 to yield ZnO@hcp-Co. Experimental and Density Functional Theory (DFT) calculations suggest that ZnO can decrease the surface energy of h-CoO through a strong interface bond. In situ XRD performed under H2 conditions confirms that ZnO@h-CoO is a viable precursor for the hcp-Co active phase in Fischer-Tropsch synthesis, particularly when the reduction temperature is below 400 °C. The ZnO@h-CoO catalyst demonstrates significantly enhanced catalytic performance compared with impregnated Co/ZnO catalysts due to the presence of hcp-Co sites. This work provides comprehensive insights into the phase transition process of metastable h-CoO, under various atmospheres and temperatures, presenting a practical approach for acquiring the hcp-Co active phase in Fischer-Tropsch synthesis.
UR - http://www.scopus.com/inward/record.url?scp=85185299376&partnerID=8YFLogxK
U2 - 10.1021/acsmaterialslett.3c01516
DO - 10.1021/acsmaterialslett.3c01516
M3 - Article
AN - SCOPUS:85185299376
SN - 2639-4979
VL - 6
SP - 856
EP - 864
JO - ACS Materials Letters
JF - ACS Materials Letters
IS - 3
ER -