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钒促进的共沉淀Ni-Mg-Al水滑石衍生催化剂用于CO甲烷化反应

Co-Precipitated Ni-Mg-Al Hydrotalcite-Derived Catalyst Promoted with Vanadium for CO Methanation.

作者信息

Summa Paulina, Świrk Katarzyna, Wierzbicki Dominik, Motak Monika, Alxneit Ivo, Rønning Magnus, Da Costa Patrick

机构信息

Institut Jean Le Rond d'Alembert, Sorbonne Université, CNRS UMR 7190, 78210 Saint-Cyr-L'Ecole, France.

Faculty of Energy and Fuels, AGH University of Science and Technology, 30-059 Kraków, Poland.

出版信息

Molecules. 2021 Oct 28;26(21):6506. doi: 10.3390/molecules26216506.

DOI:10.3390/molecules26216506
PMID:34770915
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8588090/
Abstract

Co-precipitated Ni-Mg-Al hydrotalcite-derived catalyst promoted with vanadium were synthesized with different V loadings (0-4 wt%) and studied in CO methanation. The promotion with V significantly changes textural properties (specific surface area and mesoporosity) and improves the dispersion of nickel. Moreover, the vanadium promotion strongly influences the surface basicity by increasing the total number of basic sites. An optimal loading of 2 wt% leads to the highest activity in CO methanation, which is directly correlated with specific surface area, as well as the basic properties of the studied catalysts.

摘要

采用不同钒负载量（0 - 4 wt%）合成了用钒促进的共沉淀镍镁铝水滑石衍生催化剂，并对其进行了CO甲烷化研究。钒的促进作用显著改变了织构性质（比表面积和介孔率），并改善了镍的分散性。此外，钒促进剂通过增加碱性位点的总数强烈影响表面碱性。2 wt%的最佳负载量导致CO甲烷化活性最高，这与比表面积以及所研究催化剂的碱性性质直接相关。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd9f/8588090/c4d37d5725a2/molecules-26-06506-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd9f/8588090/c22451a35a7e/molecules-26-06506-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd9f/8588090/87e6c6201711/molecules-26-06506-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd9f/8588090/3ee7c959c18a/molecules-26-06506-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd9f/8588090/5ac91998c18c/molecules-26-06506-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd9f/8588090/22544856673c/molecules-26-06506-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd9f/8588090/dfa4c3d66472/molecules-26-06506-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd9f/8588090/c4d37d5725a2/molecules-26-06506-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd9f/8588090/c22451a35a7e/molecules-26-06506-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd9f/8588090/1f09a0ef418c/molecules-26-06506-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd9f/8588090/042b989982ff/molecules-26-06506-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd9f/8588090/87e6c6201711/molecules-26-06506-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd9f/8588090/3ee7c959c18a/molecules-26-06506-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd9f/8588090/5ac91998c18c/molecules-26-06506-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd9f/8588090/22544856673c/molecules-26-06506-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd9f/8588090/dfa4c3d66472/molecules-26-06506-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bd9f/8588090/c4d37d5725a2/molecules-26-06506-g009.jpg

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