Akri, M;
Zhao, S;
Li, X;
Zang, K;
Lee, AF;
Isaacs, MA;
Xi, W;
... Zhang, T; + view all
(2019)
Atomically dispersed nickel as coke-resistant active sites for methane dry reforming.
Nature Communications
, 10
(1)
, Article 5181. 10.1038/s41467-019-12843-w.
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Abstract
Dry reforming of methane (DRM) is an attractive route to utilize CO2 as a chemical feedstock with which to convert CH4 into valuable syngas and simultaneously mitigate both greenhouse gases. Ni-based DRM catalysts are promising due to their high activity and low cost, but suffer from poor stability due to coke formation which has hindered their commercialization. Herein, we report that atomically dispersed Ni single atoms, stabilized by interaction with Ce-doped hydroxyapatite, are highly active and coke-resistant catalytic sites for DRM. Experimental and computational studies reveal that isolated Ni atoms are intrinsically coke-resistant due to their unique ability to only activate the first C-H bond in CH4, thus avoiding methane deep decomposition into carbon. This discovery offers new opportunities to develop large-scale DRM processes using earth abundant catalysts.
| Type: | Article |
|---|---|
| Title: | Atomically dispersed nickel as coke-resistant active sites for methane dry reforming |
| Location: | England |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1038/s41467-019-12843-w |
| Publisher version: | https://doi.org/10.1038/s41467-019-12843-w |
| Language: | English |
| Additional information: | © The Author(s) 2019. This article is licensed under a Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/). |
| Keywords: | Catalyst synthesis, Heterogeneous catalysis, Materials for energy and catalysis, Nanoscale materials |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10086347 |
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