Low Loading Pt Single Atoms Supported on Kit-6-Functionalized Smsrcoo for Water Gas Shift Reaction
SSRN, ISSN: 1556-5068
2023
- 94Usage
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
The water gas shift reaction plays a crucial role in the industrial upgrading of hydrogen sources. Here, xPtSmSrCoO/KIT-6 (x = 0.04, 0.18 and 0.51) was prepared via deposition-precipitation and polyvinyl alcohol-protected reduction method. Among all the samples, single atom Pt 0.04PtSmSrCoO/KIT-6 sample had the highest specific rate (10.99 molCO gPt-1 h-1) and turnover frequency (63.2Î10-2 s-1 at 250 °C), which was primarily attributed to the high valence of Pt single atom, high Oads/Olat molar ratio, and outstanding low-temperature reducibility. The DRIFTS demonstrated the redox mechanisms occur and carbonate as main intermediate over Pt single atom, while carboxylate and formate as intermediates by associative mechanisms over Pt nanoparticles. By DFT calculation, the adsorption energy of CO adsorbed over single atom Pt sample was much smaller than that over Pt nanoparticles. This work provides an effective approach to designing a high-performance catalyst for water gas shift reaction.
Bibliographic Details
Elsevier BV
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