Predictive control of selective secondary alcohol oxidation of glycerol on NiOOH

McKenna K. Goetz, Michael T. Bender and Kyoung-Shin Choi ()
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McKenna K. Goetz: University of Wisconsin-Madison
Michael T. Bender: University of Wisconsin-Madison
Kyoung-Shin Choi: University of Wisconsin-Madison

Nature Communications, 2022, vol. 13, issue 1, 1-10

Abstract: Abstract Many biomass intermediates are polyols and selectively oxidizing only a primary or secondary alcohol group is beneficial for the valorization of these intermediates. For example, production of 1,3-dihydroxyacetone, a highly valuable oxidation product of glycerol, requires selective secondary alcohol oxidation. However, selective secondary alcohol oxidation is challenging due to its steric disadvantage. This study demonstrates that NiOOH, which oxidizes alcohols via two dehydrogenation mechanisms, hydrogen atom transfer and hydride transfer, can convert glycerol to 1,3-dihydroxyacetone with high selectivity when the conditions are controlled to promote hydrogen atom transfer, favoring secondary alcohol oxidation. This rational production of 1,3-dihydroxyacetone achieved by selectively enabling one desired dehydrogenation pathway, without requiring alteration of catalyst composition, demonstrates how comprehensive mechanistic understanding can enable predictive control over selectivity.

Date: 2022
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DOI: 10.1038/s41467-022-33637-7

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