TY - JOUR
T1 - Amorphous antimony oxide as reaction pathway modulator toward electrocatalytic glycerol oxidation for selective dihydroxyacetone production
AU - Kim, Dongkyu
AU - Lim, Won Gwang
AU - Kim, Youngmin
AU - Oh, Lee Seul
AU - Kim, Seongseop
AU - Park, Jong Hyeok
AU - Jo, Changshin
AU - Kim, Hyung Ju
AU - Kang, Joonhee
AU - Lee, Seonggyu
AU - Lim, Eunho
N1 - Publisher Copyright:
© 2023 The Authors
PY - 2023/12/15
Y1 - 2023/12/15
N2 - Achievement of an efficient and stable electrocatalytic glycerol oxidation reaction (EGOR) is limited by a lack of strategies for designing advanced electrocatalysts that satisfy the desired product selectivity, high electrocatalytic activity, and stability. Here, we report that the reaction pathway of EGOR can be modulated by the incorporation of amorphous antimony oxide (SbOx) on the surface of a Pt nanoparticle electrocatalyst (SbOx-Pt), which creates highly selective glycerol oxidation to dihydroxyacetone (DHA), one of the most valuable products of EGOR. The selective control of adsorption behaviors of glycerol oxidation products allows for SbOx to act as a reaction pathway modulator. Moreover, SbOx deposition on a Pt surface also enhances the stability, electrocatalytic activity, and glycerol conversion of the Pt electrocatalyst, and thus promotes the EGOR. As a result, the SbOx-Pt electrocatalyst achieves a high DHA selectivity of 81.1%, which is about 11 times higher than that of commercial Pt/C electrocatalysts.
AB - Achievement of an efficient and stable electrocatalytic glycerol oxidation reaction (EGOR) is limited by a lack of strategies for designing advanced electrocatalysts that satisfy the desired product selectivity, high electrocatalytic activity, and stability. Here, we report that the reaction pathway of EGOR can be modulated by the incorporation of amorphous antimony oxide (SbOx) on the surface of a Pt nanoparticle electrocatalyst (SbOx-Pt), which creates highly selective glycerol oxidation to dihydroxyacetone (DHA), one of the most valuable products of EGOR. The selective control of adsorption behaviors of glycerol oxidation products allows for SbOx to act as a reaction pathway modulator. Moreover, SbOx deposition on a Pt surface also enhances the stability, electrocatalytic activity, and glycerol conversion of the Pt electrocatalyst, and thus promotes the EGOR. As a result, the SbOx-Pt electrocatalyst achieves a high DHA selectivity of 81.1%, which is about 11 times higher than that of commercial Pt/C electrocatalysts.
KW - Electrocatalytic glycerol oxidation
KW - Nanoparticle electrocatalyst
KW - Reaction pathway modulator
KW - Selective dihydroxyacetone production
UR - http://www.scopus.com/inward/record.url?scp=85165312034&partnerID=8YFLogxK
U2 - 10.1016/j.apcatb.2023.123104
DO - 10.1016/j.apcatb.2023.123104
M3 - Article
AN - SCOPUS:85165312034
SN - 0926-3373
VL - 339
JO - Applied Catalysis B: Environmental
JF - Applied Catalysis B: Environmental
M1 - 123104
ER -