@article{327d6aae80cd4c9bbf262d853e66e238,
title = "Electrocatalytic Oxidation of Glycerol to Formic Acid by CuCo2O4Spinel Oxide Nanostructure Catalysts",
abstract = "The electrochemical oxidation of abundantly available glycerol for the production of value-added chemicals, such as formic acid, could be a promising approach to utilize glycerol more effectively and to meet the future demand for formic acid as a fuel for direct or indirect formic acid fuel cells. Here we report a comparative study of a series of earth-abundant cobalt-based spinel oxide (MCo2O4, M = Mn, Fe, Co, Ni, Cu, and Zn) nanostructures as robust electrocatalysts for the glycerol oxidation to selectively produce formic acid. Their intrinsic catalytic activities in alkaline solution follow the sequence of CuCo2O4 > NiCo2O4 > CoCo2O4 > FeCo2O4 > ZnCo2O4 > MnCo2O4. Using the best-performing CuCo2O4 catalyst directly integrated onto carbon fiber paper electrodes for the bulk electrolysis reaction of glycerol oxidation (pH = 13) at the constant potential of 1.30 V vs reversible hydrogen electrode (RHE), a high selectivity of 80.6% for formic acid production and an overall Faradaic efficiency of 89.1% toward all value-added products were achieved with a high glycerol conversion of 79.7%. Various structural characterization techniques confirm the stability of the CuCo2O4 catalyst after electrochemical testing. These results open up opportunities for studying earth-abundant electrocatalysts for efficient and selective oxidation of glycerol to produce formic acid or other value-added chemicals.",
keywords = "biomass conversion, electrocatalysis, formic acid, fuel cell, glycerol oxidation, spinel oxides",
author = "Xiaotong Han and Hongyuan Sheng and Chang Yu and Walker, {Theodore W.} and Huber, {George W.} and Jieshan Qiu and Song Jin",
note = "Funding Information: This research was partially supported by the National Science Foundation (NSF) Grant DMR-1508558 to S.J. and H.S. for the materials synthesis. X.H. thanks the China Scholarship Council (CSC) for support. J.Q and C.Y. thanks the National Natural Science Foundation of China (NSFC, Grant No. 51872035), Fundamental Research Funds for the Central Universities (Grant No. DUT19LAB20), Xingliao Support Program for Young Talent of Liaoning Province (Grant No. XLYC1807002), Xinghai Scholarship of Dalian University of Technology, and the National Key Research Development Program of China (Grant No. 2016YFB0101201) for support. T.W.W was supported by the Great Lakes Bioenergy Research Center, U.S. Department of Energy under Award Numbers DE-SC0018409. The authors gratefully acknowledge use of facilities and instrumentation at the UW-Madison Wisconsin Centers for Nanoscale Technology (wcnt.wisc.edu) partially supported by the NSF through the University of Wisconsin Materials Research Science and Engineering Center (DMR-1720415). Funding Information: This research was partially supported by the National Science Foundation (NSF) Grant DMR-1508558 to S.J. and H.S. for the materials synthesis. X.H. thanks the China Scholarship Council (CSC) for support. J.Q and C.Y. thanks the National Natural Science Foundation of China (NSFC, Grant No. 51872035), Fundamental Research Funds for the Central Universities (Grant No. DUT19LAB20), Xingliao Support Program for Young Talent of Liaoning Province (Grant No. XLYC1807002) Xinghai Scholarship of Dalian University of Technology, and the National Key Research Development Program of China (Grant No. 2016YFB0101201) for support. T.W.W was supported by the Great Lakes Bioenergy Research Center, U.S. Department of Energy under Award Numbers DE-SC0018409. The authors gratefully acknowledge use of facilities and instrumentation at the UW-Madison Wisconsin Centers for Nanoscale Technology (wcnt.wisc.edu) partially supported by the NSF through the University of Wisconsin Materials Research Science and Engineering Center (DMR-1720415). Publisher Copyright: Copyright {\textcopyright} 2020 American Chemical Society.",
year = "2020",
month = jun,
day = "19",
doi = "10.1021/acscatal.0c01498",
language = "English (US)",
volume = "10",
pages = "6741--6752",
journal = "ACS Catalysis",
issn = "2155-5435",
publisher = "American Chemical Society",
number = "12",
}