Electrocatalytic Conversion of Glycerol to Oxalate on Ni Oxide Nanoparticles-Modified Oxidized Multiwalled Carbon Nanotubes | Sciact - CRIS-system of Boreskov Institute of Catalysis

Electrocatalytic Conversion of Glycerol to Oxalate on Ni Oxide Nanoparticles-Modified Oxidized Multiwalled Carbon Nanotubes Full article

Journal

ACS Catalysis
ISSN: 2155-5435

Output data

Year: 2022, Volume: 12, Number: 2, Pages: 982-992 Pages count : 11 DOI: 10.1021/acscatal.1c04150

Tags

glycerol oxidation; nickel oxide; multiwalled carbon nanotubes; hydrogen production; value-added chemicals; oxalic acid

Authors

Morales Dulce M. ¹ , Jambrec Daliborka ¹ , Kazakova Mariya A. ² , Braun Michael ^3,4 , Sikdar Nivedita ¹ , Koul Adarsh ¹ , Brix Ann Cathrin ¹ , Seisel Sabine ¹ , Andronescu Corina ^3,4 , Schuhmann Wolfgang ¹

Affiliations

1	Analytical Chemistry − Center of Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, D-44780 Bochum, Germany
2	Boreskov Institute of Catalysis, SB RAS, Lavrentieva 5, 630090 Novosibirsk, Russia
3	Chemical Technology III, Faculty of Chemistry, University of Duisburg-Essen, Carl-Benz-Straße 199, 47057 Duisburg, Germany
4	CENIDE Center for Nanointegration, University of Duisburg-Essen, Carl-Benz-Straße 199, 47057 Duisburg, Germany

Funding (3)

1	Ministry of Science and Higher Education of the Russian Federation	0239-2021-0010
2	German Research Foundation	433304702
3	German Research Foundation	433304666

Electrocatalytic oxidation of glycerol (GOR) as the anode reaction in water electrolysis facilitates the production of hydrogen at the cathode at a substantially lower cell voltage compared with the oxygen evolution reaction. It simultaneously provides the basis for the production of value-added compounds at the anode. We embedded in multiwalled carbon nanotubes as GOR catalysts. Out of the four investigated composites, the Ni-based catalyst exhibits the highest catalytic activity toward the GOR according to rotating disk electrode voltammetry, reaching a current density of 10 mA cm(-2) already at 1.31 V vs RHE, a potential below the formation of Ni3+. Chronoamperometry conducted in a flow-through cell followed by HPLC analysis is used to identify and quantify the GOR products over time, revealing that the applied potential, electrolyte concentration, and duration of the experiment impact strongly the composition of the products' mixture. Upon optimization, the GOR is directed toward oxalate production. Moreover, oxalate is not further converted and hence accumulates as a major organic product under the chosen conditions in a concentration ratio of 60:1 with acetate as a minor product after 48 h electrolysis in 7 M KOH, which represents a promising route for the synthesis of this highly valued product.

Morales D.M. , Jambrec D. , Kazakova M.A. , Braun M. , Sikdar N. , Koul A. , Brix A.C. , Seisel S. , Andronescu C. , Schuhmann W.
Electrocatalytic Conversion of Glycerol to Oxalate on Ni Oxide Nanoparticles-Modified Oxidized Multiwalled Carbon Nanotubes
ACS Catalysis. 2022. V.12. N2. P.982-992. DOI: 10.1021/acscatal.1c04150 WOS Scopus РИНЦ AN OpenAlex

Submitted:	Sep 10, 2021
Accepted:	Dec 5, 2021
Published online:	Jan 3, 2022
Published print:	Jan 21, 2022

Web of science:	WOS:000740445700001
Scopus:	2-s2.0-85122734822
Elibrary:	48142304
Chemical Abstracts:	2022:4812
OpenAlex:	W4205191650

DB	Citing
Web of science	91
Scopus	94
Elibrary	82
OpenAlex	97