TY - JOUR
T1 - Nitrogen-phosphorous co-doped palladium electrocatalyst for glycerol electro-oxidation reaction (GEOR)
T2 - An efficient system for mesoxalic acid and dihydroxyacetone production
AU - Sheraz Ahmad, Muhammad
AU - Hoong Ng, Kim
AU - Chen, Ching Lung
AU - Kabir, Faryal
AU - Witoon, Thongthai
AU - Wu, Ta Yeong
AU - Kui Cheng, Chin
N1 - Funding Information:
This project was funded from Trans-Disciplinary Research Grant Scheme provided by the Malaysia Ministry of Education (project number: RDU191802-1). The first author acknowledges Universiti Malaysia Pahang for providing studentship PGRS180335. Chin Kui Cheng would like to acknowledge the Khalifa University (RC2-2018-024) Phase 2 fund with project reference number 8474000133.
Funding Information:
This project was funded from Trans-Disciplinary Research Grant Scheme provided by the Malaysia Ministry of Education (project number: RDU191802-1 ). The first author acknowledges Universiti Malaysia Pahang for providing studentship PGRS180335 . Chin Kui Cheng would like to acknowledge the Khalifa University ( RC2-2018-024 ) Phase 2 fund with project reference number 8474000133.
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2023/2
Y1 - 2023/2
N2 - Electro-oxidation reaction of glycerol (GEOR) is a promising and eco-friendly technique for producing commercially valuable organic acids. In contrast to conventional non-metallic doping into single or multiwalled carbon nanotubes, our work reported the incorporation of N, and P into the Pd/CNTs framework for selective oxidation of glycerol to 1, 3-dihydroxyacetone and mesoxalic acid. Electrochemical and physicochemical characterization showed that the NP doped/PdCNTs has superior electrocatalytic performance for GEOR in alkaline media compared to counter catalysts. NP doped/PdCNTs exhibits better resistivity (If/Ib = 1.71) and requires only 0.09 V electrocatalysis voltage to achieve 76.67 mA cm−2 current density, demonstrating an energy-efficient and cost-competitive method to produce mesoxalic acid and dihydroxyacetone. At 0.09 V vs Ag/AgCl in 0.5 M Gly/0.5 M KOH, the Pd mass activity of NP doped/PdCNTs was 307.30 mAmg-1 Pd, representing 2.45, 1.06, and 1.051 times higher than Pd/CNTs, N doped/PdCNTs, and P doped/PdCNTs, respectively. The yield of 1, 3-dihydroxyacetone was 29.76 times higher than Pd/CNTs, 24.06 times higher than N doped/PdCNTs, and 1.06 times higher than P doped/PdCNTs.
AB - Electro-oxidation reaction of glycerol (GEOR) is a promising and eco-friendly technique for producing commercially valuable organic acids. In contrast to conventional non-metallic doping into single or multiwalled carbon nanotubes, our work reported the incorporation of N, and P into the Pd/CNTs framework for selective oxidation of glycerol to 1, 3-dihydroxyacetone and mesoxalic acid. Electrochemical and physicochemical characterization showed that the NP doped/PdCNTs has superior electrocatalytic performance for GEOR in alkaline media compared to counter catalysts. NP doped/PdCNTs exhibits better resistivity (If/Ib = 1.71) and requires only 0.09 V electrocatalysis voltage to achieve 76.67 mA cm−2 current density, demonstrating an energy-efficient and cost-competitive method to produce mesoxalic acid and dihydroxyacetone. At 0.09 V vs Ag/AgCl in 0.5 M Gly/0.5 M KOH, the Pd mass activity of NP doped/PdCNTs was 307.30 mAmg-1 Pd, representing 2.45, 1.06, and 1.051 times higher than Pd/CNTs, N doped/PdCNTs, and P doped/PdCNTs, respectively. The yield of 1, 3-dihydroxyacetone was 29.76 times higher than Pd/CNTs, 24.06 times higher than N doped/PdCNTs, and 1.06 times higher than P doped/PdCNTs.
KW - Dihydroxyacetone
KW - Electro-oxidation
KW - Glycerol
KW - Mesoxalic acid
KW - Nitrogen/Phosphorous Doping
UR - http://www.scopus.com/inward/record.url?scp=85140927398&partnerID=8YFLogxK
U2 - 10.1016/j.fuel.2022.126471
DO - 10.1016/j.fuel.2022.126471
M3 - Article
AN - SCOPUS:85140927398
SN - 0016-2361
VL - 333
JO - Fuel
JF - Fuel
M1 - 126471
ER -