Glycerol waste valorization to mesoxalic acid over a bimetallic Pt-Pd/CNT catalyst in alkaline medium

Glycerol waste valorization to mesoxalic acid over a bimetallic Pt-Pd/CNT catalyst in alkaline medium

Glycerol electro-oxidation offers a green route to produce the high value added chemicals. Here in, we report the glycerol electro-oxidation over a series of multi walled carbon nano tubes supported monometallic (Pt/CNT and Pd/CNT) and bimetallic (Pt-Pd/CNT) catalysts in alkaline medium. The cyclic...

Full description

Bibliographic Details
Main Author: Ahmad, M. S.
Format: Article
Language:English
Published: American Scientific Publishers 2019
Subjects:
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/27579/
http://umpir.ump.edu.my/id/eprint/27579/1/Glycerol%20waste%20valorization%20to%20mesoxalic%20acid%20over1.pdf
id ump-27579
recordtype eprints
spelling ump-275792020-01-28T04:28:45Z http://umpir.ump.edu.my/id/eprint/27579/ Glycerol waste valorization to mesoxalic acid over a bimetallic Pt-Pd/CNT catalyst in alkaline medium Ahmad, M. S. TP Chemical technology Glycerol electro-oxidation offers a green route to produce the high value added chemicals. Here in, we report the glycerol electro-oxidation over a series of multi walled carbon nano tubes supported monometallic (Pt/CNT and Pd/CNT) and bimetallic (Pt-Pd/CNT) catalysts in alkaline medium. The cyclic voltammetry, linear sweep voltammetry and chronoamperometry measurements were used to evaluate the activity and stability of the catalysts. The Pt-Pd/CNT electrocatalyst exhibited the highest activity in terms of higher current density (129.25 A/m2) and electrochemical surface area (382 m2/g). The glycerol electro-oxidation products formed at a potential of 0.013 V were analyzed systematically by high performance liquid chromatography. Overall, six compounds were found including mesoxalic acid, 1,3-dihydroxyacetone, glyceraldehyde, glyceric acid, tartronic acid and oxalic acid. A highest mesoxalic acid selectivity of 86.42 % was obtained for Pt-Pd/CNT catalyst while a maximum tartronic acid selectivity of 50.17 % and 46.02 % was achieved for Pd/CNT and Pt/CNT respectively. It was found that the introduction of Pd into Pt/CNT lattice facilitated the formation of C3 products in terms of maximum selectivity achieved (86.42 %) while the monometallic catalysts (Pd/CNT and Pt/CNT) showed a poor performance in comparison to their counterpart. American Scientific Publishers 2019 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/27579/1/Glycerol%20waste%20valorization%20to%20mesoxalic%20acid%20over1.pdf Ahmad, M. S. (2019) Glycerol waste valorization to mesoxalic acid over a bimetallic Pt-Pd/CNT catalyst in alkaline medium. Journal of Nanoscience and Nanotechnology. pp. 1-29. ISSN 1533-4880 (Print); 1533-4899 (Online) (Submitted)
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Ahmad, M. S.
Glycerol waste valorization to mesoxalic acid over a bimetallic Pt-Pd/CNT catalyst in alkaline medium
description Glycerol electro-oxidation offers a green route to produce the high value added chemicals. Here in, we report the glycerol electro-oxidation over a series of multi walled carbon nano tubes supported monometallic (Pt/CNT and Pd/CNT) and bimetallic (Pt-Pd/CNT) catalysts in alkaline medium. The cyclic voltammetry, linear sweep voltammetry and chronoamperometry measurements were used to evaluate the activity and stability of the catalysts. The Pt-Pd/CNT electrocatalyst exhibited the highest activity in terms of higher current density (129.25 A/m2) and electrochemical surface area (382 m2/g). The glycerol electro-oxidation products formed at a potential of 0.013 V were analyzed systematically by high performance liquid chromatography. Overall, six compounds were found including mesoxalic acid, 1,3-dihydroxyacetone, glyceraldehyde, glyceric acid, tartronic acid and oxalic acid. A highest mesoxalic acid selectivity of 86.42 % was obtained for Pt-Pd/CNT catalyst while a maximum tartronic acid selectivity of 50.17 % and 46.02 % was achieved for Pd/CNT and Pt/CNT respectively. It was found that the introduction of Pd into Pt/CNT lattice facilitated the formation of C3 products in terms of maximum selectivity achieved (86.42 %) while the monometallic catalysts (Pd/CNT and Pt/CNT) showed a poor performance in comparison to their counterpart.
format Article
author Ahmad, M. S.
author_facet Ahmad, M. S.
author_sort Ahmad, M. S.
title Glycerol waste valorization to mesoxalic acid over a bimetallic Pt-Pd/CNT catalyst in alkaline medium
title_short Glycerol waste valorization to mesoxalic acid over a bimetallic Pt-Pd/CNT catalyst in alkaline medium
title_full Glycerol waste valorization to mesoxalic acid over a bimetallic Pt-Pd/CNT catalyst in alkaline medium
title_fullStr Glycerol waste valorization to mesoxalic acid over a bimetallic Pt-Pd/CNT catalyst in alkaline medium
title_full_unstemmed Glycerol waste valorization to mesoxalic acid over a bimetallic Pt-Pd/CNT catalyst in alkaline medium
title_sort glycerol waste valorization to mesoxalic acid over a bimetallic pt-pd/cnt catalyst in alkaline medium
publisher American Scientific Publishers
publishDate 2019
url http://umpir.ump.edu.my/id/eprint/27579/
http://umpir.ump.edu.my/id/eprint/27579/1/Glycerol%20waste%20valorization%20to%20mesoxalic%20acid%20over1.pdf
first_indexed 2023-09-18T22:43:21Z
last_indexed 2023-09-18T22:43:21Z
_version_ 1777417061713051648

Similar Items