Issue 13, 2016
From the journal:

Green Chemistry

Pt catalysts for efficient aerobic oxidation of glucose to glucaric acid in water†

Jechan Lee,a   Basudeb Saha*a  and  Dionisios G. Vlachos*ab  

* Corresponding authors

a Catalysis Center for Energy Innovation, University of Delaware, Newark, DE 19716, USA
E-mail: bsaha@udel.edu

b Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716, USA
E-mail: vlachos@udel.edu

Abstract

Glucaric acid, a promising bio-based chemical for the production of adipic acid, is produced on a commercial Pt/C catalyst via aerobic oxidation of glucose in water. Facile oxidation of gluconic acid, an intermediate oxidation product of glucose, under optimal conditions of an initial pH of 7.2, 80 °C, 13.8 bar O2 and a glucose/Pt molar ratio of 54, enabled a maximum glucaric acid yield of 74%, the highest yield reported to date. It is found that in an acidic solution, gluconic acid is the major product while in a highly basic solution, selectivity to glucaric acid is poor due to its C–C bond cleavage to low carbon chain carboxylic acids. High temperatures and high Pt loadings result in lower selectivity to glucaric acid. Recyclability and characterization studies reveal that the catalyst is stable after five cycles with no sign of Pt leaching into the solution.

Graphical abstract: Pt catalysts for efficient aerobic oxidation of glucose to glucaric acid in water

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/C6GC00460A
Article type
Paper
Submitted
17 Feb 2016
Accepted
03 May 2016
First published
04 May 2016

Green Chem., 2016,18, 3815-3822

Permissions

Request permissions

Pt catalysts for efficient aerobic oxidation of glucose to glucaric acid in water

J. Lee, B. Saha and D. G. Vlachos, Green Chem., 2016, 18, 3815 DOI: 10.1039/C6GC00460A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements