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Intrinsically porous polymer protects catalytic gold particles for enzymeless glucose oxidation

Rong, Yuanyang, Malpass-Evans, Richard, Carta, Mariolino, McKeown, Neil B., Attard, Gary Anthony and Marken, Frank 2014. Intrinsically porous polymer protects catalytic gold particles for enzymeless glucose oxidation. Electroanalysis 26 (5) , pp. 904-909. 10.1002/elan.201400085

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Abstract

The enzymeless glucose oxidation process readily occurs on nano-gold electrocatalyst at pH 7, but it is highly susceptible to poisoning (competitive binding), for example from protein or chloride. Is it shown here that gold nanoparticle catalyst can be protected against poisoning by a polymer of intrinsic microporosity (PIM-EA-TB with BET surface area 1027 m2 g−1). This PIM material when protonated, achieves a triple catalyst protection effect by (i) size selective repulsion of larger protein molecules (albumins) and (ii) membrane ion selection effects, and (iii) membrane ion activity effects. PIM materials allow “environmental control” to be introduced in electrocatalytic processes.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Subjects: Q Science > QD Chemistry
Uncontrolled Keywords: Glucose; Fuel cells; Sensors; Microporosity; Membranes; Electrocatalysis
Publisher: Wiley-Blackwell
ISSN: 1040-0397
Funders: EPSRC
Date of Acceptance: 8 March 2014
Last Modified: 18 Feb 2019 11:50
URI: http://orca-mwe.cf.ac.uk/id/eprint/59987

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