Intrinsically Porous Polymer Protects Catalytic Gold Particles for Enzymeless Glucose Oxidation |
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| Authors: | Yuanyang Rong Richard Malpass‐Evans Mariolino Carta Neil B McKeown Gary A Attard Frank Marken |
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| Institution: | 1. Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK;2. School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK;3. School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh, EH9 3JJ, UK |
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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. |
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| Keywords: | Glucose Fuel cells Sensors Microporosity Membranes Electrocatalysis |
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