Creating a Low-Potential Redox Polymer for Efficient Electroenzymatic CO2 Reduction

Yuan M., Sahin S., Cai R., Abdellaoui S., Hickey D. P., Minteer S. D., ...More

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, vol.57, no.22, pp.6582-6586, 2018 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 57 Issue: 22
  • Publication Date: 2018
  • Doi Number: 10.1002/anie.201803397
  • Journal Name: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.6582-6586
  • Süleyman Demirel University Affiliated: Yes

Abstract

Increasing greenhouse gas emissions have resulted in greater motivation to find novel carbon dioxide (CO2) reduction technologies, where the reduction of CO2 to valuable chemical commodities is desirable. Molybdenum-dependent,formate dehydrogenase (Mo-FDH) from Escherichia coli is a metalloenzyme that is able to interconvert formate and CO, We describe a low-potential redox polymei; synthesized by a facile method, that contains cobaltocene (grafted to poly(allylumine), Cc-PAA) to simultaneously mediate electrons to Mo-FDH and immobilize Mo-FDH at the surface of carbon electrode. The resulting bioelectrode reduces CO2 to formate with a high Faradaic efficiency of 991 +/- 5 % at a mild applied potential of -0.66 V vs. SHE.