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Direct visible light activation of a surface cysteine-engineered [NiFe]-hydrogenase by silver nanoclusters

DOI: 10.1039/C8EE02361A DOI Help

Authors: Liyun Zhang (University of Oxford) , Stephen E. Beaton (University of Oxford) , Stephen B. Carr (Research Complex at Harwell; University of Oxford) , Fraser A. Armstrong (University of Oxford)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Energy & Environmental Science , VOL 11 , PAGES 3342 - 3348

State: Published (Approved)
Published: October 2018

Open Access Open Access

Abstract: Genetically engineering a cysteine (thiolate) close to the distal [4Fe–4S] cluster of a [NiFe]-hydrogenase creates a highly specific target for attachment of Ag nanoclusters templated in polymethyl acrylate, the resulting ‘hard-wired’ enzyme catalysing rapid hydrogen evolution by visible light. The rate is further enhanced by binding to metal oxide nanoparticles – results of investigations focusing on P-25 TiO2 and including anatase TiO2, rutile TiO2, ZnO, SrTiO3 and ZrO2 leading to the proposal that these act as active or structural scaffolds to promote intra-assembly electron transfer.

Diamond Keywords: Artificial Photosynthesis; Solar Fuel; Enzymes

Subject Areas: Chemistry, Biology and Bio-materials, Energy

Instruments: I04-1-Macromolecular Crystallography (fixed wavelength)

Added On: 04/04/2019 08:30


Discipline Tags:

Earth Sciences & Environment Sustainable Energy Systems Energy Climate Change Physical Chemistry Biochemistry Catalysis Chemistry Structural biology Life Sciences & Biotech

Technical Tags:

Diffraction Macromolecular Crystallography (MX)