Issue 9, 2014
From the journal:

Inorganic Chemistry Frontiers

A biomimetic photoelectrochemical device from a molecular heterometallic sodium–manganese water splitting catalyst†

C. R. Raymond Gan,ab   Zhaolin Liu,b   Shi-Qiang Bai,b   Siok Wei Tay,b   Xiaoming Ge,b   Ji-En Wuc  and  T. S. Andy Hor*bc  

* Corresponding authors

a NUS Graduate School for Integrative Sciences and Engineering, Center for Life Sciences, #05-01, 28 Medical Drive, Singapore 117456, Singapore

b Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 3 Research Link, Singapore

c Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore
E-mail: andyhor@nus.edu.sg

Abstract

A photoelectrochemical device for water splitting has been fabricated from a new water stable molecular [Na2Mn4] complex that acts as an in situ precursor towards NaMn2Ox nanoparticles under catalytic conditions when immobilized within a conductive PEDOT : PSS/Nafion composite film for optimal electron transport. The optimized photoanode architecture of ITO/TiO2/Ru/60% PEDOT : PSS/Na2Mn4/Nafion resulted in a water oxidation onset potential of 1.35 V (vs. RHE) and achieved a maximum current density of 1.31 mA cm−2 (initial) and 0.80 mA cm−2 (stabilized) at 1.8 V (vs. RHE) at pH 6.5.

Graphical abstract: A biomimetic photoelectrochemical device from a molecular heterometallic sodium–manganese water splitting catalyst

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Article information

DOI
https://doi.org/10.1039/C4QI00081A
Article type
Research Article
Submitted
08 Jun 2014
Accepted
08 Sep 2014
First published
10 Sep 2014

Inorg. Chem. Front., 2014,1, 705-711

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A biomimetic photoelectrochemical device from a molecular heterometallic sodium–manganese water splitting catalyst

C. R. R. Gan, Z. Liu, S. Bai, S. W. Tay, X. Ge, J. Wu and T. S. A. Hor, Inorg. Chem. Front., 2014, 1, 705 DOI: 10.1039/C4QI00081A

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