ZnO nanorod electrodes for hydrogen evolution and storage

S. Harinipriya; B. Usmani; D. J. Rogers; V. E. Sandana; F. Hosseini Teherani; A. Lusson; P. Bove; H.-J. Drouhin; M. Razeghi

doi:10.1117/12.927622

29 February 2012 ZnO nanorod electrodes for hydrogen evolution and storage

S. Harinipriya, B. Usmani, D. J. Rogers, V. E. Sandana, F. Hosseini Teherani, A. Lusson, P. Bove, H.-J. Drouhin, M. Razeghi

Author Affiliations +

Proceedings Volume 8263, Oxide-based Materials and Devices III; 82631Y (2012) https://doi.org/10.1117/12.927622
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

Due to the attractive combination of a relatively high specific heat of combustion with a large specific energy capacity, molecular hydrogen (H₂) is being investigated for use as an alternative to fossil fuels. Energy-efficient H₂ production and safe storage remain key technical obstacles to implementation of an H₂ based economy, however. ZnO has been investigated for use as an alternative photocatalytic electrode to TiO₂ for solarpowered photo-electro-chemical (PEC) electrolysis, in which H₂ is generated by direct water splitting in a cell with a metal cathode and a semiconducting anode. In this investigation, ZnO NR grown on Si (100) substrates by pulsed laser deposition were investigated for use as electrodes in the Hydrogen Evolution Reaction (HER). The electrochemical potential and Fermi energy of the ZnO NR were estimated from the electrochemical current density in acid and alkaline solutions via phenomenological thermodynamic analysis. As well as acting as an effective electrocalytic cathode, the ZnO NR appear to operate as a hydrogen reservoir. These results indicate that the ZnO NR have excellent potential for the storage of evolved H₂.

Citation Download Citation

S. Harinipriya, B. Usmani, D. J. Rogers, V. E. Sandana, F. Hosseini Teherani, A. Lusson, P. Bove, H.-J. Drouhin, and M. Razeghi "ZnO nanorod electrodes for hydrogen evolution and storage", Proc. SPIE 8263, Oxide-based Materials and Devices III, 82631Y (29 February 2012); https://doi.org/10.1117/12.927622

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available