Alternative cost-effective electrodes for hydrogen production in saline water condition

M. Kovendhan, Hari Kang, Jong Sang Youn, Hyunwook Cho, Ki Joon Jeon

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

For the sustainable clean and green energy, hydrogen is considered as one of the prominent renewable energy source which attracted increasing interests in recent years. To produce this, one of the cheapest method is water electrolysis. But several challenges in water electrolysis are, to reduce the maintenance cost, energy consumption and high cost of platinum electrode material. So, in search of an alternative low cost and efficient electrode material, researchers are modifying various metals electrodes to replace the noble metal electrodes. Stainless steel (SS 304) is one of the types of carbon steel material commonly used for various applications. The aim of the work is to explore the stainless steel (SS 304), annealed at high temperature, with and without “hydrogen and argon” environment and tested the samples for hydrogen production in sea water condition (3.5% NaCl). Cr 2 O 3 and MnCr 2 O 4 spinel oxide formation was observed over the surface of the electrodes after annealing process. From Raman, X-ray Photoelectron Spectroscopy (XPS) and electrochemical measurements it was observed that, the sample prepared under hydrogen and argon environment is stable when compared with the rest of the samples. Decrease in relative amount of chromium oxide was observed for the sample annealed in air environment. The rate of production of hydrogen prepared under “hydrogen and argon” environment is higher and the results are discussed.

Original languageEnglish
Pages (from-to)5090-5098
Number of pages9
JournalInternational Journal of Hydrogen Energy
DOIs
StatePublished - 26 Feb 2019

Bibliographical note

Funding Information:
This research was supported by the Nano·Material Technology Development Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2016M3A7B4904328).

Funding Information:
This research was supported by the Nano·Material Technology Development Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning ( NRF-2016M3A7B4904328 ).

Publisher Copyright:
© 2018 Hydrogen Energy Publications LLC

Keywords

  • Annealing
  • Electrolysis
  • Hydrogen production
  • Sea water
  • Stainless steel

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