The 79th JSAP Autumn Meeting, 2018

Presentation information

Oral presentation

1 Interdisciplinary Physics and Related Areas of Science and Technology » 1.4 Energy conversion, storage, resources and environment

[20p-231A-1~10] 1.4 Energy conversion, storage, resources and environment

Thu. Sep 20, 2018 1:15 PM - 4:00 PM 231A (231-1)

Kazuya Oguri(Tokai Univ.), Masashi Sato(Tokai Univ.)

1:30 PM - 1:45 PM

[20p-231A-2] Investigation of Surface Modification of Semiconductor Photoelectrodes for Stabilization of Photoelectrochemical Cells for Solar-Driven Hydrogen Production

〇(D)Hiroyuki Kaneko1, Tsutomu Minegishi1, Hiroyuki Kobayashi1, Yongbo Kuang1, Taro Yamada1, Kazunari Domen1 (1.Univ. Tokyo)

Keywords:water splitting, photoelectrode, hydrogen production

Water splitting using a photoelectrochemical cell, which consists of semiconductor photoelectrodes connected in a series, is a promising method to produce carbon-free hydrogen from sunlight and water. However, it has been known that heavy metal cations eluted from the photoelectrode surface into the electrolyte can cause catalyst poisoning and degradation of the cell performance. In this work, we attempted suppression of the elution by surface coating of photoanodes with anion conductive ionomers.