DOI: 10.1039/d6ee02476a ISSN: 1754-5692
Local pH control for impure-water-fed bipolar-membrane electrolyzers
Sanghwi Han, Gwan Hyun Choi, Wenbo Zhang, Dawei Xi, Duha Syar, Jaehyuk Shim, Jang Yong Lee, Thomas F. Jaramillo, Jaeyune Ryu, Shannon W. BoettcherWe show that the pH gradient at the catalyst–ion exchange membrane interface in a seawater bipolar-membrane electrolyzer can be mitigated by reducing the catalyst–membrane distance. We further show how water transport can be balanced at steady state.