Shielded goethite catalyst that enables fast water dissociation in bipolar membranes.

ABSTRACT: Optimal pH conditions for efficient artificial photosynthesis, hydrogen/oxygen evolution reactions, and photoreduction of carbon dioxide are now successfully achievable with catalytic bipolar membranes-integrated water dissociation and in-situ acid-base generations. However, inefficiency and instability are severe issues in state-of-the-art membranes, which need to urgently resolve with systematic membrane designs and innovative, inexpensive junctional catalysts. Here we show a shielding and in-situ formation strategy of fully-interconnected earth-abundant goethite Fe⁺³O(OH) catalyst, which lowers the activation energy barrier from 5.15 to 1.06 eV per HO - H bond and fabricates energy-efficient, cost-effective, and durable shielded catalytic bipolar membranes. Small water dissoc

SUBMITTER: Shehzad MA 

PROVIDER: S-EPMC7782813 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature