Direct seawater electrolysis faces fundamental catalytic and process engineering challenges. Here we demonstrate a promising seawater electrolyser configuration using asymmetric electrolyte feeds. We further investigated the faradaic O₂ efficiency of NiFe-LDH in alkalinized Cl⁻-containing electrolytes in comparison to commercial IrOx-based catalysts. Other than IrOx, NiFe-LDH prevents the oxidation of Cl⁻ and appears highly selective for the oxygen evolution reaction in alkalinized seawater even at cell potentials beyond 3.0 V_cell.

中文翻译：

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在非对称电解质进料中使用选择性碱性NiFe-LDH作为OER催化剂的高效直接海水电解器

直接海水电解面临着根本的催化和工艺工程挑战。在这里，我们展示了使用不对称电解质进料的有前途的海水电解槽配置。我们进一步研究法拉第Ø ₂镍铁-LDH的效率碱化氯^-相比于基于商用IROX催化剂含电解质。除了IROX，由NiFe-LDH防止氯的氧化^-和出现甚至在超出3.0V的电池电势在碱化海水中的析氧反应高选择性_细胞。