Efficient direct seawater electrolysers using selective alkaline NiFe-LDH as OER catalyst in asymmetric electrolyte feeds

Dresp Soeren; Ngo Thanh Trung; Klingenhof Malte; Brueckner Sven; Hauke Philipp; Strasser Peter

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Efficient direct seawater electrolysers using selective alkaline NiFe-LDH as OER catalyst in asymmetric electrolyte feeds

机译：使用选择性碱性NIFE-LDH作为不对称电解质饲料中的oer催化剂的有效直接海水电解器

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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 O(2)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.

机译：直接海水电解面临着基本催化和过程工程挑战。在这里，我们展示了使用非对称电解质饲料的有前途的海水电解槽配置。与商业IROX基催化剂相比，我们进一步研究了NiFe-LDH的NiFe-LDH中的NiFe-LDH的效率。除了Irox之外，NiFe-LDH可防止Cl（ - ）的氧化，并且即使在超过3.0V细胞的细胞电位下，均对于碱化海水中的氧进化反应显得高度选择性。

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来源
《Energy & environmental science》 |2020年第6期|1725-1729|共5页
作者
Dresp Soeren; Ngo Thanh Trung; Klingenhof Malte; Brueckner Sven; Hauke Philipp; Strasser Peter;
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Tech Univ Berlin Dept Chem Str Des 17 Juni 124 D-10623 Berlin Germany;

Tech Univ Berlin Dept Chem Str Des 17 Juni 124 D-10623 Berlin Germany;

Tech Univ Berlin Dept Chem Str Des 17 Juni 124 D-10623 Berlin Germany;

Tech Univ Berlin Dept Chem Str Des 17 Juni 124 D-10623 Berlin Germany;

Tech Univ Berlin Dept Chem Str Des 17 Juni 124 D-10623 Berlin Germany;

Tech Univ Berlin Dept Chem Str Des 17 Juni 124 D-10623 Berlin Germany;

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1. Nickel/cobalt oxide as a highly efficient OER electrocatalyst in an alkaline polymer electrolyte water electrolyzer [J] . Chi Jun, Yu Hongmei, Li Guangfu, RSC Advances . 2016,第93期

机译：镍/钴氧化物作为碱性聚合物电解质水电解槽中的高效oer电催化剂
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Efficient direct seawater electrolysers using selective alkaline NiFe-LDH as OER catalyst in asymmetric electrolyte feeds

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