What question did this study set out to answer?

To investigate how diatomic doping of Ce and Mn in NiFe layered double hydroxide affects spin polarization and electrocatalytic efficiency.

February 12, 2026Journal of Materials Chemistry A0 citations

Regulating spin polarization by diatomic doping of a NiFe layered double hydroxide to achieve efficient electrocatalytic water splitting

HWHuimin Wen ZWZha-Xi Wan-Me YZYang Zhao

Key Points

To investigate how diatomic doping of Ce and Mn in NiFe layered double hydroxide affects spin polarization and electrocatalytic efficiency.
Utilized Ce and Mn as dopants in NiFe layered double hydroxide at controlled concentrations.
Analyzed the formation of high-valent Fe 4+ due to Ce doping.
Assessed the spin status of Fe to determine the impact of Mn doping.
Conducted water splitting tests to evaluate electrocatalytic performance.
Ce doping resulted in the presence of high-valent Fe 4+ configurations.
Mn doping induced high-spin Fe configurations, enhancing spin selectivity.
The doped NiFe-LDH exhibited superior performance in water splitting compared to undoped counterparts.

Abstract

Synergistic spin-regulation in NiFe-LDH is achieved via spatially isolated Ce and Mn doping. Ce creates high-valent Fe 4+ , while Mn induces high-spin Fe via strain, resulting in a highly active spin-selective channel for superior water splitting.

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