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Updated: Aug 6, 2026
10:21
Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
Published on: October 5, 2019
Bioinspired "Soil-Tree" Multiscale Engineered F-NiFeAl-LDH/MXene Heterostructures for Robust Photoelectrocatalytic
Huiqin Zhao1, Liangqi Gui1, Xiaojun Zeng1
1Jiangxi Key Laboratory of Advanced Ceramic Materials, School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen, China.
Small (Weinheim an Der Bergstrasse, Germany)
|July 24, 2026
Summary
This study presents a novel photoelectrocatalyst for oxygen evolution reaction (OER) using a "soil-tree" design. The catalyst achieves high efficiency and stability for industrial hydrogen production.
Area of Science:
- Materials Science
- Electrochemistry
- Catalysis
Background:
- Developing efficient and stable photoelectrochemical synergistic catalysts for the oxygen evolution reaction (OER) is critical for industrial hydrogen production.
- Optimizing active site utilization and bubble desorption kinetics simultaneously remains a significant challenge.
Purpose of the Study:
- To develop a multi-scale synergistically enhanced photoelectrocatalyst for OER with improved activity and stability.
- To investigate the biomimetic
- soil-tree
- approach for catalyst design.
Main Methods:
- In situ construction of a vertical F-NiFeAl-LDH nanosheet array on a monolayer MXene conductive substrate.
- Low-temperature gas-phase fluorination for atomic-level modification.
- Characterization of electronic structure, catalytic activity, and stability.
Main Results:
- The F-NFA-LDH/MX photoelectrocatalyst demonstrated an overpotential of 204 mV at 10 mA cm⁻² under illumination.
- Achieved stable operation for over 100 hours at 20 mA cm⁻².
- The
- soil-tree
- architecture enhanced electron transport, mass transport, and bubble desorption.
Conclusions:
- The developed catalyst offers a practical strategy for highly efficient energy conversion catalysts.
- Fluorination modification effectively enhanced intrinsic catalytic activity by reshaping electronic structure.
- The synergistic design provides superior light-harvesting and photoelectric synergy for OER.
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