Fe2O3 nanoparticles immobilized on N and S codoped C as an efficient multifunctional catalyst for oxygen reduction reaction and overall water electrolysis

Chao, Shujun; Xia, Qingyun; Wang, Ge; Zhang, Xiaoyuan

doi:10.1016/j.ijhydene.2018.12.179

Cited by 22 publications

(9 citation statements)

References 42 publications

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“…However, improving the catalytic activity of these materials remains a significant challenge due to their poor electrical conductivity. , In recent years, numerous research studies have demonstrated the excellent electrocatalytic properties of transition-metal-based compounds. Especially, transition-metal oxides (TMOs) display particularly high catalytic activity and remarkable ability to withstand alkaline conditions .…”

Section: Introductionmentioning

confidence: 99%

Hierarchically Self-Supporting Phosphorus-Doped CoMoO₄ Nanoflowers Arrays toward Efficient Hydrogen Evolution Reaction

Wen

Wang

et al. 2022

ACS Appl. Energy Mater.

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Advances in non-noble-metal electrocatalysts for sustainable hydrogen evolution reactions (HERs) have had a significant impact on the production of renewable clean energy (H 2 ). Benefitting from high-efficiency synthesis methods, a controlled catalyst P-CoMoO 4 @Ni with a hierarchical structure with different morphologies on the surface of nickel foam (NF) has been synthesized. In particular, the optimized nanoflower oxide array electrode P-CoMoO 4 @Ni-1 performed as the best catalyst for HER with a large specific surface area and low charge-transfer resistance and was capable of delivering current densities of 100 and 150 mA cm −2 under low overpotentials of 98 and 162 mV, respectively. In addition, this work demonstrated that catalyst arrays adopted by polyoxometalates (POMs) as precursors with uniform nanoflower structures might be able to improve electrocatalytic performance as well as provide fundamental research of catalyst materials with high efficiency at low potentials in HER.

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Section: Introductionmentioning

confidence: 99%

Hierarchically Self-Supporting Phosphorus-Doped CoMoO₄ Nanoflowers Arrays toward Efficient Hydrogen Evolution Reaction

Wen

Wang

et al. 2022

ACS Appl. Energy Mater.

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“…Because of their low price, lack of pollution, and superb durability, Fe-based oxides electrocatalysts have received intense attention so far. However, restricted by their poor conductivity, , it is a challenge to further improve their catalytic activity. Furthermore, recent studies have displayed that the preparation processes and regulation control strategies of recent research on ferric oxide are seemingly complicated, , and heteroatom doping would be an effective and simple approach to enhance the conductivity and improve the intrinsic activity of transition metal oxide. − For instance, Zhang et al demonstrated that the incorporation of a P anion into Fe 3 O 4 could evidently improve its HER catalytic performance.…”

Section: Introductionmentioning

confidence: 99%

Construction of Fe₂O₃ Nanosheet Arrays by Sulfur Doping toward Efficient Alkaline Hydrogen Evolution

Hao

Zhang

Gao

et al. 2022

ACS Appl. Energy Mater.

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It is indispensable to explore earth-abundant and high-efficiency transition-metal-oxide electrocatalysts toward the hydrogen evolution reaction (HER). However, their catalytic performance is impeded by the poor conductivity. Herein we rationally design and manufacture sulfur-doped Fe2O3 nanosheet arrays grown on iron foam (S-Fe2O3/IF) with enhanced HER performance in alkaline media. The obtained catalyst exhibits a low overpotential of 134 mV to achieve a current density of 10 mA cm–2 with a small Tafel slope of 76 mV dec–1 and shows an excellent long-term durability with barely any degradation for 50 h. The density functional theory calculation and experimental results demonstrate that the sulfur anion could optimize adsorption free energies of hydrogen/water and improve the intrinsic activity of Fe2O3. This work not only develops a catalyst with highly efficient performance but also provides design guidance to rationally manufacture an earth-abundant-element electrocatalyst for large-scale water splitting to hydrogen.

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“…Table S4 (Supporting Information) and Figure 4f compare the catalytic activity of TM@CN x for HER with the most promising TM‐based electrocatalysts in the recent literature. [ 50–58 ] The literature search confirms that Co and Ni‐based catalysts show outstanding properties toward the HER, followed by Fe and Mn. Cu‐based electrocatalysts show insufficient performance to prepare an adequate HER electrocatalyst, in agreement with our experimental results.…”

Section: Resultsmentioning

confidence: 99%

“…e) Literature search of transition metal‐based electrocatalysts for the hydrogen evolution reaction. [ 50–58 ] Blue, yellow, orange, green and violet represent Fe‐, Ni‐, Co‐, Cu‐ and Mn‐based catalysts, respectively. The solid symbols correspond to the data obtained in this work.…”

Section: Resultsmentioning

confidence: 99%

Advanced Design of Metal Nanoclusters and Single Atoms Embedded in C₁N₁‐Derived Carbon Materials for ORR, HER, and OER

Quílez‐Bermejo

García‐Dalí

Daouli

et al. 2023

Adv Funct Materials

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Single atoms and nanoclusters of Fe, Ni, Co, Cu, and Mn are systematically designed and embedded in a well‐defined C1N1‐type material that has internal cavities of ≈0.6 nm based on four N atoms. These N atoms serve as perfect anchoring points for the nucleation of small nanoclusters of different metal natures through the creation of metal‐nitrogen (TM‐N4) bonds. After pyrolysis at 800 °C, TM@CNx‐type structures are obtained, where TM is the transition metal and x < 1. Fe@CNx and Co@CNx are the most promising for oxygen reduction reaction and hydrogen evolution reaction, respectively, with a Pt‐like performance, and Ni@CNx is the most active for oxygen evolution reaction (OER) with an EOER of 1.59 V versus RHE, far outperforming the commercial IrO2 (EOER = 1.72 V). This systematic and benchmarking study can serve as a basis for the future design of advanced multi‐functional electrocatalysts by modulating and combining the metallic nature of nanoclusters and single atoms.

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Fe2O3 nanoparticles immobilized on N and S codoped C as an efficient multifunctional catalyst for oxygen reduction reaction and overall water electrolysis

Cited by 22 publications

References 42 publications

Hierarchically Self-Supporting Phosphorus-Doped CoMoO₄ Nanoflowers Arrays toward Efficient Hydrogen Evolution Reaction

Hierarchically Self-Supporting Phosphorus-Doped CoMoO₄ Nanoflowers Arrays toward Efficient Hydrogen Evolution Reaction

Construction of Fe₂O₃ Nanosheet Arrays by Sulfur Doping toward Efficient Alkaline Hydrogen Evolution

Advanced Design of Metal Nanoclusters and Single Atoms Embedded in C₁N₁‐Derived Carbon Materials for ORR, HER, and OER

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Fe2O3 nanoparticles immobilized on N and S codoped C as an efficient multifunctional catalyst for oxygen reduction reaction and overall water electrolysis

Cited by 22 publications

References 42 publications

Hierarchically Self-Supporting Phosphorus-Doped CoMoO4 Nanoflowers Arrays toward Efficient Hydrogen Evolution Reaction

Hierarchically Self-Supporting Phosphorus-Doped CoMoO4 Nanoflowers Arrays toward Efficient Hydrogen Evolution Reaction

Construction of Fe2O3 Nanosheet Arrays by Sulfur Doping toward Efficient Alkaline Hydrogen Evolution

Advanced Design of Metal Nanoclusters and Single Atoms Embedded in C1N1‐Derived Carbon Materials for ORR, HER, and OER

Contact Info

Product

Resources

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Hierarchically Self-Supporting Phosphorus-Doped CoMoO₄ Nanoflowers Arrays toward Efficient Hydrogen Evolution Reaction

Hierarchically Self-Supporting Phosphorus-Doped CoMoO₄ Nanoflowers Arrays toward Efficient Hydrogen Evolution Reaction

Construction of Fe₂O₃ Nanosheet Arrays by Sulfur Doping toward Efficient Alkaline Hydrogen Evolution

Advanced Design of Metal Nanoclusters and Single Atoms Embedded in C₁N₁‐Derived Carbon Materials for ORR, HER, and OER