Nickel oxide–polypyrrole nanocomposite electrode materials for electrocatalytic water oxidation

Morales, Daniela V.; Astudillo, Catalina N.; Lattach, Youssef; Urbano, Bruno F.; Pereira, Eduardo; Rivas, Bernabé L.; Arnaud, Josiane; Putaux, Jean‐Luc; Sirach, Selim; Cobo, Saioa; Moutet, Jean‐Claude; Collomb, Marie‐Noëlle; Fortage, Jérôme

doi:10.1039/c7cy01949a

Cited by 21 publications

(19 citation statements)

References 123 publications

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“…The active protocols here show better performance and increased stability, which can apparently avoid the deactivation owing to the newly established structure. Nanostructured composites such as the nanostructured polypyrrole–NiO x hybrid displays a very high electrocatalytic OER performance in a nearly neutral solution (pH 9.2) with strong mass activities and TOFs 1.12 A mg −1 and 0.17 s −1 , respectively, at an overpotential of 0.61 V …”

Section: Nonprecious Metals Based Oer Electrocatalystsmentioning

confidence: 99%

Recent Advances in the Development of Water Oxidation Electrocatalysts at Mild pH

Zhao

Chen

et al. 2019

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Developing anodic oxygen evolution reaction (OER) electrocatalysts with high catalytic activities is of great importance for effective water splitting. Compared with the water‐oxidation electrocatalysts that are commonly utilized in alkaline conditions, the ones operating efficiently under neutral or near neutral conditions are more environmentally friendly with less corrosion issues. This review starts with a brief introduction of OER, the importance of OER in mild‐pH media, as well as the fundamentals and performance parameters of OER electrocatalysts. Then, recent progress of the rational design of electrocatalysts for OER in mild‐pH conditions is discussed. The chemical structures or components, synthetic approaches, and catalytic performances of the OER catalysts will be reviewed. Some interesting insights into the catalytic mechanism are also included and discussed. It concludes with a brief outlook on the possible remaining challenges and future trends of neutral or near‐neutral OER electrocatalysts. It hopefully provides the readers with a distinct perspective of the history, present, and future of OER electrocatalysts at mild conditions.

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Section: Nonprecious Metals Based Oer Electrocatalystsmentioning

confidence: 99%

Recent Advances in the Development of Water Oxidation Electrocatalysts at Mild pH

Zhao

Chen

et al. 2019

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138

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“…The polymer matrix will promote the stability of the MO x particles by precluding their corrosion during photocatalysis. 82,83 Our group recently reported such nanostructured material electrogenerated at the surface for a hybrid photocathode for water reduction into H 2 based on a polypyrrole film of Ru tris-bipyridine containing MoS x NPs. 41 This photosensitive material, which strongly absorbs the visible light due to its thick layer of the Ru dye, exhibits a significant photocatalytic activity owing to the high PS/Cat ratio of 2 and the small (60 nm) and non-agglomerated MoS x particles, which confer a large catalytically active surface area.…”

Section: Discussionmentioning

confidence: 99%

Hybrid photoanodes for water oxidation combining a molecular photosensitizer with a metal oxide oxygen-evolving catalyst

Collomb

Morales

Astudillo

et al. 2020

Sustainable Energy Fuels

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“…At pH 14, C‐NiOx/poly electrode exhibits high TOF and mass activity of 0.19 s −1 and 28 A mg −1 at η (overpotential) 0.61 V. Besides, C‐NiO x /poly films appeared more efficient than the C‐NiO x on a bare electrode and reflect the effective role of the pyrrole medium in engendering small‐sized NiO x particles with excellent activity. Stability and the electrocatalytic response of material were further enhanced by depositing material on the surface of ITO instead of the carbon electrode [119] …”

Section: Materials For Oermentioning

confidence: 99%

Recent Advances in Electrocatalysis of Oxygen Evolution Reaction using Noble‐Metal, Transition‐Metal, and Carbon‐Based Materials

2020

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A considerable concern in exploring clean, efficient, and renewable energy resources to effectively replace fossil fuels and to combat the environmental problems and energy scarcities for a sustainable future has been observed. In this context, hydrogen is a clean, renewable, energetically efficient fuel with infinite potential for the future, which can generate a large amount of energy through the electrocatalytic splitting of earth‐abundant water resources. Noble metals, owing to their extraordinary efficiency and stability, are state‐of‐the‐art catalysts for the oxygen evolution reaction (OER) process. However, their scarcity and high cost hamper their commercialization. To replace these expensive noble‐metal‐based materials, researchers are extensively working on the development of cost effective, stable, conductive, and efficient non‐noble metal based materials such as transition metal oxides, borides, nitrides, sulfides, phosphides, selenides, perovskites oxides, and layered double hydroxides, where the incorporation of heteroatoms improves the electrocatalytic activity by modifying the electronic structure and enhances the conductivity and stability. In the case of transition‐metal based metal organic frameworks (MOFs) and MOF‐derived materials, the unique structure of MOFs with a high surface area and porosity, as well as rich redox chemistry of transition metals, leads to excellent response towards the OER process. Moreover, direct utilization of carbonaceous materials or making their composites with transition metals not only enhances the conductivity due to their conductive nature but also promotes stability by strongly binding with the electrocatalyst. Owing to the presence of functional groups on the surface or through different interactions, they provide multiple paths for facile electron and ion transport due to the sheet/network like structure, which help in the fine dispersion of electrocatalyst due to high surface area, prevent agglomeration, and in turn results in improved electrocatalytic activity. Besides these advances, a) there is still a need for a thorough understanding of reaction mechanism via in situ spectroscopic techniques to further optimize the composition and design of electrocatalyst to get desired results, b) the stability of the materials should be further enhanced to practically utilize synthesized material under harsh conditions without degradation, and c) the utilization of these optimized OER catalysts in a solar cell to consume solar energy (renewable energy source), remains a key requirement of the modern era.

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Nickel oxide–polypyrrole nanocomposite electrode materials for electrocatalytic water oxidation

Abstract: Electrochemically prepared nickel oxide nanoparticles entrapped into a polymer matrix as efficient material for O2 evolution.

Cited by 21 publications

References 123 publications

Recent Advances in the Development of Water Oxidation Electrocatalysts at Mild pH

Recent Advances in the Development of Water Oxidation Electrocatalysts at Mild pH

Hybrid photoanodes for water oxidation combining a molecular photosensitizer with a metal oxide oxygen-evolving catalyst

Recent Advances in Electrocatalysis of Oxygen Evolution Reaction using Noble‐Metal, Transition‐Metal, and Carbon‐Based Materials

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