Surface engineering of nickel selenide for an enhanced intrinsic overall water splitting ability

Liu, Peng Fei; Zhang, Le; Zheng, Lirong; Yang, Hua

doi:10.1039/c8qm00292d

Cited by 46 publications

(21 citation statements)

References 51 publications

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“…The system also shows the high efficiency of catalyzing the HER in basic media. This dual‐function electrode enables a high performance alkaline water electrolyzer with 10 mA cm −2 at a battery voltage of 1.63 V. In another study, Yang and co‐workers develop a surface‐polyaniline (PANI) functionalized NiSe‐PANI electrode with great performance enhancement for OER ( Figure 5 A,B) 44. The decorated PANI layer subtly modulates the surface electronic structures of NiSe, and enhances the generation of Ni III/IV active species when oxidized for the OER (Figure 5C).…”

Section: Ni/fe‐based Micro/nanostructures For Electrochemical Water Omentioning

confidence: 99%

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Recent Development of Ni/Fe‐Based Micro/Nanostructures toward Photo/Electrochemical Water Oxidation

Gao

Yan

2019

Advanced Energy Materials

381

208

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The oxygen evolution reaction (OER), as an important process involved in water splitting and rechargeable metal–air batteries, has drawn increasing attention in the context of clean energy generation and efficient energy storage. This review concerns the progress and new discoveries in the field of Ni/Fe‐based micro/nanostructures toward electrochemical and photo‐electrochemical (PEC) water oxidation during last few years. First, toward the design and construction of new electrocatalysis, different types of current Ni/Fe‐based compounds for OER are summarized. The mechanism studies of the active phases and positions of Ni/Fe‐based micro/nanostructures are further introduced to understand the properties of catalytic active sites, which could facilitate further improving the performance of Ni/Fe‐based OER electrocatalysts. Second, splitting water using sunlight with low overpotential is another important target in making solar‐to‐hydrogen micro/nanodevices, and thus attention is then focused on the development of several important Ni/Fe‐based PEC catalysts. Third, the recent theoretical calculations on the OER mechanism during water splitting and insights into electronic structures are analyzed; finally, the future trends and perspectives are also discussed briefly.

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Section: Ni/fe‐based Micro/nanostructures For Electrochemical Water Omentioning

confidence: 99%

Section: Ni/fe‐based Micro/nanostructures For Electrochemical Water Omentioning

confidence: 99%

Recent Development of Ni/Fe‐Based Micro/Nanostructures toward Photo/Electrochemical Water Oxidation

Gao

Yan

2019

Advanced Energy Materials

381

208

View full text Add to dashboard Cite

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“…8,9 Consequently, alternatives to Pt electrodes are needed. Pt-based alloys 10 or earth-abundant non-Pt catalysts such as Fe-, 11,12 Ni-, [13][14][15][16] Co-, 17,18 Cu- 19 and Mo-based 20 materials have been widely studied. Unfortunately, their catalytic performance remains far from satisfactory compared with that of Pt.…”

Section: Introductionmentioning

confidence: 99%

Carbon quantum dots enhanced the activity for the hydrogen evolution reaction in ruthenium-based electrocatalysts

Wei

Wang

et al. 2020

Mater. Chem. Front.

107

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“…The nitrogen lone pair in PANI affords effective coordinate sites to anchor transition metals (TMI) and formed TM−N coordinate bonds which promotes electron transfer and enhanced the conductivity. These TMI contained composite materials were found to be more stable even in harsh alkali condition [16,17] . Though PANI doped metal composite materials show potential advantages, there have been only few reports on them as OER electrocatalysts [18] .…”

Section: Introductionmentioning

confidence: 99%

Ultra‐Durability and Enhanced Activity of Amorphous Cobalt Anchored Polyaniline Synergistic towards Electrocatalytic Water Oxidation

et al. 2022

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Cobalt anchored polyaniline electrocatalysts (Co@PANI) have been synthesized (Co@PANI‐200, Co@PANI‐400, Co@PANI‐600, Co@PANI‐800) and characterised. The electrical conductivity and stability of Co@PANI increased due to the synergistic effect of PANI and cobalt content. PANI prevents aggregation and show strong binding with cobalt ions. The Co@PANI‐600/GC shows low overpotential of 341 mV @ 10 mA cm−2 current density and the Tafel slope of Co@PANI‐600 (39 mV dec−1) was smaller than IrO2 (98 mV dec−1) for OER. The calculated turnover frequency (TOF) of Co@PANI‐600/GC (0.01609 s−1) was ≈8 times higher than IrO2 (0.0014 s−1) at 1.60 V. Furthermore, the Co@PANI‐600/NF electrocatalyst shows an incredibly low overpotential of 251 mV @10 mA cm−2. This new born Co@PANI‐600/NF exhibits durability over 250 h with only 5.1 % potential loss in alkaline medium. Co@PANI‐600 catalyst exhibits excellent OER performances as well as having enough kinetics to solve the sluggish rate of water oxidation. At 1.54 V, the solar driven water electrolysis demonstration supports the efficiency of new born electrocatalyst in solar to hydrogen conversion. These research findings confirm that Co@PANI‐600 can be used for large‐scale hydrogen generation at the lowest possible cost.

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Surface engineering of nickel selenide for an enhanced intrinsic overall water splitting ability

Abstract: Polyaniline could subtly modify the surface electronic structures of NiSe electrocatalysts, with an optimized selenium-enriched configuration for the HER and enhanced in situ generation of NiIII/IV for the OER.

Cited by 46 publications

References 51 publications

Recent Development of Ni/Fe‐Based Micro/Nanostructures toward Photo/Electrochemical Water Oxidation

Recent Development of Ni/Fe‐Based Micro/Nanostructures toward Photo/Electrochemical Water Oxidation

Carbon quantum dots enhanced the activity for the hydrogen evolution reaction in ruthenium-based electrocatalysts

Ultra‐Durability and Enhanced Activity of Amorphous Cobalt Anchored Polyaniline Synergistic towards Electrocatalytic Water Oxidation

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