Effects of redox-active interlayer anions on the oxygen evolution reactivity of NiFe-layered double hydroxide nanosheets

Zhou, Daojin; Cai, Zhao; Bi, Yongmin; Tian, Weiliang; Luo, Ma; Zhang, Qian; Xie, Qixian; Wang, Jindi; Li, Yaping; Kuang, Yun; Duan, Xue; Bajdich, Michal; Siahrostami, Samira; Sun, Xiaoming

doi:10.1007/s12274-017-1750-9

Cited by 164 publications

(113 citation statements)

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“…The Fe or Ni vacancies effectively tune the surface electronic structure, and increase the adsorbing capacity of the OER intermediate. The role of intercalated ions in the OER activity remains unclear, though NiFe‐LDHs nanosheets have shown optimal OER performance, Sun's group shows that the activity of NiFe‐LDHs can be adjusted by intercalating anions with different redox potentials 99. Analysis of the DFT calculations (Figure 11B) and X‐ray photoelectron spectroscopy (Figure 11C) show that the intercalated anions change the electronic structure of metal atoms, which are exposed at the surface.…”

Section: Theoretical Research Of Ni/fe‐based Catalystsmentioning

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

409

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: Theoretical Research Of Ni/fe‐based Catalystsmentioning

confidence: 99%

Section: Theoretical Research Of Ni/fe‐based Catalystsmentioning

confidence: 99%

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

Gao

Yan

2019

Advanced Energy Materials

409

208

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“…[3] Recently, it has been reported that the surface of Ni-based electrodes is poisoned by the strong adsorption of methanol on the active sites, in particular materials containing NiOOH species, thus, one of the main problem is the catalytic deactivation. [7] Composition of brucite-like layer is characterized by M 2 + /(M 2 + + M 3 + ) ratio commonly called x, the conventional expression for LDHs materials is stated as Equation (1): From this approach, interesting performance was showed towards high catalytic [ [3] Recently an enhancement on electroactivity of Ni III /Ni II redox couple due to substitution of aluminium by iron in LDH, favoring the presence of Ni 3 + active site was reported by Tonelli's group.…”

Section: Introductionmentioning

confidence: 99%

Some Attributes of Mn³⁺ Sites in Nickel‐Based Layered Double Hydroxides during Methanol Electro‐oxidation in Alkaline Media

et al. 2017

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Ni-based layered double hydroxides (LDHs), or hydrotalcite-like materials (HTs), were synthetized through co-precipitation at constant pH (NiAl and NiMg) and urea hydrolysis (NiMn) methods, and they were tested in the electrochemical methanol oxidation (MOR). The physicochemical properties were explored by using techniques such as X-ray diffraction, FT-IR spectroscopy, as well as electron paramagnetic resonance. In addition, correlation between active site arrangements and electrocatalytic activity was evidenced by density functional calculations.Specific site m(Ni 2 Mn-OH) showed the lowest proton energy removal at approximately 3.6 eV and the NiMn LDH sample containing a higher proportion of this site exhibited the best performance for the MOR process, with an enhancement factor of 5.16, which is attributed to limited deactivation of Ni during the reaction. CO 2 production was detected by differential electrochemical mass spectrometry to be on the order of ten times greater than O 2 .

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“…Latter, Zhou et al. systemically compared 16 anions intercalated NiFe‐LDHs and their results revealed that NiFe‐(H 2 PO 2− )‐LDHs and NiFe‐(F − )‐LDHs exhibited the best and worst water oxidation activity, respectively …”

Section: Introductionmentioning

confidence: 99%

Self‐supported Reevesite Ni‐Fe Layered Double Hydroxide Nanosheet Arrays for Efficient Water Oxidation

et al. 2020

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Rational design of high efficient and low cost oxygen evolution reaction (OER) electrodes is critical for electrochemical water splitting. Herein, we report Reevesite Ni−Fe layered double hydroxide (NiFe‐(CO32−)‐LDH) nanosheet arrays as novel OER catalysts in alkaline electrolyte. These self‐supported nanosheet arrays with a composition of Ni6Fe2(CO3)(OH)16 ⋅ 4H2O on Ni foam (NF) were synthesized by a one‐pot hydrothermal method, in which NF served as both the conductive substrate and Ni source. The morphology and OER activity can be tuned by iron concentration. In 1 M KOH, the optimized NiFe‐(CO32−)‐LDH catalyst only required overpotentials of 228 and 264 mV to deliver current densities of 10 and 100 mA cm−2, respectively, with a small Tafel slope of 37 mV dec−1. Remarkably, this catalyst also showed outstanding durability by long‐term operation for 20 h with 96 % retention. Our work provides attractive cost‐effective 3D catalysts for efficient and robust water oxidation at alkaline media.

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Effects of redox-active interlayer anions on the oxygen evolution reactivity of NiFe-layered double hydroxide nanosheets

Cited by 164 publications

References 62 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

Some Attributes of Mn³⁺ Sites in Nickel‐Based Layered Double Hydroxides during Methanol Electro‐oxidation in Alkaline Media

Self‐supported Reevesite Ni‐Fe Layered Double Hydroxide Nanosheet Arrays for Efficient Water Oxidation

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Effects of redox-active interlayer anions on the oxygen evolution reactivity of NiFe-layered double hydroxide nanosheets

Cited by 164 publications

References 62 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

Some Attributes of Mn3+ Sites in Nickel‐Based Layered Double Hydroxides during Methanol Electro‐oxidation in Alkaline Media

Self‐supported Reevesite Ni‐Fe Layered Double Hydroxide Nanosheet Arrays for Efficient Water Oxidation

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Some Attributes of Mn³⁺ Sites in Nickel‐Based Layered Double Hydroxides during Methanol Electro‐oxidation in Alkaline Media