NiFe‐Based (Oxy)hydroxide Catalysts for Oxygen Evolution Reaction in Non‐Acidic Electrolytes

Dionigi, Fabio; Strasser, Peter

doi:10.1002/aenm.201600621

Cited by 831 publications

(783 citation statements)

References 168 publications

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“…[12] It was also demonstrated that layered hydroxides are stable and efficient OER catalysts under alkaline conditions. [16,17] Moreover, it was shown that the perovskite family with its chemical tunability of various substituting metals can exhibit excellent catalytic performance. [18] Notable in the recent research of 3d-transition-metal-based oxide catalysts is that substituting different transition metals in the material can provide a facile route to explore the full chemistry of the pristine structure.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress on Multimetal Oxide Catalysts for the Oxygen Evolution Reaction

Kim

et al. 2018

Advanced Energy Materials

697

498

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fossil fuels are being widely researched for the development of a sustainable energy system. Among the various candidates for green energy resources, hydrogen energy has been at the center of attention. [1,2] Hydrogen is both inexhaustible and environmentally friendly, because it can be produced from earth-abundant reactants such as water and methane and because no CO 2 or other toxic products are emitted during its conversion into other energy form such as electricity, respectively. Moreover, hydrogen can exhibit significantly larger energy density compared with other energy sources such as gasoline and coal. The most widely used method of hydrogen production today is steam reforming because of its low cost in the process. [3] Nevertheless, the release of carbon monoxide or carbon dioxide as byproducts in the steam reforming process diminishes the environmental merits of hydrogen energy. Thus, as a possible cleaner alternative, an electrolysis method that involves producing hydrogen by electrochemically splitting water has been extensively investigated. Using one of the most abundant resources, water, the production of hydrogen from it yields only oxygen as a byproduct.In the water electrolysis, the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) occur simultaneously, as described by the following equationsIn order for the reaction to proceed, a voltage of 1.23 V is theoretically required between an anode and a cathode. However, an overpotential (represented by the symbol η) should be additionally applied to account for the potential loss resulting from kinetic limitations occurring during the electrochemical reaction. The use of electrocatalysts can lower the overpotential by kinetically facilitating the water-splitting reaction either in HER or OER. Due to the nature of four-electron involving OER, it is generally believed that the OER is much more sluggish than the HER; thus, the development of efficient OER Hydrogen is a promising alternative fuel for efficient energy production and storage, with water splitting considered one of the most clean, environmentally friendly, and sustainable approaches to generate hydrogen. However, to meet industrial demands with electrolysis-generated hydrogen, the development of a low-cost and efficient catalyst for the oxygen evolution reaction (OER) is critical, while conventional catalysts are mostly based on precious metals. Many studies have thus focused on exploring new efficient nonprecious-metal catalytic systems and improving the understandings on the OER mechanism, resulting in the design of catalysts with superior activity compared with that of conventional catalysts. In particular, the use of multimetal rather than single-metal catalysts is demonstrated to yield remarkable performance improvement, as the metal composition in these catalysts can be tailored to modify the intrinsic properties affecting the OER. Herein, recent progress and accomplishments of multimetal catalytic systems, including several important groups of catalysts: layered h...

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Section: Introductionmentioning

confidence: 99%

Recent Progress on Multimetal Oxide Catalysts for the Oxygen Evolution Reaction

Kim

et al. 2018

Advanced Energy Materials

697

498

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“…Recent studies have employed the fitted values of U from Wang and Ceder, 70 which were adapted to reproduce thermodynamic properties (ΔH of formation of the oxide), but still corrections were needed to obtain the proper thermodynamics between the different phases. 121 Similar problems arise in manganese oxides, for which site-dependent values were proposed, 54 and the most recent use of nickel oxohydroxides 122−124 with varied valences of the Ni centers and mixed Fe−Ni materials for energy-related catalysis 125,126 are foreseen. The implication of the U dependence will also affect other families of materials with applications in Li-ion batteries, water splitting, or photovoltaics such as Prussian Blue analogues, 127,128 perovskites, 129,130 or Li-ion battery cathodes.…”

Section: 106−109mentioning

confidence: 99%

Performance of DFT+UApproaches in the Study of Catalytic Materials

2016

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“…Incorporation of a third metal ion has been proposed as a strategy to improve the activity of NiFe-LDH by affecting the conductivity and the structure of the binary catalyst [23,24,59]. Thus, we select Co 2+ as a third metal ion to synthesize ternary NiFeCo-LDH anchoring on porous BiVO4 photoanode (BiVO4/NiFeCo-LDH).…”

Section: Effect Of Ternary Nifeco-ldh On Porous Bivo4 Photoanodementioning

confidence: 99%

“…Impressively, the adjustment of metal ions in LDHs may provide more active sites and enhance the surface reaction kinetics of LDH [24]. Incorporation of a third metal ion has been proposed as a strategy to improve the activity of NiFe-LDH by affecting the conductivity and the structure of the binary catalyst [23,24,59].…”

Section: Effect Of Ternary Nifeco-ldh On Porous Bivo4 Photoanodementioning

confidence: 99%

“…However, the instability and/or competing light absorbance in the visible light region of non-noble-metal OER electrocatalysts limit their applications in photoelectrocatalysis [7]. Currently, it has been found that layered double hydroxide (LDH) materials show surprisingly high OER performance [21][22][23][24][25]. They may serve as promising OEC candidates for PEC water splitting.…”

Section: Introductionmentioning

confidence: 99%

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Promoting charge carrier utilization by integrating layered double hydroxide nanosheet arrays with porous BiVO4 photoanode for efficient photoelectrochemical water splitting

Huang

Xin

et al. 2017

Sci. China Mater.

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The increasing exploration of renewable and clean power sources have driven the development of highly active materials for photoelectrochemical (PEC) water splitting. However, it is still a great challenge to enhance the charge utilization. Herein, we report a facile method to fabricate composite photoanode with porous BiVO4 film as the photon absorber and layered double hydroxide (LDH) nanosheet arrays as the oxygen-evolution cocatalysts (OECs). The as-prepared BiVO4/NiFe-LDH photoanode shows an excellent performance for PEC water splitting benefitting from the synergistic effect of the superior charge separation efficiency facilitated by porous BiVO4 film and the excellent water oxidation activity resulting from LDH nanosheet arrays. A photocurrent density is 4.02 mA cm −2 at 1.23 V vs. the reversible hydrogen electrode (RHE). Furthermore, the O2 evolution rate at the surface of BiVO4/NiFe-LDH photoanode is as high as 29.6 µmol h −1 cm −2 and the high activity for water oxidation is maintained for over 30 h. Impressively, the performance of the as-fabricated composite photoanode for PEC water splitting can be further enhanced through incorporating a certain amount of Co 2+ cation into NiFe-LDH as OEC. The photocurrent density is achieved up to 4.45 mA cm −2 at 1.23 V vs. RHE. This value is the highest yet reported for un-doped BiVO4-based photoanodes so far.

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NiFe‐Based (Oxy)hydroxide Catalysts for Oxygen Evolution Reaction in Non‐Acidic Electrolytes

Cited by 831 publications

References 168 publications

Recent Progress on Multimetal Oxide Catalysts for the Oxygen Evolution Reaction

Recent Progress on Multimetal Oxide Catalysts for the Oxygen Evolution Reaction

Performance of DFT+UApproaches in the Study of Catalytic Materials

Promoting charge carrier utilization by integrating layered double hydroxide nanosheet arrays with porous BiVO4 photoanode for efficient photoelectrochemical water splitting

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