An Advanced Ni–Fe Layered Double Hydroxide Electrocatalyst for Water Oxidation

Gong, Mali; Li, Yanguang; Wang, Hailiang; Liang, Yongye; Wu, Justin Z.; Zhou, Jigang; Wang, Jian; Regier, Tom; Wei, Fei; Dai, Hongjie

doi:10.1021/ja4027715

Cited by 2,572 publications

(2,090 citation statements)

References 35 publications

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“…Previous reports have shown that the LDHs can exhibit high electrocatalytic activity in alkaline conditions with pH 13 and 14 [21,22,36]. However, the LSV curves in Fig.…”

Section: Resultsmentioning

confidence: 78%

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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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“…Previous reports have shown that the LDHs can exhibit high electrocatalytic activity in alkaline conditions with pH 13 and 14 [21,22,36]. However, the LSV curves in Fig.…”

Section: Resultsmentioning

confidence: 78%

“…Binary NiFe-LDH nanosheet arrays are selected as the model OECs to fabricate BiVO4/NiFe-LDH photoanode because of their facile preparation conditions and highly efficient OER activity [22,36]. As shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

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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“…29 Dai established that crystalline Fe-doped α-Ni(OH)2 on carbon nanotubes is more active than the equivalent β-phase material. 30 And Yan recently synthesized phase-controlled crystalline α-and β-Ni(OH)2 materials and found that the α-polymorph was more active for water oxidation. 31 Our results support the recent findings that α-Ni(OH)2 is highly active for water oxidation.…”

Section: Raman Spectramentioning

confidence: 99%

Highly Active Mixed-Metal Nanosheet Water Oxidation Catalysts Made by Pulsed-Laser Ablation in Liquids

et al. 2014

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Surfactant-free mixed-metal hydroxide water oxidation nanocatalysts were synthesized by pulsed-laser ablation in liquids. In a series of [Ni-Fe]layered double hydroxides with intercalated nitrate and water, [Ni 1−x Fe x (OH) 2 ](NO 3 ) y (OH) x−y •nH 2 O, higher activity was observed as the amount of Fe decreased to 22%. Addition of Ti 4+ and La 3+ ions further enhanced electrocatalysis, with a lowest overpotential of 260 mV at 10 mA cm −2 . Electrocatalytic water oxidation activity increased with the relative proportion of a 405.1 eV N 1s (XPS binding energy) species in the nanosheets.

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“…Currently, transition‐metal (Fe, Co, Ni, Mn, and Mo)‐based catalysts including metal oxides,23, 24, 25, 26, 27, 28, 29, 30 hydroxides,31, 32, 33, 34, 35 phosphides,36, 37, 38, 39, 40, 41, 42 sulfides,43, 44, 45, 46, 47, 48 selenides,49, 50, 51, 52, 53, 54 and nitrides55, 56, 57, 58, 59, 60, 61, 62 have been highlighted as the most promising candidates of OER and HER electrocatalysts. Especially, layered double hydroxides (LDHs)63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85 and their derivatives (metal hydroxides, oxyhydroxides, oxides, bimetal nitrides, phosphides, sulfides, and selenides)86, 87, 88, 89, 90, 91, 92…”

Section: Introductionmentioning

confidence: 99%

Recent Progress on Layered Double Hydroxides and Their Derivatives for Electrocatalytic Water Splitting

et al. 2018

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Layered double hydroxide (LDH)‐based materials have attracted widespread attention in various applications due to their unique layered structure with high specific surface area and unique electron distribution, resulting in a good electrocatalytic performance. Moreover, the existence of multiple metal cations invests a flexible tunability in the host layers; the unique intercalation characteristics lead to flexible ion exchange and exfoliation. Thus, their electrocatalytic performance can be tuned by regulating the morphology, composition, intercalation ion, and exfoliation. However, the poor conductivity limits their electrocatalytic performance, which therefore has motivated researchers to combine them with conductive materials to improve their electrocatalytic performance. Another factor hampering their electrocatalytic activity is their large lateral size and the bulk thickness of LDHs. Introducing defects and tuning electronic structure in LDH‐based materials are considered to be effective strategies to increase the number of active sites and enhance their intrinsic activity. Given the unique advantages of LDH‐based materials, their derivatives have been also used as advanced electrocatalysts for water splitting. Here, recent progress on LDHs and their derivatives as advanced electrocatalysts for water splitting is summarized, current strategies for their designing are proposed, and significant challenges and perspectives of LDHs are discussed.

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An Advanced Ni–Fe Layered Double Hydroxide Electrocatalyst for Water Oxidation

Cited by 2,572 publications

References 35 publications

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

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

Highly Active Mixed-Metal Nanosheet Water Oxidation Catalysts Made by Pulsed-Laser Ablation in Liquids

Recent Progress on Layered Double Hydroxides and Their Derivatives for Electrocatalytic Water Splitting

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