A High‐Performance Binary Ni–Co Hydroxide‐based Water Oxidation Electrode with Three‐Dimensional Coaxial Nanotube Array Structure

Zhao, Zhenlu; Wu, Haoxi; He, Haili; Xu, Xiaolong; Jin, Yongdong

doi:10.1002/adfm.201400118

Cited by 360 publications

(231 citation statements)

References 58 publications

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“…Ni 2p XPS of the both composites that demonstrates the formation of 3D-Ni (Ni 0 ) metal and a small number of Ni 2+ ascribing to the partially surface oxidation of 3D-Ni metal exposing to the air [38]. The high-resolution spectra for Mn 2p, O 1s and N 1s are shown inFigure 2h-g. InFigure 2h, the Mn 2p spectrum exhibits multiple splitting.…”

mentioning

confidence: 93%

Hierarchical polypyrrole based composites for high performance asymmetric supercapacitors

Chen

Liu

Lin

et al. 2015

Journal of Power Sources

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mentioning

confidence: 93%

Hierarchical polypyrrole based composites for high performance asymmetric supercapacitors

Chen

Liu

Lin

et al. 2015

Journal of Power Sources

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“…In particular, the Ni and Co species can interact with water to form M-O (M = Ni or Co) bonds and consequently expedite oxygen evolution [15]. High OER activity of the Ni-and Co-based compounds has been achieved with, for instance, Ni-Co alloys [16], simple and mixed Ni-Co oxides (sulfides, selenides) [8,[17][18][19][20][21][22][23][24][25], perovskites [3,26], and NiCo hydro (oxy) oxides [15,27]. Moreover, the electrocatalyst based on the Ni-Co spinel structure have been intensely studied recently, such as NiCo 2 O 4 aerogels [28], NiCo 2 O 4 nanoplates [29], core-ring structured NiCo 2 O 4 [30], Ni x Co 3-x O 4 nanowire arrays [31].…”

Section: Introductionmentioning

confidence: 99%

NiCoO2 nanowires grown on carbon fiber paper for highly efficient water oxidation

Yang

Zhou

Guo

et al. 2015

Electrochimica Acta

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“…Jin and co-workers reported the sandwich-like coaxial structure of Ni@[Ni (2+/3+) Co 2 (OH) [6][7] x nanotubes for an OER catalyst electrode. [89] The nanotube array was prepared using a sequential electrodeposition method by applying a ZnO nanorod array as a template, as shown in Figure 5a. In addition to the synergistic effect between Ni and Co, the sandwich-like morphology afforded a high surface area and a route for fast electron transport, resulting in an improved performance such as η = 460 mV at 10 mA cm −2 .…”

Section: Nanostructured and Hybrid-structured Ldhmentioning

confidence: 99%

“…[86][87][88][89][90][91][92][93][94][95][96][97][98][99][100][101] Various synthesis methods have been used to fabricate nanostructured catalysts such as electrodeposition, hydrothermal methods, and template synthesis. Jin and co-workers reported the sandwich-like coaxial structure of Ni@[Ni (2+/3+) Co 2 (OH) [6][7] x nanotubes for an OER catalyst electrode.…”

Section: Nanostructured and Hybrid-structured Ldhmentioning

confidence: 99%

Recent Progress on Multimetal Oxide Catalysts for the Oxygen Evolution Reaction

Kim

et al. 2018

Advanced Energy Materials

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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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A High‐Performance Binary Ni–Co Hydroxide‐based Water Oxidation Electrode with Three‐Dimensional Coaxial Nanotube Array Structure

Abstract: Scheme 1. Schematic illustration of the fabrication of the 3D NNCNTAs water oxidation electrode by means of electro-deposition.

Cited by 360 publications

References 58 publications

Hierarchical polypyrrole based composites for high performance asymmetric supercapacitors

Hierarchical polypyrrole based composites for high performance asymmetric supercapacitors

NiCoO2 nanowires grown on carbon fiber paper for highly efficient water oxidation

Recent Progress on Multimetal Oxide Catalysts for the Oxygen Evolution Reaction

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