Three-dimensionally ordered macro-/mesoporous Ni as a highly efficient electrocatalyst for the hydrogen evolution reaction

Sun, Tingting; Zhang, Chengwei; Chen, Jianfeng; Yan, Yushan; Zakhidov, Anvar A.; Baughman, Ray H.; Xu, Lianbin

doi:10.1039/c5ta01383f

Cited by 48 publications

(20 citation statements)

References 78 publications

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“…VC-NS shows a small charge transfer resistance (R ct ) of $19.0 Ω cm 2 when an overpotential of 100 mV is applied. It is smaller than those of VC-P ( $ 98.3 Ω cm 2 ) and other electrocatalysts reported previously including three-dimensional ordered macro-/mesoporous Ni (33 Ω cm 2 ) [53], indicating highly conductive and fast proton discharge kinetics of the as-prepared hierarchical VC-NS electrocatalyst.…”

Section: Resultscontrasting

confidence: 55%

Vanadium carbide nanoparticles encapsulated in graphitic carbon network nanosheets: A high-efficiency electrocatalyst for hydrogen evolution reaction

et al. 2016

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Section: Resultscontrasting

confidence: 55%

Vanadium carbide nanoparticles encapsulated in graphitic carbon network nanosheets: A high-efficiency electrocatalyst for hydrogen evolution reaction

et al. 2016

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“…The resultant nanoporous nickel exhibits ultrahigh HER catalytic activity (Fig.3g) with a small Tafel slope of 58.5 mV dec -1 (Fig. 3h), which is comparable to those obtained for nanostructured nickel based HER catalysts in alkaline media, such as Ni-P nanoparticles loaded on Cu foam (55 mV dec -1 ), 32 3D ordered macro-/ mesoporous Ni (52 mV dec -1 ), 33 and nanoscale NiO/Ni-CNT loaded on Ni foam (51 mV dec -1 ). 34 …”

Section: Curve Fitting Of the Cu 2p And Ni 2p Xps Signals (Inserts Insupporting

confidence: 66%

Facile fabrication of nickel nanostructures on a copper-based template via a galvanic replacement reaction in a deep eutectic solvent

Yang

Zhang

Abbott

2016

Electrochemistry Communications

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We describe an unusual galvanic replacement process for facile synthesis of nickel nanostructures by using Cu as a sacrificial template in a deep eutectic solvent (DES) Ethaline. This replacement process occurred through a Galvanic exchange of [NiCl4] 2− ions in Ethaline at 353 K with an immersed Cu substrate, which acted as both reactive template and reductant. The mechanism for this replacement reaction and the morphology and topography evolution process of nickel nanostructures were investigated. This facile preparation method performed in Ethaline provides a novel way to fabricate nickel nanostructures on the copper-based template.

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“…In addition, various mesoporous carbons, metals, [72] oxides, [73,74] sulfides, [75,76] carbides, [77] nitrides, [78] selenides, [79] phosphides [80] or their composites [73,81] and metal/covalentorganic frameworks (MOFs/COFs) [82] have been synthesized and evaluated as competitive alternatives to replace Pt. Miao and co-workers reported mesoporous FeS 2 applied as an electrocatalyst for HER, achieving the remarkable HER performance with a small Tafel slope of 78 mV dec −1 and superior long-term stability.…”

Section: Her/hormentioning

confidence: 99%

Mesoporous Materials for Electrochemical Energy Storage and Conversion

Zhang

et al. 2020

Advanced Energy Materials

240

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electric grids, as well as biocompatible technologies, has attracted tremendous attention and is still a big challenge in the energy field. [1-4] The electrochemical energy storage and conversion devices, such as rechargeable batteries, supercapacitors, fuel cells, and electrolyzers, have been extensively explored. It is well known that electrode materials, e.g., anodes, cathodes, and catalysts, are the heart components of these devices, which play a decisive role in determining performance. Mesoporous materials, which have pore sizes ranging from 2 to 50 nm defined by the International Union of Pure and Applied Chemistry, possess exceptional features, including high specific surface areas, large pore volumes, tunable pore sizes, and controllable geometries (Figure 1a-c). These features enable mesoporous materials as ideal candidates for energy conversion and storage because of the increased active reaction sites and enhanced transport efficiency of reactants. [3,5-7] Therefore, many precise manipulations and structural engineering strategies have been applied to construct advanced mesoporous electrodes with excellent electrochemical performance. Besides, the achieved electrodes with well-controlled mesoporous architectures could be used as platforms to study the fundamental research about the mass transport kinetics, charge transfer, and storage mechanism, as well as the interface electrochemical reactions behavior under the mesoporous nanoconfined space (Figure 1d-g). These fundamental studies are of great importance for further guiding the design of high-performance mesoporous electrodes for electrochemical energy storage and conversion. [6,8,9] In this Essay, we introduce the methods for synthesizing different types of mesoporous materials. Also, the key developments of applications of mesoporous materials in electrochemical energy conversion and storage devices are highlighted. The synthesis-structure-property of mesoporous materials and their applications in rechargeable batteries, supercapacitors, fuel cells, and electrolyzers have been detailed, providing creative insight and enlightening comments on the construction of high-performance mesoporous electrodes. Following these, we propose the research challenges and perspectives on mesoporous materials for the future development of energy conversion and storage devices. Developing high-performance electrode materials is an urgent requirement for next-generation energy conversion and storage systems. Due to the exceptional features, mesoporous materials have shown great potential to achieve high-performance electrodes with high energy/power density, long lifetime, increased interfacial reaction activity, and enhanced kinetics. In this Essay, applications of mesoporous materials are reviewed in electrochemical energy conversion and storage devices. The synthesis, structure, and properties of mesoporous materials and their performance in rechargeable batteries, supercapacitors, fuel cells, and electrolyzers are discussed, providing practical details and enligh...

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Three-dimensionally ordered macro-/mesoporous Ni as a highly efficient electrocatalyst for the hydrogen evolution reaction

Abstract: A novel three-dimensionally ordered macro-/mesoporous Ni electrocatalyst is fabricated and shows excellent properties for the hydrogen evolution reaction in alkaline medium.

Cited by 48 publications

References 78 publications

Vanadium carbide nanoparticles encapsulated in graphitic carbon network nanosheets: A high-efficiency electrocatalyst for hydrogen evolution reaction

Vanadium carbide nanoparticles encapsulated in graphitic carbon network nanosheets: A high-efficiency electrocatalyst for hydrogen evolution reaction

Facile fabrication of nickel nanostructures on a copper-based template via a galvanic replacement reaction in a deep eutectic solvent

Mesoporous Materials for Electrochemical Energy Storage and Conversion

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