Bimetallic Carbides-Based Nanocomposite as Superior Electrocatalyst for Oxygen Evolution Reaction

Tang, Yawei; Liu, Chunhui; Huang, Wei; Wang, Xiaoli; Dong, Long‐Zhang; Li, Shun-Li; Lan, Ya‐Qian

doi:10.1021/acsami.7b01096

Cited by 148 publications

(89 citation statements)

References 46 publications

(58 reference statements)

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“…Figure compares the OER performance of metal borides and borates with that of precious metal catalysts (RuO 2 , IrO 2 ) as well as best representatives from other family of nonprecious metal catalysts (phosphides, carbides, sulfides, nitrides). As the amount of catalyst governs the OER performance, we restrict to only those catalysts that use a loading < 3 mg cm −2 .…”

Section: Discussionmentioning

confidence: 99%

Metal Boride‐Based Catalysts for Electrochemical Water‐Splitting: A Review

Gupta

Patel

Miotello

et al. 2019

Adv Funct Materials

315

243

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Electrocatalytic water-splitting has gained a firm hold in the area of renewable hydrogen production owing to its integrative compatibility with intermittent energy sources. However, wide-scale implementation of this technology demands discovery of new electrode materials that strike a good balance between efficiency, stability, and cost. In the pool of inexpensive electrodes capable of catalyzing hydrogen and oxygen evolution reactions, metal borides/ borates have made a big splash in the last decade. However, the research in this family of electrocatalysts remains unorganized owing to the diversity of reports. This review summarizes the past and present research progress in metal borides/borates for electrocatalytic water-splitting. The fundamental reasons for electrochemical behavior in different metal borides/borates are highlighted here, also including some comments regarding erroneous practices in the performance evaluation of metal borides/borates. Various strategies used to enhance the electrocatalytic performance of metal borides/borates are discussed in detail. Different methods evolved over the years for the synthesis of metal borides/ borates are also discussed. Finally, an assessment of the commercial viability of metal borides/borates is made and future research directions are suggested. multimetal oxides, [18,19] layered double hydroxides, [20] oxyhydroxides, [21] and perovskites. [13,18] In addition to these, there has been the family of transition-metal borides/borates that have garnered enormous interest in the recent past. Though transition-metal borides (TMBs) have been used for water electrolysis since many decades, they were not really seen as potential candidates to replace noble metal catalysts, until recently. Indeed, in 2009, the group of Daniel Nocera reported in situ formed Co [22] and Ni [23] borates as analogous catalysts to Co phosphate, [24] for near-neutral water-splitting. Later, the groups of Hu [25] and Patel [26] reported development of Mo boride and Co boride, respectively, for electrocatalytic water splitting. Following these reports, transition-metal borides/ borates [27][28][29][30][31][32] were developed using various techniques and were used extensively for water-splitting reactions, in different pH solutions. Here, we would like to inform the readers that usually boron-based catalysts that are developed in situ using electrodeposition are referred to as "borates" (denoted as M-B i , M = metal) while those catalysts prepared by any other technique are referred to as "borides" (denoted as M-B). Over the past 5-6 years, a lot of studies have been carried out on borides/borates with remarkable results, presenting new possibilities in search for non-noble electrocatalysts. The electrochemical performance, stability and other important properties of all the metal borides reported so far are enlisted in Table 1 while that of metal borates are listed in Table 2. However, there are a lot of aspects that are not yet understood completely about borides/borates. For instance, the o...

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Section: Discussionmentioning

confidence: 99%

Metal Boride‐Based Catalysts for Electrochemical Water‐Splitting: A Review

Gupta

Patel

Miotello

et al. 2019

Adv Funct Materials

315

243

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“…X‐ray photoelectron spectroscopy (XPS) spectra revealed the existence of C, Co, O and B in BC/Co 3 O 4 (Figure ), which was in accordance with the results of ICP‐OES and elemental analyses. Three types of carbon species, with deconvoluted peaks located at 284.5, 285.5 and 289.0 eV, were assigned to C−C, C−O and C=O, respectively . The B 1s spectrum displayed a sharp peak at about 192 eV, corresponding to B‐C 2 O/B‐CO 2 species .…”

Section: Methodsmentioning

confidence: 99%

“…Three types of carbon species, with deconvoluted peaks located at 284.5, 285.5 and 289.0 eV,w ere assigned to CÀC, CÀ Oa nd C=O, respectively. [13] The B1 ss pectrum displayed a sharp peak at about 192 eV,c orresponding to B-C 2 O/B-CO 2 species. [8c] This indicated that most of boron might be located on carbon layers between the metal oxide NPs.…”

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confidence: 99%

Synthesis of a Hierarchically Porous C/Co₃O₄ Nanostructure with Boron Doping for Oxygen Evolution Reaction

Zou

2020

Chemistry An Asian Journal

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Fabricating a low‐cost and highly efficient electrocatalyst is of importance for the development of renewable energy devices. In this work, we have synthesized an ultrafine cobalt oxide nanocatalyst (5–10 nm) doped with boron (BC/Co3O4) by using a metal–organic framework as a precursor, which exhibits an excellent catalytic activity for oxygen evolution reaction (OER). Owing to the improvement of accessible active sites by boron doping, the synthesized catalyst can reach a current density of 10 mA cm−2 at 1.54 V with a low overpotential of 310 mV, superior than those of commercial RuO2 and N‐doped C/Co3O4. This work provides a facile way to develop highly efficient catalysts for electrochemical reactions.

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“…Currently, some materials resulting from the carbonization of POM‐containing precursors have been tested as OER electrocatalysts. A cobalt‐molybdenum‐based bimetallic carbide coated by N‐doped porous carbon and anchored on N‐doped rGO film (Co 6 Mo 6 C 2 /NCRGO) was synthesized by directly carbonizing the Co‐doped polyoxometalate/conductive polymer/graphene oxide precursors (Figure ) . The resultant composite showed to be a robust OER electrocatalyst, displaying a low overpotential of η 10 =0.260 V vs. RHE, a small TS of 50 mV dec −1 and long‐term stability.…”

Section: Introductionmentioning

confidence: 99%

POM & MOF‐based Electrocatalysts for Energy‐related Reactions

et al. 2018

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Electrocatalysis plays a central role in clean energy conversion, enabling a number of sustainable processes for future technologies and the development of highly efficient and cost‐effective materials is one of the current major challenges. This results from the current global energy crisis, reflected in the depletion of fossil fuels and growth of the environmental pollution, which has stimulated the development of novel renewable energy storage and conversion technologies. Currently, several electrocatalysts have been proposed and among them are the polyoxometalates (POMs), the metal‐organic frameworks (MOFs) and their based composites.

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Bimetallic Carbides-Based Nanocomposite as Superior Electrocatalyst for Oxygen Evolution Reaction

Cited by 148 publications

References 46 publications

Metal Boride‐Based Catalysts for Electrochemical Water‐Splitting: A Review

Metal Boride‐Based Catalysts for Electrochemical Water‐Splitting: A Review

Synthesis of a Hierarchically Porous C/Co₃O₄ Nanostructure with Boron Doping for Oxygen Evolution Reaction

POM & MOF‐based Electrocatalysts for Energy‐related Reactions

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Bimetallic Carbides-Based Nanocomposite as Superior Electrocatalyst for Oxygen Evolution Reaction

Cited by 148 publications

References 46 publications

Metal Boride‐Based Catalysts for Electrochemical Water‐Splitting: A Review

Metal Boride‐Based Catalysts for Electrochemical Water‐Splitting: A Review

Synthesis of a Hierarchically Porous C/Co3O4 Nanostructure with Boron Doping for Oxygen Evolution Reaction

POM & MOF‐based Electrocatalysts for Energy‐related Reactions

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Synthesis of a Hierarchically Porous C/Co₃O₄ Nanostructure with Boron Doping for Oxygen Evolution Reaction