Electroless plated Ni–B  films as highly active electrocatalysts for hydrogen production from water over a wide pH range

Zhang, Peili; Wang, Mei; Yang, Yong; Yao, Tianyi; Han, Hongxian; Sun, Licheng

doi:10.1016/j.nanoen.2015.11.020

Cited by 157 publications

(74 citation statements)

References 55 publications

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“…By donating electrons, B may play a sacrificial role to prevent the oxidation of the metal sites and improve their stability. A number of reports on amorphous Co and Ni based borides agree well with this reverse electron transfer phenomenon being responsible for higher HER rate …”

Section: Origin Of Electrochemical Activity In Metal Boridessupporting

confidence: 55%

“…d) Low and e) high magnification SEM images of Ni–B 0.54 film deposited by electroless method (inset in (d) shows side‐view SEM image of Ni–B 0.54 film). Reproduced with permission . Copyright 2016, Elsevier.…”

Section: Strategies Adopted To Enhance the Performance Of Metal Boridesmentioning

confidence: 99%

“…Later, the groups of Hu and Patel reported development of Mo boride and Co boride, respectively, for electrocatalytic water splitting. Following these reports, transition‐metal borides/borates 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).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

Gupta

Patel

Miotello

et al. 2019

Adv Funct Materials

335

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: Origin Of Electrochemical Activity In Metal Boridessupporting

confidence: 55%

Section: Strategies Adopted To Enhance the Performance Of Metal Boridesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Gupta

Patel

Miotello

et al. 2019

Adv Funct Materials

335

243

View full text Add to dashboard Cite

show abstract

“…X-ray photoelectron spectroscopy (XPS) was performed to identify the surface chemical states of a-Ni-B i @NB and pc-Ni-B i @NB.A ss hown in Figure 2a,b oth two samples show two distinct peaks of the Ni 2p 3/2 core level. Thep eak at the low binding energy of 852.2 eV can be assigned to metallic Ni 0 , [19] originating from the inner Ni x B nanoparticles in view of the sampling depth of XPS (about 10 nm). Another peak at higher binding energy is close to the Ni 2+ signal.…”

Section: Angewandte Chemiementioning

confidence: 99%

Crystallinity‐Modulated Electrocatalytic Activity of a Nickel(II) Borate Thin Layer on Ni₃B for Efficient Water Oxidation

et al. 2017

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The exploration of new efficient OER electrocatalysts based on nonprecious metals and the understanding of the relationship between activity and structure of electrocatalysts are important to advance electrochemical water oxidation. Herein, we developed an efficient OER electrocatalyst with nickel boride (Ni B) nanoparticles as cores and nickel(II) borate (Ni-B ) as shells (Ni-B @NB) via a very simple and facile aqueous reaction. This electrocatalyst exhibited a small overpotential of 302 mV at 10 mA cm and Tafel slope of 52 mV dec . More interestingly, it was found that the OER activity of Ni-B @NB was closely dependent on the crystallinity of the Ni-B shells. The partially crystalline Ni-B catalyst exhibited much higher activity than the amorphous or crystalline analogues; this higher activity originated from the enhanced intrinsic activity of the catalytic sites. These findings open up opportunities to explore nickel(II) borates as a new class of efficient nonprecious metal OER electrocatalysts, and to improve the electrocatalyst performance by modulating their crystallinity.

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“…[3][4][5] It is therefore necessary to search for earth-abundant, cost-effective, and efficient alternatives for HER. In recent years, a wide range of non-Pt catalysts including oxides, [6] sulfides, [7][8][9][10][11] borides, [12][13][14] phosphides, [15][16][17][18][19][20][21][22][23] nitrides, [24][25][26] carbides, [12,[27][28][29][30][31][32][33] nanocarbons, [34][35][36][37] and their composites [38][39][40][41] have been extensively developed to catalyze HER. Among these options, molybdenumbased materials are the attractive ones due to their low cost and good performance.…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Mo₂C Nanocrystals Embedded in Nanoporous Carbon Network for Efficient Hydrogen Evolution

Chen

Zhang

et al. 2017

Chin. J. Chem.

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Exploring facile and easily-scalable methods for synthesizing earth-abundant, cost-effective and efficient hydrogen evolution reaction (HER) electrocatalysts is essential for the mass production of hydrogen as a clean and sustainable energy carrier. We report here a simple strategy to produce Mo 2 C nanocrystals embedded in carbon network (Mo 2 C@C) by the direct pyrolysis of ammonium molybdate and polyvinylpyrrolidone (PVP). It is found that PVP can be effectively used as a single source to form carbides and carbon network. The long polymer chain and coordinating capability with transition metal of PVP make it possible to form connected porous carbon network and well-dispersed Mo 2 C nanocrystals in several nanometers. The carbonization of PVP not only effectively in-situ prevents the aggregation of Mo 2 C nanocrystals during their formation, but also provides conductive porous matrix. As a result, the Mo 2 C@C composite exhibits the superior electrocatalytic performance for HER, which can be ascribed to the large number of active sites from plenty of small Mo 2 C nanocrystals and the efficient mass and electron transport network from carbon matrix. This strategy may inspire the exploration of cost-effective functional polymer as single source for both carbon precursor and nanostructure-directed reagent to mass-produce well-defined metal carbides nanostructures embedded in porous carbon network for energy applications.

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Electroless plated Ni–B films as highly active electrocatalysts for hydrogen production from water over a wide pH range

Cited by 157 publications

References 55 publications

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

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

Crystallinity‐Modulated Electrocatalytic Activity of a Nickel(II) Borate Thin Layer on Ni₃B for Efficient Water Oxidation

Facile Synthesis of Mo₂C Nanocrystals Embedded in Nanoporous Carbon Network for Efficient Hydrogen Evolution

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Electroless plated Ni–B films as highly active electrocatalysts for hydrogen production from water over a wide pH range

Cited by 157 publications

References 55 publications

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

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

Crystallinity‐Modulated Electrocatalytic Activity of a Nickel(II) Borate Thin Layer on Ni3B for Efficient Water Oxidation

Facile Synthesis of Mo2C Nanocrystals Embedded in Nanoporous Carbon Network for Efficient Hydrogen Evolution

Contact Info

Product

Resources

About

Crystallinity‐Modulated Electrocatalytic Activity of a Nickel(II) Borate Thin Layer on Ni₃B for Efficient Water Oxidation

Facile Synthesis of Mo₂C Nanocrystals Embedded in Nanoporous Carbon Network for Efficient Hydrogen Evolution