Crystal CoxB (x = 1–3) Synthesized by a Ball-Milling Method as High-Performance Electrocatalysts for the Oxygen Evolution Reaction

Ma, Xinzhi; Wen, Jing; Shen, Zhonghua; Yuan, Haoran; Li, Kaiyue; Yan, Feng; Zhang, Xitian; Chen, Yujin

doi:10.1021/acssuschemeng.7b02281

Cited by 83 publications

(74 citation statements)

References 61 publications

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“…Hitherto, transition metal catalysts, especially cobaltand nickel-based electrocatalysts, have drawn tremendous attention because of their attractive features, such as availability, low cost and superior activity [13]. Over the past years, transition metal oxides/hydroxides [14][15][16], sulphides [17,18], phosphides [19,20], and borides [21,22] have been extensively investigated as OER electrocatalysts. Although the sulphides, phosphides and borides have shown better catalytic activity than the oxides in some cases, they suffer from lower controllability, more harsh condition, and probable contamination during the syntheses.…”

Section: Introductionmentioning

confidence: 99%

Bimetallic oxide coupled with B-doped graphene as highly efficient electrocatalyst for oxygen evolution reaction

Jiang

Dong

et al. 2020

Sci. China Mater.

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Developing electrocatalysts with high performance and low cost for the oxygen evolution reaction (OER) is of great importance for fabricating renewable energy storage and conversion devices. Here, a series of boron-doped graphene (BG)-supported bimetallic oxides of Co and Ni were obtained and served as OER electrocatalysts. Surprisingly, the annealed Co-Ni-O x /BG with a Co/Ni ratio of 1:1 exhibits high performance toward oxygen evolution in alkaline electrolyte. The overpotential is only 310 mV at the current density of 10 mA cm −2 , superior to many mono-metallic oxides reported before, and even comparable to the commercial RuO 2 . The regulation of charge distribution in bimetallic oxides and the strong synergistic coupling effects together contribute to the superior electrocatalytic performance of the Co-Ni-O x /BG toward OER. This study also offers several effective ways to design high-performance OER electrocatalysts for water splitting.

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Section: Introductionmentioning

confidence: 99%

Bimetallic oxide coupled with B-doped graphene as highly efficient electrocatalyst for oxygen evolution reaction

Jiang

Dong

et al. 2020

Sci. China Mater.

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“…Therefore developing highly active alternative nonprecious electrocatalyst is essential to satisfy the hydrogen generation industry. Consequently, enormous efforts have been devoted for the development of nanostructured non‐precious electrocatalysts with various compositions, such as transition metal chalcogenide, carbide, nitride, phosphide and boride …”

Section: Introductionmentioning

confidence: 99%

“…Consequently, enormous efforts have been devoted for the development of nanostructured non-precious electrocatalysts with various compositions, such as transition metal chalcogenide, carbide, nitride, phosphide and boride. [7][8][9][10][11][12][13][14][15][16][17][18][19] Transition metal phosphides (TMPs), especially cobalt phosphide (CoP) is an attractive, alternative electrocatalyst, which intensively investigated for HER than other TMPs. Also, the different stoichiometric ratio of Co/P are likely to cause different electronic structures which determine their intrinsic catalytic activity to particular extent.…”

Section: Introductionmentioning

confidence: 99%

CoP Embedded in Hierarchical N‐Doped Carbon Nanotube Frameworks as Efficient Catalysts for the Hydrogen Evolution Reaction

2018

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Highly efficient, nonprecious and stable electrocatalysts for the hydrogen evolution reaction (HER) are absolutely crucial for renewable energy conversion, yet the design of such catalysts remains to be a long and arduous task. Herein, cobalt phosphide (CoP) nanoparticles (NPs) embedded in hierarchical N‐doped carbon nanotube frameworks (CoP‐HNCs) have been synthesized by controlled phosphidation of cobalt NPs embedded in hierarchical N‐doped carbon nanotube frameworks (Co‐HNCs). The Co‐HNCs were prepared by direct carbonization of Co‐based zeolitic imidazolate networks (ZIF‐67). Benefitting from multiple structural and compositional features, such as a multitude of catalytically active sites, a high degree of graphitization, and a thin carbon layer enclosing the NPs, CoP‐HNCs serve as a superior electrocatalyst towards the hydrogen evolution reaction. The synthesized CoP‐HNCs delivered a low overpotential at a current density of 10 mA cm−2 (η10) of 79 mV and 96 mV with small Tafel slope value of 45.6 mV dec−1 and 49.5 mV dec−1 in acidic and alkaline conditions, respectively. In addition, the catalyst showed long‐time durability under both acidic and alkaline electrolyte conditions, further demonstrating their potential to replace Pt‐based precious catalysts.

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“…[2] Furthermore, considering some extreme reaction environments (e.g.,s trong acidic and alkaline environments) for the aforementioned reactions, electrocatalytic stability ought to be adequately considered upon engineering electrocatalysts. [5] To replace high-costing and unstable commercial electrocatalysts, it is significant to develop electrocatalysts that are cheap and have high stability,h igh selectivity,a nd acceptable activity. [4] Moreover,t he introduction of metal components to extreme chemical environments leads to poor stability,w hich extremely limits practical applications.…”

Section: Introductionmentioning

confidence: 99%

“…[4] Moreover,t he introduction of metal components to extreme chemical environments leads to poor stability,w hich extremely limits practical applications. [5] To replace high-costing and unstable commercial electrocatalysts, it is significant to develop electrocatalysts that are cheap and have high stability,h igh selectivity,a nd acceptable activity.…”

Section: Introductionmentioning

confidence: 99%

Stable and Efficient Nitrogen‐Containing Carbon‐Based Electrocatalysts for Reactions in Energy‐Conversion Systems

et al. 2018

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High activity and stability are crucial for the practical use of electrocatalysts in fuel cells, metal-air batteries, and water electrolysis, including the oxygen reduction reaction, hydrogen evolution reaction, oxygen evolution reaction, and oxidation reactions of formic acid and alcohols. Electrocatalysts based on nitrogen-containing carbon (N-C) materials show promise in catalyzing these reactions; however, there is no systematic review of strategies for the engineering of active and stable N-C-based electrocatalysts. Herein, a comprehensive comparison of recently reported N-C-based electrocatalysts regarding both electrocatalytic activity and long-term stability is presented. In the first part of this review, the relationships between the electrocatalytic reactions and selection of the element to modify the N-C-based materials are discussed. Afterwards, synthesis methods for N-C-based electrocatalysts are summarized, and strategies for the synthesis of highly stable N-C-based electrocatalysts are presented. Multiple tables containing data on crucial parameters for both electrocatalytic activity and stability are displayed in this review. Finally, constructing M-N moieties is proposed as the most promising engineering strategy for stable N-C-based electrocatalysts.

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Crystal Co_xB (x = 1–3) Synthesized by a Ball-Milling Method as High-Performance Electrocatalysts for the Oxygen Evolution Reaction

Cited by 83 publications

References 61 publications

Bimetallic oxide coupled with B-doped graphene as highly efficient electrocatalyst for oxygen evolution reaction

Bimetallic oxide coupled with B-doped graphene as highly efficient electrocatalyst for oxygen evolution reaction

CoP Embedded in Hierarchical N‐Doped Carbon Nanotube Frameworks as Efficient Catalysts for the Hydrogen Evolution Reaction

Stable and Efficient Nitrogen‐Containing Carbon‐Based Electrocatalysts for Reactions in Energy‐Conversion Systems

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