Glucose-derived carbon sphere supported CoP as efficient and stable electrocatalysts for hydrogen evolution reaction

Luo, Bangde; Huang, Ting; Zhu, Ye; Wang, Deli

doi:10.1016/j.jechem.2017.08.013

Cited by 36 publications

(15 citation statements)

References 43 publications

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“…The aforementioned results show that V doping can not only increase the number active sites, but also optimize the electronic structure of CoP and improve the intrinsic catalytic activity, thus exhibiting the enhanced catalytic performance toward HER in acidic media. It is worth to note that the HER performance of the present V-CoP/CC electrode outperforms those of most reported CoP-based catalysts in acidic solution, as shown in Figure 3F (Luo et al, 2017;Li H. et al, 2018;Li, Y et al, 2018;Gao et al, 2019;Huang et al, 2019).…”

Section: Resultsmentioning

confidence: 65%

V-Doped CoP Nanosheet Arrays as Highly Efficient Electrocatalysts for Hydrogen Evolution Reaction in Both Acidic and Alkaline Solutions

et al. 2020

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It is of significant necessity to explore inexpensive and high-active electrocatalysts toward hydrogen evolution reaction (HER) in both acidic and basic media. In this work, V-doped CoP nanosheet arrays supported on the carbon cloth (V-CoP/CC) are fabricated though a facile water-bath/phosphorization method. The nanoarray structure on the three-dimensional self-supporting electrode can provide a large electrochemical active surface area with more exposed active sites to accelerate the reaction kinetics. Furthermore, V doping is able to tune the electronic properties and thus enhance the intrinsic catalytic activity of CoP. Consequently, the V-CoP/CC electrode exhibits excellent electrocatalytic activities toward HER in both 0.5 M H 2 SO 4 and 1 M KOH solutions with small overpotentials of 88 and 98 mV at a current density of 10 mA cm −2 , respectively. The present work will offer a feasible way to tailor the catalytic activity by hetero-atoms doping toward HER.

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Section: Resultsmentioning

confidence: 65%

V-Doped CoP Nanosheet Arrays as Highly Efficient Electrocatalysts for Hydrogen Evolution Reaction in Both Acidic and Alkaline Solutions

et al. 2020

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“…Recently, a large quantity of research manifested that the transition metal (Mo, Co, Ni, Fe, etc.) sulfides and phosphides are highly active HER catalysts [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] . The early research focused on sulfides, such as MoS 2 .…”

Section: Introductionmentioning

confidence: 99%

Size-dependent catalytic activity of cobalt phosphides for hydrogen evolution reaction

Jiang

Liu

et al. 2020

Journal of Energy Chemistry

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a b s t r a c tTransition metal phosphides are a class of promising electrocatalysts for hydrogen evolution reaction (HER) to replace noble metals. In this work, we for the first time synthesize carbon supported CoP nanoparticles with the average particle sizes from 3.3 to 9.2 nm, via a solvothermal process followed by low-temperature topological phosphorization, and the size-dependent HER activity of the CoP is investigated by virtue of TEM, XRD, XPS and the electrochemical techniques. It is discovered that the 9.2nm-CoP particles possess high intrinsic HER catalytic activity as compared to the 3.3nm-CoP, although the smaller one displays a high mass activity due to the large surface area. Detailed studies manifest that the small CoP particles suffer from serious oxidation once exposing to air. In contrast, most cobalt remains in the quasi-metallic state in the relatively large CoP particles, which is beneficial for the desorption of H ads , the rate determining step of the HER process over CoP surface. In addition, the low charge transfer resistance across the liquid/solid interfaces also contributes to the excellent HER activity of the relatively large CoP particles.

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“…Electrochemical water splitting is a promising method for H 2 generation due to its high efficiency [3] . Wide efforts have been devoted to developing active catalysts for the aqueous hydrogen evolution reaction (HER) process [4][5][6][7][8] . Pt-based catalysts remain the most efficient HER electro-catalysts so far.…”

Section: Introductionmentioning

confidence: 99%

Enhanced hydrogen evolution reaction over molybdenum carbide nanoparticles confined inside single-walled carbon nanotubes

Cui

Dong

Pan

et al. 2019

Journal of Energy Chemistry

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Glucose-derived carbon sphere supported CoP as efficient and stable electrocatalysts for hydrogen evolution reaction

Cited by 36 publications

References 43 publications

V-Doped CoP Nanosheet Arrays as Highly Efficient Electrocatalysts for Hydrogen Evolution Reaction in Both Acidic and Alkaline Solutions

V-Doped CoP Nanosheet Arrays as Highly Efficient Electrocatalysts for Hydrogen Evolution Reaction in Both Acidic and Alkaline Solutions

Size-dependent catalytic activity of cobalt phosphides for hydrogen evolution reaction

Enhanced hydrogen evolution reaction over molybdenum carbide nanoparticles confined inside single-walled carbon nanotubes

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