One-step co-electrodeposition of hierarchical radial NixP nanospheres on Ni foam as highly active flexible electrodes for hydrogen evolution reaction and supercapacitor

Cao, Xueying; Jia, Dedong; Li, Da; Cui, Liang; Liu, Jingquan

doi:10.1016/j.cej.2018.04.209

Cited by 123 publications

(39 citation statements)

References 76 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All the factors are detrimental to the applications of the materials. The self-supported electrode [40] is binderfree, and has good contact between the active material and current collector [41], which is convenient and conducive to improve the performance of electrode. In this regard, the Ni 2 P nanosheets [42] and NiCoP array have grown on Ni foams (NF) [43].…”

Section: Introductionmentioning

confidence: 99%

Porous NiCoP nanowalls as promising electrode with high-area and mass capacitance for supercapacitors

Zhang

et al. 2019

Sci. China Mater.

View full text Add to dashboard Cite

The design of the electrode with high-area and mass capacitance is important for the practical application of supercapacitors. Here, we fabricated the porous NiCoP nanowalls supported by Ni foam (NiCo-P/NF) for supercapacitors with win-win high-area and mass capacitance. The NiCoOH nanowall precursor was prepared by controlling the deposition rate of Ni 2+ and Co 2+ on NF through a sodium acetate-assisted (floride-free) process. After the phosphorization, the NiCo-P nanowalls formed with high loading about 8.6 mg cm −2 on NF. The electrode combined several advantages favorable for energy storage: the plentiful pores beneficial for ion transport, the nanowalls for easy accommodation of electrolyte, good conductivity of NiCo-P for easy transport of electrons. As expected, the NiCo-P/NF exhibited a high specific mass capacitance (1,861 F g −1 at 1 A g −1 , 1,070 F g −1 at 10 A g −1 ), and high area capacitance (17.31 F cm −2 at 5 mA cm −2 and 10 F cm −2 at 100 mA cm −2 ). The asymmetric supercapacitor (ASC) composed of NiCo-P/ NF positive electrode coupled with commercial active carbon negative electrode exhibited a high energy density of 44.9 W h kg −1 at a power density of 750 W kg −1 . The ASC can easily drive fans, electronic watch and LED lamps, implying their potential for the practical application.

show abstract

Section: Introductionmentioning

confidence: 99%

Porous NiCoP nanowalls as promising electrode with high-area and mass capacitance for supercapacitors

Zhang

et al. 2019

Sci. China Mater.

View full text Add to dashboard Cite

show abstract

“…Therefore, it is clear that the Ni-P can effectively promote the interfacial hydrogen production reaction. In fact, the above results for the effective electrocatalytic H 2 -evolution reaction of Ni-P have been experimentally proven, where the Ni-P can be used as efficient active sites to reduce the overpotential of interfacial H 2 -evolution reaction [41]. Considering a similar mechanism between electroncatalytic and photocatalytic hydrogen evolutions, the Ni-P could be hopefully regarded as a superior H 2 -evolution cocatalyst for promoting the hydrogen-evolution performance of various photocatalysts [42].…”

Section: Introductionmentioning

confidence: 85%

Triethanolamine-mediated photodeposition formation of amorphous Ni-P alloy for improved H2-evolution activity of g-C3N4

Gao

et al. 2020

Sci. China Mater.

View full text Add to dashboard Cite

Developing efficient, stable, and low-cost novel electron-cocatalysts is crucial for photocatalytic hydrogen evolution reaction. Herein, amorphous NiP alloy particles were successfully modified onto g-C 3 N 4 to construct the Ni-P/ g-C 3 N 4 photocatalyst through a simple and green triethanolamine (TEOA)-mediated photodeposition method. It was found that the TEOA could serve as an excellent complexing agent to coordinate with Ni 2+ to form [Ni(TEOA)] 2+ complex, which can promote the rapid and effective deposition of amorphous NiP alloy on the g-C 3 N 4 surface. Photocatalytic tests suggest that the hydrogen-evolution performance of g-C 3 N 4 can be greatly promoted through integrating amorphous NiP alloy. Especially, the Ni-P/g-C 3 N 4 (5 wt%) exhibits the superior H 2-generation activity (118.2 μmol h −1 g −1), which is almost 35.8 times that of bare g-C 3 N 4. Furthermore, the amorphous NiP alloy cocatalyst can also serve as the general hydrogen-production cocatalyst to greatly enhance the photocatalytic performance of traditional semiconductor materials such as TiO 2 and CdS. Based on the present results, the mechanism of the amorphous NiP alloy as the high-efficiency electron transfer medium was proposed for the boosted H 2generation rate. The present facile route may broaden the horizons for the efficient development of highly active cocatalysts in photocatalytic field.

show abstract

“…So far, some interesting nickel phosphide structures have been successfully prepared by electrochemical deposition. Cao et al demonstrated the preparation of hierarchical radial amorphous nickel phosphide (Ni x P) nanospheres on Ni foam (Ni x P/NF) at a constant potential of −0.8 V (vs. Ag/AgCl) under a nitrogen atmosphere by using a nickel chloride and sodium hypophosphite electrolyte [131]. Figure 13a shows a schematic image of the electrodeposition preparation of the hierarchical radial Ni x P nanospheres on Ni foam at different times.…”

Section: Electrochemical Depositionmentioning

confidence: 99%

Nickel Phosphide Electrocatalysts for Hydrogen Evolution Reaction

Liu

et al. 2020

Catalysts

View full text Add to dashboard Cite

The production of hydrogen through electrochemical water splitting driven by clean energy becomes a sustainable route for utilization of hydrogen energy, while an efficient hydrogen evolution reaction (HER) electrocatalyst is required to achieve a high energy conversion efficiency. Nickel phosphides have been widely explored for electrocatalytic HER due to their unique electronic properties, efficient electrocatalytic performance, and a superior anti-corrosion feature. However, the HER activities of nickel phosphide electrocatalysts are still low for practical applications in electrolyzers, and further studies are necessary. Therefore, at the current stage, a specific comprehensive review is necessary to focus on the progresses of the nickel phosphide electrocatalysts. This review focuses on the developments of preparation approaches of nickel phosphides for HER, including a mechanism of HER, properties of nickel phosphides, and preparation and electrocatalytic HER performances of nickel phosphides. The progresses of the preparation and HER activities of the nickel phosphide electrocatalysts are mainly discussed by classification of the preparation method. The comparative surveys of their HER activities are made in terms of experimental metrics of overpotential at a certain current density and Tafel slope together with the preparation method. The remaining challenges and perspectives of the future development of nickel phosphide electrocatalysts for HER are also proposed.

show abstract

One-step co-electrodeposition of hierarchical radial NixP nanospheres on Ni foam as highly active flexible electrodes for hydrogen evolution reaction and supercapacitor

Cited by 123 publications

References 76 publications

Porous NiCoP nanowalls as promising electrode with high-area and mass capacitance for supercapacitors

Porous NiCoP nanowalls as promising electrode with high-area and mass capacitance for supercapacitors

Triethanolamine-mediated photodeposition formation of amorphous Ni-P alloy for improved H2-evolution activity of g-C3N4

Nickel Phosphide Electrocatalysts for Hydrogen Evolution Reaction

Contact Info

Product

Resources

About