Potentiostatic electrodeposition of self-supported Ni S electrocatalyst supported on Ni foam for efficient hydrogen evolution

Wu, Yingquan; Lian, Jiqiong; Wang, Yuxin; Sun, Jingjing; He, Zhen; Gu, Zhenjian

doi:10.1016/j.matdes.2020.109316

Cited by 49 publications

(21 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Over the past few decades, many research groups have focused on the development of transition metal compounds such as phosphides, [104,130,131] sulfides, [136][137][138][139][140] and selenides. [141][142][143][144][145] Among them, transition metal phosphides have received much attention because of their high cat-alytic activity for the HER, resulting from the modified electronic structure.…”

Section: 22mentioning

confidence: 99%

“…Wu et al prepared the Ni-S alloy by potentiostatic electrodeposition on Ni foam, which showed a high HER activity with an overpotential of 58 mV at −10 mA cm −2 and a Tafel slope of 81.6 mV dec −1 . [137] Similarly, electrodeposition was used to fabricate an amorphous Ni/NiS film by varying the reductant reagent to modulate the Ni content (Figure 4G-I). [136] By controlling the composition, electronic structure, charge transfer resistance, and ECSA of the Ni/NiS film were optimized, which contributed to the high HER performance.…”

Section: 22mentioning

confidence: 99%

See 1 more Smart Citation

Electrodeposition: An efficient method to fabricate self‐supported electrodes for electrochemical energy conversion systems

Kim

Han

et al. 2022

Exploration

View full text Add to dashboard Cite

The development of electrocatalysts for energy conversion systems is essential for alleviating environmental problems and producing useful energy sources as alternatives to fossil fuels. Improving the catalytic performance and stability of electrocatalysts is a major challenge in the development of energy conversion systems. Moreover, understanding their electrode structure is important for enhancing the energy efficiency. Recently, binder-free self-supported electrodes have been investigated because the seamless contact between the electrocatalyst and substrate minimizes the contact resistance as well as facilitates fast charge transfer at the catalyst/substrate interface and high catalyst utilization. Electrodeposition is an effective and facile method for fabricating self-supported electrodes in aqueous solutions under mild conditions. Facile fabrication without a polymer binder and controlability of the compositional and morphological properties of the electrocatalyst make electrodeposition methods suitable for enhancing the performance of energy conversion systems. Herein, we summarize recent research on self-supported electrodes fabricated by electrodeposition for energy conversion reactions, particularly focusing on cathodic reactions of electrolyzer system such as hydrogen evolution, electrochemical CO 2 reduction, and electrochemical N 2 reduction reactions. The deposition conditions, morphological and compositional properties, and catalytic performance of the electrocatalyst are reviewed. Finally, the prospective directions of electrocatalyst development for energy conversion systems are discussed.

show abstract

Section: 22mentioning

confidence: 99%

Section: 22mentioning

confidence: 99%

Electrodeposition: An efficient method to fabricate self‐supported electrodes for electrochemical energy conversion systems

Kim

Han

et al. 2022

Exploration

View full text Add to dashboard Cite

show abstract

“…Therefore, the additional anodizing treatment after laser marking can further improve the surface superhydrophobicity. The corrosion behavior poses great significance in industrial applications [35,36]. Figure 6 shows the Tafel polarization curves recorded on the samples at different processing stages, and the calculated parameters are listed accordingly in Table 1.…”

Section: Wettability and Corrosion Behaviormentioning

confidence: 99%

Nanostructured Superhydrophobic Titanium-Based Materials: A Novel Preparation Pathway to Attain Superhydrophobicity on TC4 Alloy

et al. 2022

Self Cite

View full text Add to dashboard Cite

This study develops the nanostructured superhydrophobic titanium-based materials using a combined preparation method of laser marking step and the subsequent anodizing step. The structural properties were determined using an X-ray diffractometer (XRD) and scanning electron microscope (SEM), while the performance was explored by wear and corrosion tests. The laser marking caused a rough surface with paralleled grooves and protrusions, revealing surface superhydrophobicity after organic modification. The anodizing process further created a titanium oxide (TiO2) nanotube film. Both phase constituent characterization and surface elemental analysis prove the uniform nanofilm. The inert nanosized oxide film offers improved stability and superhydrophobicity. Compared to those samples only with the laser marking process, the TiO2 nanotube film enhances the corrosion resistance and mechanical stability of surface superhydrophobicity. The proposed preparation pathway serves as a novel surface engineering technique to attain a nanostructured superhydrophobic surface with other desirable performance on titanium alloys, contributing to their scale-up applications in diverse fields.

show abstract

“…In this experiment, the dosage of CuSO 4 •5H 2 O in electro-deposition solutions was 1.0 g L −1 , 2.0 g L −1 , and 3.0 g L −1 respectively. Copper was supported on S30210 stainless steel substrates by a PED process [32,34]. The temperature of the electro-deposition solution was 60 • C constantly, the initial pH was 3.0, and the deposition voltage was 32.5 V.…”

Section: Preparation Of Modified Electrodementioning

confidence: 99%

“…Electro-deposition is a surface modification technique, including galvanostatic electrodeposition (GEP), potenti-ostatic electrodeposition (PED) and electrophoretic deposition (EPD) [31,32]. Miroslav [33] found that compared with GEP and EPD, the catalyst prepared by PED had better catalytic performance.…”

Section: Introductionmentioning

confidence: 99%

Degradation of 2-Naphthol in Aqueous Solution by Electro-Fenton System with Cu-Supported Stainless Steel Electrode

Cheng

Zhang

Zhou

et al. 2022

Water

View full text Add to dashboard Cite

For the treatment of 2-naphthol wastewater, the homogeneous electro-Fenton process was considered as an effective method but some disadvantages greatly restrict its application. The three-dimensional electro-Fenton (3D-EF) system using a nano zero-valent iron-supported biochar (NZVIs-BC) particle electrode and a Cu-supported stainless steel electrode (Cu-SSE) was proposed to avoid the disadvantages of the homogeneous electro-Fenton. In this work, the 3D-EF system was developed, which consisted of a Cu-SSE (cathode), a graphite rod (anode) and a NZVIs-BC particle electrode. The effect of the ratio of ferrous sulfate heptahydrate (FS) to rice straw (RS), CuSO4•5H2O amount, initial pH of 2-naphthol wastewater and current intensity (the output current of the power supply) on the removal rate of 2-naphthol were investigated. It is noteworthy that more than 98.36% of the 2-naphthol in aqueous solution was removed by the 3D-EF system, and only about 60.09% of 2-naphthol was removed by the homogeneous electro-Fenton system. Furthermore, naphthalene, benzoic acid, β-naphthoquinone, 1, 2-naphthalenedione, phenol and aromatic hydrocarbon were the main degradation products of 2-naphthol by the 3D-EF system; the toxicity of 2-naphthol wastewater was also greatly reduced.

show abstract

Potentiostatic electrodeposition of self-supported Ni S electrocatalyst supported on Ni foam for efficient hydrogen evolution

Cited by 49 publications

References 41 publications

Electrodeposition: An efficient method to fabricate self‐supported electrodes for electrochemical energy conversion systems

Electrodeposition: An efficient method to fabricate self‐supported electrodes for electrochemical energy conversion systems

Nanostructured Superhydrophobic Titanium-Based Materials: A Novel Preparation Pathway to Attain Superhydrophobicity on TC4 Alloy

Degradation of 2-Naphthol in Aqueous Solution by Electro-Fenton System with Cu-Supported Stainless Steel Electrode

Contact Info

Product

Resources

About