Study of Ni–S/CeO2 composite material for hydrogen evolution reaction in alkaline solution

Zhao, Meiqin; Dong, Haifeng; Chen, Zhouhao; Ma, Zhipeng; Wang, Lixin; Wang, Guiling; Yang, Wang; Shao, Guangjie

doi:10.1016/j.ijhydene.2016.09.080

Cited by 26 publications

(4 citation statements)

References 41 publications

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“…16 Corte et al prepared a Ni/PANI composite using a 300 W Xe lamp for the catalytic hydrogen evolution from a 0.5 M H 2 SO 4 solution. 17 The H 2 generation rate is improved by the rise in the composite percentage of PANI. The ability of PANI/TiO 2 to produce hydrogen from water using a 200 W tungsten lamp has been studied by Belabed et al…”

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confidence: 99%

ITO/Poly-3-Methylaniline/Au Electrode for Electrochemical Water Splitting and Dye Removal

Abdelazeez

El-Fatah

Shaban

et al. 2021

ECS J. Solid State Sci. Technol.

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Application of aniline derivative semiconductor nanopolymer and its Au composite for H2 generation and dye removal were investigated. Electrochemical polymerization of poly-3-methylaniline (P3MA) on ITO glass was carried out for acid medium. Au nanoparticles with crystal sizes of 15 and 30 nm were sputter coated on the surface. Chemical structure of the polymer and its composite was characterized using FTIR, XRD, 1HNMR, SEM, and UV-Vis. All function groups were confirmed using FTIR analyses. XRD confirmed the formation of nanopolymer with a crystal size of ~15 nm. SEM confirmed the formation of smooth lamellar surface feature with a <20 nm nanoporous structure. Porosity and particle sizes increases with Au coating, confirmed using the modeling Image J program. Optical analysis also demonstrated that the strength of P3MA absorption peaks increases with rising Au coating time, in which the bandgap values changed from 1.64 to 1.63 eV for 15 and 30 nm Au, respectively. The photoelectrode ITO/PMT/30 nm Au was applied for H2 generation and dye removal. The current density (Jph) values were -0.3 and -1.6 mA.cm-2 in the absence and presence of the Congo red dye, respectively. The incident photon-to-current conversion efficiency (IPCE%) for the electrode was 2.3 at 390 nm. The activation energy (Ea) was 31.49 KJ mol-1. The enthalpy (∆H*) and entropy (∆S*) values were 114.49 and 160.46 JK-1 mol-1, respectively. A simple mechanism for the H2 generation and dye removal is mentioned

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confidence: 99%

ITO/Poly-3-Methylaniline/Au Electrode for Electrochemical Water Splitting and Dye Removal

Abdelazeez

El-Fatah

Shaban

et al. 2021

ECS J. Solid State Sci. Technol.

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“…Li et al studied the effects of different magnitudes of CeO 2 on Ni-S and Ni-Zn coatings in the catalytic activities of HERs [23,24]. Our team studied the catalytic activities of Ni-CeO 2 and Ni-S/CeO 2 composites in hydrogen evolution [27,28]. In this paper, we prepared different morphologies of CeO 2 and studied the impacts of different CeO 2 morphologies on Ni-S alloys in HERs.…”

Section: Introductionmentioning

confidence: 99%

The Effects of CeO2 Nanorods and CeO2 Nanoflakes on Ni–S Alloys in Hydrogen Evolution Reactions in Alkaline Solutions

Zhao

Dong

et al. 2017

Catalysts

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Composite coatings synthesized by different morphologies of CeO 2 in supergravity devices are highly active in hydrogen evolution reactions (HERs). By adding CeO 2 nanoflakes (CeO 2 Nf) or CeO 2 nanorods (CeO 2 Nr), the change in the microstructures of composites becomes quite distinct. Moreover, most Ni-S alloys are attached on the surface of CeO 2 and roughen it compare with pure CeO 2 . In order to make the expression more concise, this paper uses M instead of Ni-S. At a current density of 10 mA/cm 2 , overpotentials of Ni-S/CeO 2 Nr (M-CeO 2 Nr) and Ni-S/CeO 2 Nf (M-CeO 2 Nf) are 200 mV and 180 mV respectively, which is lower than that of Ni-S (M-0) coating (240 mV). The exchange current density (j 0 ) values of M-CeO 2 Nf and M-CeO 2 Nr are 7.48 mA/cm 2 and 7.40 mA/cm 2 , respectively, which are higher than that of M-0 (6.39 mA/cm 2 ). Meanwhile, double-layer capacitances (C dl ) values of M-CeO 2 Nf (6.4 mF/cm 2 ) and M-CeO 2 Nr (6 mF/cm 2 ) are 21.3 times and 20 times of M-0 (0.3 mF/cm 2 ), respectively.

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“…Transition-metal-based compounds [10][11][12] as a representative of non-noble-metal-based catalysts with low intrinsic electrical resistivity and rapid charge transfer have been reported with promising performance for HER, including transition-metal oxides/hydroxides (TMOs/TMOHs), transition-metal dichalcogenides/sulfides (TMDs/TMSs), transition-metal nitrides (TMNs), transition-metal phosphides (TMPs), and transitionmetal carbides (TMCs). However, the performance of catalysts simply constructed with transition metals is far inferior to that A.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress of Non‐Noble Metallic Heterostructures for the Electrocatalytic Hydrogen Evolution

Song,

Duanmu

et al. 2023

Small Science

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Developing energy production, storage, and conversion technologies based on sustainable or renewable energy is essential to address the energy and environmental crisis. Electrochemical water splitting is one of the most promising approaches to realize the production of green hydrogen. The design of catalytic materials with low cost, high activity, and long‐term stability and the exploration of specific reaction mechanisms are the key focus for the involved electrochemical hydrogen evolution reaction (HER). Recently, substantial efforts have been devoted to the rational design and synthesis of non‐noble metallic heterostructures with fascinating synergistic effects among different components. These heterostructured materials demonstrate comprehensive properties exceeding the estimations by the rule of mixtures and display high activity and long‐term stability in industrial conditions for HER. Herein, the reaction mechanism and key parameters for improving catalytic performance in the HER process are discussed in detail. The latest advances in heterostructures based on synthetic methods and electrocatalytic characteristics from experimental and computational perspectives are summarized according to the role of various components. Herein, insights are provided in this review into an in‐depth understanding of the heterostructures as HER electrocatalysts, and the opportunities and challenges to scale up future‐oriented developments are highlighted.

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Study of Ni–S/CeO2 composite material for hydrogen evolution reaction in alkaline solution

Cited by 26 publications

References 41 publications

ITO/Poly-3-Methylaniline/Au Electrode for Electrochemical Water Splitting and Dye Removal

ITO/Poly-3-Methylaniline/Au Electrode for Electrochemical Water Splitting and Dye Removal

The Effects of CeO2 Nanorods and CeO2 Nanoflakes on Ni–S Alloys in Hydrogen Evolution Reactions in Alkaline Solutions

Recent Progress of Non‐Noble Metallic Heterostructures for the Electrocatalytic Hydrogen Evolution

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