Nickel hydroxide as a non-noble metal co-catalyst decorated on Cd<sub>0.5</sub>Zn<sub>0.5</sub>S solid solution for enhanced hydrogen evolution

Chen, Dan; Xu, Yao; Zhang, Yingying; Sheng, Wenyu; Qian, Guangren

doi:10.1039/d1ra03938e

Cited by 9 publications

(5 citation statements)

References 65 publications

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“…So, it can be inferred that the decrease in photocatalytic performance may be due to the presence of a certain photocorrosion of the catalyst or that it may originate from the cocatalyst sinking in the carrier. The same phenomenon has been found in similar composite materials. − …”

Section: Resultssupporting

confidence: 80%

Ni(OH)₂ Nanosheet as an Efficient Cocatalyst for Improved Photocatalytic Hydrogen Evolution over Cd_0.9Zn_0.1S Nanorods under Visible Light

Li,

Chen,

et al. 2024

Langmuir

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Loading cocatalysts to promote spatial charge separation has been confirmed as an effective method for improving photocatalytic hydrogen production. This article reports that the synthesis of Ni(OH) 2 /Cd 0.9 Zn 0.1 S nanorod photocatalyst is suitable for photocatalytic H 2 generation under visible light. It can be proven that the binary photocatalyst exhibits a onedimensional nanorod morphological structure. Ni(OH) 2 nanosheets occupy the top area of Cd 0.9 Zn 0.1 S nanorods. The photocatalytic H 2 production rate can reach 132.93 mmol•h −1 • g −1 , which corresponds to an apparent quantum efficiency of up to 76.5% at a wavelength of 460 nm. In addition, the Ni(OH) 2 nanosheet can aggregate the light-incited electrons of Cd 0.9 Zn 0.1 S, inhibiting the confluence of electrons and holes. The detailed analysis of its mechanism through characterization methods such as photoluminescence and electrochemical measurement shows that the significant improvement in photocatalytic performance derives from the effective spatial separation of photo-induced charge carriers. Therefore, this synthesis strategy of one-dimensional materials may bring new prospects for more efficient, stable, and sustainable photocatalysis for water splitting.

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Section: Resultssupporting

confidence: 80%

Ni(OH)₂ Nanosheet as an Efficient Cocatalyst for Improved Photocatalytic Hydrogen Evolution over Cd_0.9Zn_0.1S Nanorods under Visible Light

Li,

Chen,

et al. 2024

Langmuir

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“…The information about the precipitated Ni(OH) 2 films is found in the supplementary material section. In this study, p-type Ni(OH) 2 films were obtained by the intercalation of eosin Y. Ni(OH) 2 is also known as a potential candidate for a cocatalyst [25]. For photocatalysts, it is important to minimize the recombination of electron-hole pairs [26].…”

Section: Resultsmentioning

confidence: 99%

Conduction-type conversion in Ni(OH)2 by intercalation of eosin Y

Abe,

Kubota,

Jian

2024

MRS Advances

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Nickel hydroxide (Ni(OH)2) is one of the wide bandgap semiconductors. By controlling its conduction type, Ni(OH)2 could be used as a semiconductor material in various applications. Since Ni(OH)2 is a layered material, anions are intercalated into the interlayer spaces. Anion intercalation can be a potential impurity doping technique for Ni(OH)2 films. In this study, we investigated the conduction type of Ni(OH)2 intercalated with eosin Y. Ni(OH)2 films formed by electrochemical deposition were n-type. After the intercalation of eosin Y, the Ni(OH)2 films showed a p-type photocurrent response in photoelectrochemical measurements. The conduction type of the films was changed from n-type to p-type by the intercalation of eosin Y. In addition, the p-type Ni(OH)2 films were used to form heterojunctions. The n-type ZnO/p-type Ni(OH)2 heterojunction diode exhibited a rectifying behavior. Graphical Abstract

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“…This is due to the fact that Ni-based materials demonstrate the lowest free hydrogen adsorption energy and maximum exchange current density compared to other transition metals. 18,19 Consequently, various researchers have devoted their attention to Ni for generating low-cost water-splitting catalysts, including oxides, 20 hydroxides, 21,22 phosphides, 23,24 and sulfides. [25][26][27] Furthermore, the incorporation of other 3d transition metal sulfides, such as molybdenum sulfides, minimizes charge transfer resistance and enhances electrical conductivity of the composites with low Gibbs adsorption energy for H + .…”

Section: Introductionmentioning

confidence: 99%

Influence of Mo concentration on the structural and electrochemical properties of double-doped Mo–Co–Ni₃S₂/NF composites

Shoaib,

Qiao,

et al. 2024

CrystEngComm

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Nickel hydroxide as a non-noble metal co-catalyst decorated on Cd_0.5Zn_0.5S solid solution for enhanced hydrogen evolution

Abstract: This study researched the mechanism of a co-catalyst composite, providing new possibilities for non-noble metal photocatalysts.

Cited by 9 publications

References 65 publications

Ni(OH)₂ Nanosheet as an Efficient Cocatalyst for Improved Photocatalytic Hydrogen Evolution over Cd_0.9Zn_0.1S Nanorods under Visible Light

Ni(OH)₂ Nanosheet as an Efficient Cocatalyst for Improved Photocatalytic Hydrogen Evolution over Cd_0.9Zn_0.1S Nanorods under Visible Light

Conduction-type conversion in Ni(OH)2 by intercalation of eosin Y

Influence of Mo concentration on the structural and electrochemical properties of double-doped Mo–Co–Ni₃S₂/NF composites

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Nickel hydroxide as a non-noble metal co-catalyst decorated on Cd0.5Zn0.5S solid solution for enhanced hydrogen evolution

Abstract: This study researched the mechanism of a co-catalyst composite, providing new possibilities for non-noble metal photocatalysts.

Cited by 9 publications

References 65 publications

Ni(OH)2 Nanosheet as an Efficient Cocatalyst for Improved Photocatalytic Hydrogen Evolution over Cd0.9Zn0.1S Nanorods under Visible Light

Ni(OH)2 Nanosheet as an Efficient Cocatalyst for Improved Photocatalytic Hydrogen Evolution over Cd0.9Zn0.1S Nanorods under Visible Light

Conduction-type conversion in Ni(OH)2 by intercalation of eosin Y

Influence of Mo concentration on the structural and electrochemical properties of double-doped Mo–Co–Ni3S2/NF composites

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Nickel hydroxide as a non-noble metal co-catalyst decorated on Cd_0.5Zn_0.5S solid solution for enhanced hydrogen evolution

Ni(OH)₂ Nanosheet as an Efficient Cocatalyst for Improved Photocatalytic Hydrogen Evolution over Cd_0.9Zn_0.1S Nanorods under Visible Light

Ni(OH)₂ Nanosheet as an Efficient Cocatalyst for Improved Photocatalytic Hydrogen Evolution over Cd_0.9Zn_0.1S Nanorods under Visible Light

Influence of Mo concentration on the structural and electrochemical properties of double-doped Mo–Co–Ni₃S₂/NF composites