Facile preparation and highly efficient photocatalytic hydrogen evolution of novel CuxNiy nanoalloy/graphene nanohybrids

Literature Information

Publication Date 2017-01-10
DOI 10.1039/C6SE00091F
Impact Factor 6.367
Authors

Xiangqing Li, Honglei Xu, Qiang Luo, Shizhao Kang, Lixia Qin, Guodong Li, Jinghui Yang


View Original

Abstract

Graphene nanohybrids loaded with CuxNiy bimetallic nanoalloys (CuxNiy/G) were obtained via a facile co-reduction process. The composition and structure of the CuxNiy/G were characterized by X-ray diffraction, high resolution transmission electron microscopy and X-ray photoelectron spectroscopy. The results showed that, besides composition, the size and morphology of CuxNiy particles on the graphene were different from those of Cu particles or Ni particles on graphene by the same preparation process. Furthermore, with eosin Y and rose bengal (ER) as co-sensitizers, and the CuxNiy bimetallic nanoalloy as the co-catalyst, the photocatalytic activity of hydrogen evolution over the CuxNiy/G increased and reached 5.05 mmol g−1 h−1 when the molar ratio of Cu2+ to Ni2+ was 1 : 3. Compared with that of pure graphene (G), its activity was enhanced by up to 8.2 times. It was also higher than those of Cu or Ni loaded G, and even comparable to that of Pt loaded graphene under the same conditions. The higher activity of the CuxNiy/G could be attributed to the small size effect and special morphology of the CuxNiy alloy, fast interfacial electron transfer and synergic interaction in the CuxNiy/G system. Therefore, the CuxNiy bimetallic nanoalloy could act as a cheap and highly efficient noble metal-free cocatalyst for enhancing photocatalytic activity for hydrogen production over graphene-based photocatalysts.

Related Literature

Magnetic properties of nanoparticles as a function of their spatial distribution on liposomes and cells

Maria Eugenia Fortes Brollo, Patricia Hernández Flores, Lucía Gutiérrez, Christer Johansson, Domingo Francisco Barber, María del Puerto Morales

2018-06-05 Paper

DOI: 10.1039/C8CP03016B

Delocalized hole transport coupled to sub-ns tryptophanyl deprotonation promotes photoreduction of class II photolyases

Fabien Lacombat, Agathe Espagne, Nadia Dozova, Pascal Plaza, Elisabeth Ignatz, Stephan Kiontke, Lars-Oliver Essen

2018-09-20 Paper

DOI: 10.1039/C8CP04548H

Bi2Se3 topological insulator at the 2D-limit: role of halide-doping on Dirac point

Salma Khatun, Hrishikesh Bhunia, Amlan J. Pal

2018-06-08 Paper

DOI: 10.1039/C8CP02604A

Influence of Ce3+ polarons on grain boundary space-charge in proton conducting Y-doped BaCeO3

Jonathan M. Polfus, Mehdi Pishahang, Rune Bredesen

2018-06-04 Paper

DOI: 10.1039/C8CP00168E

Ion collision-induced chemistry in pure and mixed loosely bound clusters of coronene and C60 molecules

Alicja Domaracka, Rudy Delaunay, Arkadiusz Mika, Michael Gatchell, Henning Zettergren, Henrik Cederquist, Patrick Rousseau, Bernd A. Huber

2018-05-02 Paper

DOI: 10.1039/C8CP01179F

The effect of hydration on the electronic structure and stability of the superalkali cation Li3+

Jia-Huan Hou, Di Wu, Jia-Yuan Liu, Si-Yi Li, Dan Yu, Ying Li

2018-05-02 Paper

DOI: 10.1039/C8CP00862K

Thermoelectrochemical cells based on Li+/Li redox couples in LiFSI glyme electrolytes

Kyunggu Kim, Hochun Lee

2018-08-29 Paper

DOI: 10.1039/C8CP03155J

Insights into the complex interaction between hydrophilic nanoparticles and ionic surfactants at the liquid/air interface

Jingyu Jin, Xiaoyan Li, Jiafeng Geng, Dengwei Jing

2018-05-03 Paper

DOI: 10.1039/C8CP01838C

Surface premelting/recrystallization governing the collapse of open-cell nanoporous Cu via thermal annealing

L. Wang, X. M. Zhang, L. Deng, J. F. Tang, S. F. Xiao, H. Q. Deng, W. Y. Hu

2018-05-21 Paper

DOI: 10.1039/C8CP02287A

You might also like

Compound Q&A

Is 2-(2-chloroacetamido)-3-phenylpropanoic acid (CAS: 7765-11-9) safe?

2-(2-Chloroacetamido)-3-phenylpropanoic acid (CAS: 7765-11-9) is generally consi...

7765-11-92-(2-chloroacetamido...
Compound Q&A

Is 2-(Benzyloxy)-5-bromobenzoic acid (CAS: 62176-31-2) safe?

2-(Benzyloxy)-5-bromobenzoic acid can be handled safely if appropriate precautio...

62176-31-22-(Benzyloxy)-5-brom...
Compound Q&A

What is (4-Methyl-1,2,5-oxadiazol-3-yl)methanamine hydrochloride (CAS: 1159825-48-5)?

(4-Methyl-1,2,5-oxadiazol-3-yl)methanamine hydrochloride is a chemical compound ...

1159825-48-5(4-Methyl-1,2,5-oxad...
Compound Q&A

What is 2-(5-Hexylthiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS: 917985-54-7)?

2-(5-Hexylthiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS: 917985-54...

917985-54-72-(5-Hexylthiophen-2...
Compound Q&A

Are there alternatives to 4-(8-Methyl-9H-1,3-dioxolo[4,5-h][2,3]benzodiazepin-5-yl)benzenamine (CAS: 102771-26-6) in synthesis?

While 4-(8-Methyl-9H-1,3-dioxolo[4,5-h][2,3]benzodiazepin-5-yl)benzenamine (CAS:...

102771-26-64-(8-Methyl-9H-1,3-d...
Compound Q&A

What is the market or research trend for tert-butyl 3-hydroxy-4,5,7,8-tetrahydro-2H-pyrazolo[3,4-d]azepine-6-carboxylate (CAS: 851376-80-2)?

The market for tert-butyl 3-hydroxy-4,5,7,8-tetrahydro-2H-pyrazolo[3,4-d]azepine...

851376-80-2tert-butyl 3-hydroxy...
Compound Q&A

How should waste containing 3,5-Diamino-1H-pyrazole-4-carbonitrile (CAS: 6844-58-2) be handled?

Waste containing 3,5-Diamino-1H-pyrazole-4-carbonitrile (CAS: 6844-58-2) should ...

6844-58-23,5-Diamino-1H-pyraz...
Compound Q&A

How is (6-Fluoro-3-pyridinyl)boronic acid (CAS: 351019-18-6) typically synthesized?

(6-Fluoro-3-pyridinyl)boronic acid can be synthesized through the reaction of 6-...

351019-18-6(6-Fluoro-3-pyridiny...
Compound Q&A

What industries use Dibenzyl carbonimidoylbiscarbamate (CAS: 10065-79-9)?

Dibenzyl carbonimidoylbiscarbamate (CAS: 10065-79-9) finds applications in vario...

10065-79-9Dibenzyl carbonimido...
Compound Q&A

What is the market or research trend for (beta,beta,2,3,4,5,6-~2~H_7_)Phenylalanine (CAS: 74228-83-4)?

The market for (beta,beta,2,3,4,5,6-~2~H_7_)Phenylalanine (CAS: 74228-83-4) is g...

74228-83-4(beta,beta,2,3,4,5,6...
Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.