Hydrogen evolution from water using semiconductor nanoparticle/graphene composite photocatalysts without noble metals

Lv, Xiao‐Jun; Fu, Wen; Chang, Hai; Zhang, Hao; Cheng, Jin Sheng; Zhang, Gui Ju; Song, Yang; Hu, Chun Yan; Li, Jing Hong

doi:10.1039/c1jm14502a

Cited by 190 publications

(115 citation statements)

References 44 publications

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“…nanoparticles (NP), active molecules) with the aim of developing novel nanostructures with enriched properties. [6][7][8][9][10][11] The applications of such systems span a broad range of research fields ranging from biomedicine to energy harvesting. For example Stratakis et al reported that graphene oxide (GO)-gold hole transport layers can significantly enhance the efficiency and stability of photovoltaic devices.…”

Section: Introductionmentioning

confidence: 99%

Programming the assembly of gold nanoparticles on graphene oxide sheets using DNA

et al. 2015

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We present a new method to program the covalent binding of gold nanoparticles onto graphene oxide sheets. The binding selectivity is driven by the synergy of chemically modified oligonucleotides, grafted onto the surfaces of nanoparticles and graphene oxide. In the presence of a templating complementary DNA strand, nanoparticles are brought near the surface of the graphene oxide. Once in close proximity, the DNA strands are ligated to create a permanent link between the nanoparticles and graphene oxide, ensuring stability of the system even during DNA melting conditions. Due to the selectivity and specificity of DNA, a second layer of gold nanoparticles of different size can be grafted on the top of the first layer of particles. The simplicity of this new method allows for its universal applicability when the formation of highly programmable, covalently linked hybrid nanoparticle-graphene oxide structures is a necessity.

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Section: Introductionmentioning

confidence: 99%

Programming the assembly of gold nanoparticles on graphene oxide sheets using DNA

et al. 2015

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“…It suggests that, besides working as an electron acceptor and transporter, RGO is also an excellent cocatalyst to reduce H + to H 2 molecule in this system. This role of graphene was also reported in many other systems such as RGO/TiO 2 [90], RGO/ZnIn 2 S 4 [91], CdS/RGO [92], and CdS/ZnO/RGO [93]. Moreover, graphene-based composites proved to be good cocatalysts for photocatalytic H 2 generation.…”

Section: Graphene-based Mixed-colloid Photocatalytic Systemsmentioning

confidence: 86%

Graphene‐Based Solar‐Driven Water‐Splitting Devices

Gong

2015

Graphene‐based Energy Devices

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IntroductionHuman beings are now experiencing the culmination of a fast growth period in economics and technology. But the huge consumption of fossil fuels and the severe deterioration of the environment have restricted the sustainable development of human society. Sufficiently utilizing clean and renewable energy resources is considered as the ultimate solution to the above issues, and has attracted worldwide interest in recent decades [1].Actually, energy from sunlight that arrives on the earth in 1 h is more than all of the energy consumed by humans in an entire year; thus an affordable future can be certainly achieved if solar energy, the most abundant renewable energy in the earth, is efficiently exploited [2]. However, because of the daily and seasonal variability of sunlight, a cost-effective way in which solar energy can be captured, converted, and stored is highly desired. The most widely recognized method for cost-effective massive energy storage is in the form of chemical bonds. Thus, great attention has been given to the development of highly effective technologies for conversion of solar energy to chemical fuels [3,4].Splitting water into hydrogen and oxygen by using sunlight is a promising approach to solar energy storage [1,4]. Among various technologies, direct photolysis of water upon semiconductors, which was first demonstrated by Fujishima and Honda [5] in 1972, is seen as the best path toward this objective, because it is convenient and cost effective, and has huge potential for further development. Therefore, tremendous efforts have been made during the past 40 years to approach this Holy Grail, that is, solar-driven water splitting [6-10].For realizing solar-driven water splitting, one requires, at the minimum, a light absorber, fuel-forming catalysts, and an electrolyte [11,12]. Among them, the light absorber and the catalysts are the two key components that directly determine the final solar conversion efficiency. Hence, most of the research activities in the field of solar-driven water splitting are centralized on the development of light absorbers and catalysts with high efficiency, long durability, and excellent scalability. Several reviews have comprehensively summarized the current achievements Graphene-based Energy Devices, First Edition. Edited by A. Rashid bin Mohd Yusoff.

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“…5.3). In addition, binary composites of GO/TiO 2 [20,21], GO/AgBr [22], GO/g-C 3 N 4 [23], GO/3C-SiC [24] [26] have also been investigated; all of them showing higher photocatalytic H 2 evolution than the bare semiconductors.…”

Section: Binary and Ternary Composites By Go And Semiconductormentioning

confidence: 99%

Application of GO in Energy Conversion and Storage

Zhao

Liu

2014

SpringerBriefs in Physics

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The increasing depletion of fossil fuel inspires the demand for renewable energy and energy-efficient devices. GO-based materials emerge in applications of energy storage and conversion with superior advantages. Especially, the composition of GO with specified materials not only retains the inherent characteristics of GO but also induces various characters for improving the performance in energy conversion and storage. Due to the large surface area and ample oxygen containing functional groups, GO can bind many active materials or catalysts for hydrogen storage and generation. Moreover, the functional groups enable GO to further couple with other species and thus form various porous or hierarchical architectures as electrodes, electrolyte or current collector in the lithium batteries and supercapacitors.

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Hydrogen evolution from water using semiconductor nanoparticle/graphene composite photocatalysts without noble metals

Cited by 190 publications

References 44 publications

Programming the assembly of gold nanoparticles on graphene oxide sheets using DNA

Programming the assembly of gold nanoparticles on graphene oxide sheets using DNA

Graphene‐Based Solar‐Driven Water‐Splitting Devices

Application of GO in Energy Conversion and Storage

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