Shape-controlled synthesis of copper telluride micro/nanostructures via a simple electrochemical deposition route

Ni, Yonghong; Zhang, Huying; Xi, Junjun; Wang, Xuemei; Zhang, Yongmei; Xiao, Yao; Ma, Xiang; Hong, Jianming

doi:10.1039/c4ce00999a

Cited by 10 publications

(5 citation statements)

References 20 publications

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“…This interaction resulted in the crystallization of flower-like superstructures. 209 Furthermore, Bi 2 Te 3 and its alloys are currently the most widely used thermoelectric materials for room temperature power generators or coolers. Bi x Te 1-x hollow nanofibers were produced by galvanic displacement reaction of electrospun nickel nanofibers at room temperature.…”

Section: +mentioning

confidence: 99%

Polyvinylpyrrolidone (PVP) in nanoparticle synthesis

et al. 2015

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Colloidal synthesis offers a route to nanoparticles (NPs) with controlled composition and structural features. This Perspective describes the use of polyvinylpyrrolidone (PVP) to obtain such nanostructures. PVP can serve as a surface stabilizer, growth modifier, nanoparticle dispersant, and reducing agent. As shown with examples, its role depends on the synthetic conditions. This dependence arises from the amphiphilic nature of PVP along with the molecular weight of the selected PVP. These characteristics can affect nanoparticle growth and morphology by providing solubility in diverse solvents, selective surface stabilization, and even access to kinetically controlled growth conditions. This Perspective includes discussions of the properties of PVP-capped NPs for surface enhanced Raman spectroscopy (SERS), assembly, catalysis, and more. The contribution of PVP to these properties as well as its removal is considered. Ultimately, the NPs accessed through the use of PVP in colloidal syntheses are opening new applications, and the concluding guidelines provided herein should enable new nanostructures to be accessed facilely.

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Section: +mentioning

confidence: 99%

Polyvinylpyrrolidone (PVP) in nanoparticle synthesis

et al. 2015

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“…Several morphologies were acquired (including nanorod arrays, dendritic structures and nanowires), by tuning experimental parameters such as Cu and Te sources, deposition currents and media. 53 Moreover, a fast solvothermal pathway was described by Han et al for the preparation of copper telluride nanocubes, 2D nanosheets and NPs in inert conditions. These researchers systematically investigated the effect of synthetic parameters on the shape, crystal phase and composition of their nanomaterials.…”

Section: M-based-te Nanoparticles (M = Metal or Metalloid)mentioning

confidence: 99%

“…The last two decades have witnessed tremendous progress in development of solution-based methods for the shape-controlled synthesis of noble metal and metal chalcogenide nanocrystals to maximise their efficiency in related applications. 6,10,11,23,36,38,39,43,[51][52][53][54][55][56][57][58][59][60] Despite the great success in the synthesis of various morphologies of nanocrystals, there is still a lack of experimental control and mechanistic understanding of nucleation and growth processes involved in the nanocrystal synthesis. Nowadays, there are few general approaches that one can follow for controlling the final shape of nanocrystals.…”

Section: Introductionmentioning

confidence: 99%

Nanocrystal engineering of noble metals and metal chalcogenides: controlling the morphology, composition and crystallinity

et al. 2015

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The term "Nanocrystal Engineering" can be defined as the design and synthesis of nanocrystals with desired morphologies and compositions based on understanding and exploitation of the nucleation and growth process. It is a key process in advancing the applications of nanomaterials including biosensing, catalysis, photonics, electronics and photovoltaics. As compared to the accomplishments of organic synthesis, we are still far from the complete understanding and experimental control over the synthesis of nanocrystals with well-defined morphology. However, the last two decades of research have resulted in excellent control over the morphology and composition of noble metal and metal chalcogenide nanocrystals. In this Highlight article, we summarize various standard protocols and recent advances for the shape-controlled synthesis of such nanocrystals. From the discussion in this article, it is clear that significant progress has been made toward the design and synthesis of nanocrystals with desired shape, crystallinity and composition by controlling the nucleation and growth process using specific synthetic protocols. We hope that this Highlight article will help researchers to follow some general rules to engineer the morphology and composition of noble metal and metal chalcogenide nanocrystals to maximise their efficiency for various applications.

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“…Moreover, other metal tellurides can be synthesized using the same method as the extended work. Y. Ni et al 15 developed copper telluride nanorods via an electrodeposition route using various media, which can be obtained in less time. R. Reisfeld 16 studied the semiconducting metal preparation through the sol-gel method and analysed the optical behaviour.…”

Section: Introductionmentioning

confidence: 99%