The electrochemical performance of SnO2 quantum dots@zeolitic imidazolate frameworks-8 (ZIF-8) composite material for supercapacitors

Gao, Yanfang; Wu, Jianxiang; Zhang, Wei; Tan, Yueyue; Zhao, Jiachang; Tang, Bohejin

doi:10.1016/j.matlet.2014.04.175

Cited by 77 publications

(33 citation statements)

References 18 publications

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“…Tin oxide quantum dots (QDs)@ZIF‐8 (SnO 2 QDs@ZIF‐8) core–shell heterostructures have previously been synthesized via a simple in situ epoxide precipitation method . In this method, the ZIF‐8 NCs were initially immersed into a mixture solution containing chloride solution and propylene oxide, before being oxidation through the addition of hydrogen peroxide (H 2 O 2 ) to generate the SnO 2 QDs@ZIF‐8 core–shell composites.…”

Section: Strategies For Improving the Functionality Of Zifsmentioning

confidence: 99%

Strategies for Improving the Functionality of Zeolitic Imidazolate Frameworks: Tailoring Nanoarchitectures for Functional Applications

et al. 2017

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Zeolitic imidazolate frameworks (ZIFs), a subclass of metal-organic frameworks (MOFs) built with tetrahedral metal ions and imidazolates, offer permanent porosity and high thermal and chemical stabilities. While ZIFs possess some attractive physical and chemical properties, it remains important to enhance their functionality for practical application. Here, an overview of the extensive strategies which have been developed to improve the functionality of ZIFs is provided, including linker modifications, functional hybridization of ZIFs via the encapsulation of guest species (such as metal and metal oxide nanoparticles and biomolecules) into ZIFs, and hybridization with polymeric matrices to form mixed matrix membranes for industrial gas and liquid separations. Furthermore, the developed strategies for achieving size and shape control of ZIF nanocrystals are considered, which are important for optimizing the textural characteristics as well as the functional performance of ZIFs and their derived materials/hybrids. Moreover, the recent trends of using ZIFs as templates for the derivation of nanoporous hybrid materials, including carbon/metal, carbon/oxide, carbon/sulfide, and carbon/phosphide hybrids, are discussed. Finally, some perspectives on the potential future research directions and applications for ZIFs and ZIF-derived materials are offered.

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Section: Strategies For Improving the Functionality Of Zifsmentioning

confidence: 99%

Strategies for Improving the Functionality of Zeolitic Imidazolate Frameworks: Tailoring Nanoarchitectures for Functional Applications

et al. 2017

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“…al have reported enhanced stability of SnO 2 supported gold nanoparticles over SiO 2 under alkaline conditions. Thus, SnO 2 nanostructures conglomerated with metal/metal oxides have huge potential to explore in applications like gas sensor, supercapacitors, and electrochemical reduction of CO 2…”

Section: Introductionmentioning

confidence: 99%

IrO₂ and Pt Doped Mesoporous SnO₂ Nanospheres as Efficient Electrocatalysts for the Facile OER and HER

et al. 2018

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Electrocatalytic hydrogen and oxygen evolutions via water splitting are very demanding in the context of renewable energy and sustainable environment. We first report the synthesis of wormhole‐like mesoporous tin oxide (MTO‐S) by using sodium lauroyl sarcosinate as structure directing agent under hydrothermal reaction conditions followed by calcination and loading with IrO2 or Pt nanoparticles at its surface by simple wet‐chemical methods. These IrO2 and Pt‐loaded SnO2 nanomaterials are thoroughly characterized by small and wide‐angle powder XRD, nitrogen adsorption/desorption analysis, FTIR, XPS spectroscopy, UHR‐TEM, FE‐SEM, TG/DTA and NH3‐TPD analysis. The electrochemical water splitting measurements of the IrO2 and Pt doped mesoporous SnO2 nanostructured materials suggested fine dispersion of these metal/metal oxide nanoparticles at the mesopore surface and facile electron hopping could enhance the rate of the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) activity of IrO2@MTO‐S and Pt@MTO‐S nanocomposites, respectively. As a result, the IrO2@MTO‐S modified electrode exhibits unprecedented OER activity with a very low overpotential of 240 mV at 10 mA cm−2, which is lower than the state‐of‐the‐art catalyst IrO2/C (360 mV) and other reported catalysis. Pt@MTO‐S also exhibit excellent HER activity with an ultralow overpotential of 73 mV at 10 mA cm−2. These findings may uncover new opportunities for IrO2@MTO‐S and Pt@MTO‐S as OER and HER electrocatalysts for future water electrolysis.

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“…[107] While a very limited number of MOFs have been explored as supercapacitor electrodes, [108,109] it is expected that high surface area MOF-based composite materials could exhibit superior performance. In this context, Tang and co-workers [82] reported the preparation of conditions led to the testing of the composite as an electrochemical capacitor using 6M KOH as the electrolyte. The specific capacitance of SnO 2 @ZIF-8 was 931 F·g -1 at a scan rate of 5 mV·s -1 , which was four times higher than SnO 2 QDs alone and an order of magnitude higher than ZIF-8.…”

Section: Page 17 Of 56mentioning

confidence: 99%

Synthesis and applications of metal-organic framework–quantum dot (QD@MOF) composites

Aguilera‐Sigalat

Bradshaw

2016

Coordination Chemistry Reviews

322

119

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Please cite this article as: J. Aguilera-Sigalat, D. Bradshaw, Synthesis and applications of metal-organic frameworkndashquantum dot (QD@MOF) composites, Coordination Chemistry Reviews (2015), http://dx.doi.org/10. 1016/j.ccr.2015.08.004 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.Page 1 of 56 A c c e p t e d M a n u s c r i p t Highlights:1. General strategies for the synthesis of QD@MOF composites 2. Consideration of the semiconductor behaviour of MOFs 3. Applications of QD@MOF composites, including photocatalysis, light-harvesting, sensing, imaging and gas storage. Future outlook for QD@MOF compositesPage 2 of 56 A c c e p t e d M a n u s c r i p t Synthesis and applications of metal-organic framework -quantum dot (QD@MOF) compositesJordi Aguilera-Sigalat* and Darren Bradshaw* School of Chemistry, University of Southampton, Southampton, U.K. AbstractThe combination of the high surface areas, microporosity and tuneable compositions of metalorganic frameworks (MOFs) with the desirable photo-physical behaviour of semiconductor nanoparticles or quantum dots (QDs), allows the preparation of composite materials with enhanced properties for applications in photocatalysis, energy, gas-storage and sensing. These QD@MOF composites are an emergent class of materials and in this review we discuss current strategies for their synthesis, consider the semiconductor behaviour of MOFs themselves and present the applications of the various materials reported this far grouped by the nature of the QD component.Article contents

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The electrochemical performance of SnO2 quantum dots@zeolitic imidazolate frameworks-8 (ZIF-8) composite material for supercapacitors

Cited by 77 publications

References 18 publications

Strategies for Improving the Functionality of Zeolitic Imidazolate Frameworks: Tailoring Nanoarchitectures for Functional Applications

Strategies for Improving the Functionality of Zeolitic Imidazolate Frameworks: Tailoring Nanoarchitectures for Functional Applications

IrO₂ and Pt Doped Mesoporous SnO₂ Nanospheres as Efficient Electrocatalysts for the Facile OER and HER

Synthesis and applications of metal-organic framework–quantum dot (QD@MOF) composites

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The electrochemical performance of SnO2 quantum dots@zeolitic imidazolate frameworks-8 (ZIF-8) composite material for supercapacitors

Cited by 77 publications

References 18 publications

Strategies for Improving the Functionality of Zeolitic Imidazolate Frameworks: Tailoring Nanoarchitectures for Functional Applications

Strategies for Improving the Functionality of Zeolitic Imidazolate Frameworks: Tailoring Nanoarchitectures for Functional Applications

IrO2 and Pt Doped Mesoporous SnO2 Nanospheres as Efficient Electrocatalysts for the Facile OER and HER

Synthesis and applications of metal-organic framework–quantum dot (QD@MOF) composites

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Product

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IrO₂ and Pt Doped Mesoporous SnO₂ Nanospheres as Efficient Electrocatalysts for the Facile OER and HER