Nanoplates of α-SnWO4 and SnW3O9 prepared via a facile hydrothermal method and their gas-sensing property

Dong, Hui; Li, Zhaohui; Ding, Zhengxin; Pan, Haibo; Wang, Xuxu; Fu, Xianzhi

doi:10.1016/j.snb.2009.05.010

Cited by 31 publications

(23 citation statements)

References 28 publications

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“…Similar types of XPS spectral feature was reported earlier by Cho et al,Dong et al and Huang et al for their study of SnWO 4 nanomaterials 28,29,32. …”

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confidence: 85%

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Microwave Synthesis of SnWO₄ Nanoassemblies on DNA Scaffold: A Novel Material for High Performance Supercapacitor and as Catalyst for Butanol Oxidation

Ede

Kundu

2015

ACS Sustainable Chem. Eng.

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Self-assembled, aggregated SnWO 4 nano-assemblies are formed by the reaction ofSn(II) salt and Na 2 WO 4 .2H 2 O in the presence of DNA under microwave heating within six minutes. We have emphasized the natural properties of DNA with its ability to scaffold SnWO 4 nano-assemblies and examined the role of starting reagents on the particles morphology. The diameter of the individual particles is ultra-small and varies from ~ 1-2.5 nm. The potentiality of the SnWO 4 nano-assemblies has been tested for the first time in two different applications, such as an anode material in electrochemical supercapacitor studies and as a catalyst for the oxidation of butanol to butanoic acid. From supercapacitor study, it was observed that SnWO 4 nano-assemblies with different sizes showed different specific capacitance (C s ) values and the highest C s value was observed for SnWO 4 nano-assemblies having small size of the individual particles. The highest C s value of 242 F g -1 was observed at a scan rate of 5 mV s -1 for small size SnWO 4 nano-assemblies. The capacitor shows an excellent long cycle life along with 85% retention of C s value even after 4000 consecutive times of cycling at a current density of 10 mAcm -2 . From the catalysis studies, it was observed that SnWO 4 nano-assemblies acted as a potential catalyst for the oxidation of butanol to butanoic acid using eco-friendly hydrogen peroxide as an oxidant with 100 % product selectivity. Other than catalysis and supercapacitor, in futuristic, the material can further be used in sensor, visible light photo-catalysis and energy related applications.Research on nanomaterials, mainly nanoparticles (NPs) has been focused on the assembly strategies to control the specific arrangement of NPs. The morphology controlled synthesis of zero and 1-dimensional (1-D) inorganic nanomaterials have attracted significant interest due to the importance of the geometrical forms of materials in determining their widely varying properties at nanoscale. 1-3 During last few years, a bunch of techniques had been developed for the successful generation of self-assembled NPs into ordered nanostructures. However, there are very few techniques available to organize nanomaterials in a precise 1-D pattern. The 'bottom up' approach and the wet-chemical synthesis have been found to be the most easy and facile way to synthesize self-assemble nanomaterials in 1-D patterns in a short time scale. While considering metal oxide nanomaterials in general, they have been extensively studied owing to their unique magnetic, catalytic and Energy storage properties across a broad range of fundamental and technological potential. In particular, the fields like Energy storage and in catalysis. Electrochemical Supercapacitors show the desirable characteristics of high power density, fast charging, excellent cyclic stability, small size and low mass, when compared with batteries and fuel cells, make them one of the most promising candidates for next generation power devices. 4-7 In general, most commercially available ...

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“…Similar types of XPS spectral feature was reported earlier by Cho et al,Dong et al and Huang et al for their study of SnWO 4 nanomaterials 28,29,32. …”

supporting

confidence: 85%

“…27 Dong et al synthesized α-SnWO 4 via hydrothermal route. 28 Cho et al studied the photo-physical, photo-electrochemical and photo-catalytic properties of SnWO 4 nanomaterials. 29 Ungelenk and Feldmann synthesized β-SnWO 4 nanomaterials via a wet-chemical route.…”

Section: Introductionmentioning

confidence: 99%

Microwave Synthesis of SnWO₄ Nanoassemblies on DNA Scaffold: A Novel Material for High Performance Supercapacitor and as Catalyst for Butanol Oxidation

Ede

Kundu

2015

ACS Sustainable Chem. Eng.

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“…The tungstates continue attracting considerable attention because they are found to be a fascinating family of materials possessing various technological applications such as microwave, scintillation, optical modulation, magnetic and writing-reading-creasing devices, humidity sensors, optical fibers and photoluminescence materials [3,4]. Therefore, many tungstates such as MWO 4 (M = Mn, Fe, Co, Ni and Cu) [5], MnWO 4 [6,7,8], FeWO 4 [1,3,7], CoWO 4 [2,9], NiWO 4 [7,10,11], CuWO 4 [12,13], ZnWO 4 [7,11,14] and CdWO 4 [15] with a wolframite-type structure as well as CaWO 4 [7,16], AWO 4 (A = Ca, Sr) [17], SrWO 4 [7,18,19], SnWO 4 [20,21], BaWO 4 [7,22,23] and PbWO 4 [4,[24][25][26][27] with a scheelite-type structure have been synthesized employing various novel methods, which allow to obtain well-defined and high-pure materials, mainly nanosize tungstates.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal synthesis and electronic properties of FeWO4 and CoWO4 nanostructures

Rajagopal

Nataraj

Khyzhun

et al. 2010

Journal of Alloys and Compounds

150

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“… Figure d,e shows the high‐resolution XPS spectra of the O1s region. The peaks at 532.1 and 535.6 eV correspond to lattice oxygen and surface adsorption oxygen, respectively. In addition, the surface hydroxyl content on SnWO 4 (36.38%) and CTAB‐SnWO 4 (36.12%) has no obvious difference, which indicates that CTAB cannot alter the surface hydroxyl content.…”

Section: Resultsmentioning

confidence: 99%

“…SnWO 4 has two crystalline phases, a lower temperature α‐phase and a high temperature β‐phase . As an n‐type semiconductor, α‐SnWO 4 possesses an orthorhombic crystal structure, in which Sn and W atoms are distorted octahedral oxygen coordinations . α‐SnWO 4 has a narrow bandgap (about 1.64 eV) and can respond to visible light .…”

Section: Introductionmentioning

confidence: 99%

Enhanced simulated sunlight‐driven photocatalytic performance of SnWO₄ prepared in the presence of cetyltrimethylammonium bromide

Huang

Liu

Zhong

et al. 2019

Env Prog and Sustain Energy

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In this paper, SnWO4 photocatalyst with enhanced simulated sunlight‐driven photocatalytic performance was prepared by a hydrothermal method in the presence of cetyltrimethylammonium bromide (CTAB). The samples were characterized by Brunauer–Emmett–Teller method, X‐ray diffraction, UV–vis diffuse reflectance spectroscopy, X‐ray photoelectron spectroscopy, surface photovoltage spectroscopy, and scanning electron microscopy. The active free radicals formed were investigated by electron spin resonance spectroscopy and trapping experiments. Photocatalytic abilities of the photocatalyts were evaluated using methyl orange as model contaminant. The results show that CTAB induces redshift and promotes the photo‐induced charge separation rate of SnWO4, thereby boosting the photocatalytic performance. The photocatalytic test results reveal that the photocatalytic activity of CTAB‐SnWO4 is 7.25 times of the reference SnWO4.

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Nanoplates of α-SnWO4 and SnW3O9 prepared via a facile hydrothermal method and their gas-sensing property

Cited by 31 publications

References 28 publications

Microwave Synthesis of SnWO₄ Nanoassemblies on DNA Scaffold: A Novel Material for High Performance Supercapacitor and as Catalyst for Butanol Oxidation

Microwave Synthesis of SnWO₄ Nanoassemblies on DNA Scaffold: A Novel Material for High Performance Supercapacitor and as Catalyst for Butanol Oxidation

Hydrothermal synthesis and electronic properties of FeWO4 and CoWO4 nanostructures

Enhanced simulated sunlight‐driven photocatalytic performance of SnWO₄ prepared in the presence of cetyltrimethylammonium bromide

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Nanoplates of α-SnWO4 and SnW3O9 prepared via a facile hydrothermal method and their gas-sensing property

Cited by 31 publications

References 28 publications

Microwave Synthesis of SnWO4 Nanoassemblies on DNA Scaffold: A Novel Material for High Performance Supercapacitor and as Catalyst for Butanol Oxidation

Microwave Synthesis of SnWO4 Nanoassemblies on DNA Scaffold: A Novel Material for High Performance Supercapacitor and as Catalyst for Butanol Oxidation

Hydrothermal synthesis and electronic properties of FeWO4 and CoWO4 nanostructures

Enhanced simulated sunlight‐driven photocatalytic performance of SnWO4 prepared in the presence of cetyltrimethylammonium bromide

Contact Info

Product

Resources

About

Microwave Synthesis of SnWO₄ Nanoassemblies on DNA Scaffold: A Novel Material for High Performance Supercapacitor and as Catalyst for Butanol Oxidation

Microwave Synthesis of SnWO₄ Nanoassemblies on DNA Scaffold: A Novel Material for High Performance Supercapacitor and as Catalyst for Butanol Oxidation

Enhanced simulated sunlight‐driven photocatalytic performance of SnWO₄ prepared in the presence of cetyltrimethylammonium bromide