Facile synthesis of self-assembled SnO nano-square sheets and hydrogen absorption characteristics

Iqbal, M. Zubair; Wang, Fengping; Feng, Ting; Zhao, Hailei; Rafiq, Muhammad; Din, Rafi Ud; Farooq, Muhammad; Javed, Qurat Ul Ain; Khan, Dil Faraz

doi:10.1016/j.materresbull.2012.07.002

Cited by 45 publications

(14 citation statements)

References 26 publications

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“…These binding energies of Sn 3d 5/2 are higher than that reported for Sn 2+ (486.4-486.5 eV) and slightly lower than that reported for Sn 4+ (487.2-487.5 eV) [23]. It can thus be hypothesized that both samples might contain tin in both II and IV oxidation states, and the lower Sn 3d 5/2 binding energy of Sn-2 implies larger amount of Sn 2+ in SnO 2−x sample [24,25]. The asymmetric peak was observed in the O-1s region (in figure 3(c)), which can be deconvoluted into two components at binding energies of 530.45 and 532.18 eV for sample Sn-1, and 530.88, 531.74 and 533.67 eV for sample Sn-2, as displayed in figure 2(d) and table 1.…”

Section: Resultsmentioning

confidence: 60%

SnO_x@β–SnO heterostructures and their enhanced photocurrent in photoelectrochemical cell

Zheng

Zeng

Xia

et al. 2020

Mater. Res. Express

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To improve the effective separation of the photogenerated electrons and holes, SnO x @β-SnO composites on titanium meshes were prepared by using a standard one-step hydrothermal procedure. As photoanodes in photoelectrochemical cell, the SnO x @β-SnO composites exhibited a photocurrent density of 150 μA cm −2 at 0.0 V versus Ag/AgCl under visible light illumination. The improved photocurrent can be explained as, the Sn 2+ 5s impurity states in SnO 2 have a band gap energy of 2.24 eV, SnO x @β-SnO composites construct a type-II heterojunction. And titanium meshes have a good conductivity, which is beneficial to transferring electron from the conduction band of SnO 2 to external circuit. Furthermore, the SnO x @β-SnO heterostructures have a larger electrochemical specific surface area, and stronger light absorption from 350-800 nm.

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Section: Resultsmentioning

confidence: 60%

SnO_x@β–SnO heterostructures and their enhanced photocurrent in photoelectrochemical cell

Zheng

Zeng

Xia

et al. 2020

Mater. Res. Express

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“…And hydrothermal reaction time and temperature play an important role for the formation of morphology. In the study of our group's previous similar work, we have reported that the micro‐square structures can be crack and tilt to form nanostructures with increasing the hydrothermal reaction time. Based on the above structural analysis and our previous work, a possible growth mechanism for the self‐assembling nanoflakes‐based crossed SnO architecture is proposed, as illustrated in figure .…”

Section: Resultsmentioning

confidence: 93%

“…As a p‐type semiconductor with wide optical band gap of 2.5 to 3.4 eV, SnO has attracted considerable interest for the applications as anode material, thin film transistor TFT, chemical sensor, hydrogen absorption materials and a precursor for the production of SnO 2 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of nanoflakes‐based self‐assembling crossed structure of stannous oxide and photocatalysis property

Cui

Wang

Iqbal

et al. 2015

Crystal Research and Technology

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Self-assembling nanoflakes-based crossed architectures of stannous oxide (SnO) were successfully synthesized via template-free hydrothermal growth method by using SnCl 2 ·2H 2 O and KOH as precursors. Crystal structures, morphology, chemical composition and optical properties were examined by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), energy dispersive X-ray analysis, and Raman spectroscopy, respectively. The results indicate that the as-synthesized product belongs to tetragonal phase SnO with crossed morphology self-assembled by nanoflakes. Furthermore, UV-vis spectrophotometry was used to determine optical band gap of the SnO nanostructures and the direct band gap of 2.90 eV was obtained. The photocatalysis of the product has been evaluated with methyl orange and the high degradation ratio of 87% is obtained in 240 minutes under the measuring condition which is attributed to the wide band gap and large specific surface area of the nanoflakes-based crossed SnO architectures. A possible growth mechanism is proposed in the end.

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“…Many chemical and physical methods have been used to prepare tin oxide micro and nanostructures such as thermal decomposition, thermal chemical vapour deposition (CVD), solvothermal, RF sputtering, the hydrothermal method, the sol–gel method and surfactant assisted methods [1, 2]. Among the chemical methods, the solvothermal approach has more advantages compared with above‐mentioned methods in several aspects, such as simple manipulation, low reaction temperature, short processing time and less complicated equipment being involved [3].…”

Section: Introductionmentioning

confidence: 99%

Solvothermal synthesis, characterisation and luminescent property of multilayered SnO ₂ hollow microspheres

Wang

et al. 2014

Micro & Nano Letters

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Multilayered nanocrystalline SnO 2 hollow microspheres (MHS-SnO 2) of a rutile structure with a controllable morphology have been successfully synthesised via a chemically induced self-assembly method by using tin chloride pentahydrate and sucrose as precursors in the glycol-water aided solvothermal synthesis. The morphology, composition, structure and luminescent properties of MHS-SnO 2 are characterised by field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM) with selected area electron diffraction, X-ray diffraction, Raman spectroscopy and photoluminescence spectroscopy. The FESEM, TEM and HRTEM images indicate that the as-prepared microspheres show a multilayer structure and the walls of the hollow microspheres are composed of single crystalline nanoparticles. The effect of calcinating temperature on the Raman and optical properties of the product is analysed and a self-assembly growth mechanism of the MHS-SnO 2 is proposed .

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Facile synthesis of self-assembled SnO nano-square sheets and hydrogen absorption characteristics

Cited by 45 publications

References 26 publications

SnO_x@β–SnO heterostructures and their enhanced photocurrent in photoelectrochemical cell

SnO_x@β–SnO heterostructures and their enhanced photocurrent in photoelectrochemical cell

Synthesis of nanoflakes‐based self‐assembling crossed structure of stannous oxide and photocatalysis property

Solvothermal synthesis, characterisation and luminescent property of multilayered SnO ₂ hollow microspheres

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Facile synthesis of self-assembled SnO nano-square sheets and hydrogen absorption characteristics

Cited by 45 publications

References 26 publications

SnO x @β–SnO heterostructures and their enhanced photocurrent in photoelectrochemical cell

SnO x @β–SnO heterostructures and their enhanced photocurrent in photoelectrochemical cell

Synthesis of nanoflakes‐based self‐assembling crossed structure of stannous oxide and photocatalysis property

Solvothermal synthesis, characterisation and luminescent property of multilayered SnO 2 hollow microspheres

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Product

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SnO_x@β–SnO heterostructures and their enhanced photocurrent in photoelectrochemical cell

SnO_x@β–SnO heterostructures and their enhanced photocurrent in photoelectrochemical cell

Solvothermal synthesis, characterisation and luminescent property of multilayered SnO ₂ hollow microspheres