In2O3 nanostructures: synthesis and chlorobenzene sensing properties

Tang, Yunjing; Ma, Jianmin

doi:10.1039/c3ra46554c

Cited by 23 publications

(6 citation statements)

References 59 publications

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“…26 In the recent years, few research studies based on semi-conductive metal oxides have been reported for the reliable detection of CBZs. As reported previously, Pt-decorated ZnO NCs, 27 Au-decorated ZnFe 2 O 4 yolk-shell spheres, 28 In 2 O 3 nano-rods, 29 Pd NPs on porous ZnO nano-plates, 30 and coral-like SnO 2 nanostructures 31 have been reported as efficient sensing mediators for the reliable detection of CBZs. Besides this, FeO/CdO nanocubes and MCM-41 material-decorated GCEs have performed potentially to detect CBZs in an electrochemical approach.…”

Section: Introductionsupporting

confidence: 61%

A novel highly selective electrochemical chlorobenzene sensor based on ternary oxide RuO₂/ZnO/TiO₂ nanocomposites

et al. 2020

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Section: Introductionsupporting

confidence: 61%

A novel highly selective electrochemical chlorobenzene sensor based on ternary oxide RuO₂/ZnO/TiO₂ nanocomposites

et al. 2020

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“…A similar trend is noted for the {102}, {110}, {103}, {112}, and {201} reflections of ZnO at 48.2°, 57.2°, 63.4°, 68.4°, and 69.6°, respectively. These features drop in intensity and are replaced by {440} and {622} in In 2 O 3 at 51.8° and 61.5°, respectively . This prompts toward a gradual increase of the In 2 O 3 .…”

Section: Resultsmentioning

confidence: 96%

Binary Indium–Zinc Oxide Photoanodes for Efficient Dye‐Sensitized Solar Cells

Kunzmann

Stanzel

Costa

et al. 2015

Advanced Energy Materials

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typically made from TiO 2 , [ 3,6 ] ZnO photoanodes have emerged, in recent years, as a viable alternative. [ 7,8 ] First, ZnO fi lms feature higher electron mobilities (155 cm 2 V −1 s −1 at 300 K) and a wider band gap (3.4 eV) relative to TiO 2 fi lms. [ 7 ] Second, the ease of preparation of ZnO nanostructures compared to TiO 2 is a further asset. [ 7 ] Third, the electron injection and recombination dynamics under comparable operation conditions are similar for both types of electrodes.The most signifi cant drawbacks of ZnObased DSSCs are, however, their low stability under working conditions in acidic environments and their prominent electron loss processes. For example, injected conduction band (CB) electrons tend to recombine with either the oxidized dye or the electrolyte in close proximity to the electrode surface. In addition, low injection yields lead to relaxation processes, in which the excited dye relaxes to the ground state. The earlier and the latter, which impact the electron lifetime and the effective electron diffusion length throughout the electrode, result in poor charge collection effi ciencies. [ 9 ] Hence, research toward more effi cient and stable ZnO-based electrodes is at the forefront of investigations. [ 6 ] To tackle these aspects, different groups have demonstrated the potential of n-or p-type doping of ZnO electrodes in the context of reducing charge recombination rates-arsenic, aluminum, carbon nanotubes, gallium, graphene, lithium, potassium, tin, etc., as well as nitrogen and phosphorous are the most commonly employed doping reagents. [ 8,[10][11][12] To this end, most of the efforts have focused on zinc stannate (SZO), [ 13,14 ] reaching maximum effi ciencies of as high as 6%. [ 14 ] SZO-based devices feature high stability, good fi ll factors (FF), and high open circuit voltages ( V oc ). [ 14 ] The limiting factor is, however, the moderate short-circuit current density ( J sc ) of around 15 mA cm −2 . To achieve high effi ciencies in binary metal oxide electrodes in DSSCs, the latter calls for improvement by means of optimizing the overall charge collection effi ciency. To this end, the current work documents the optimization of indium-zinc oxide (IZO) as photoanode materials that could compete with the state-of-the-art SZO devices. Our choice of IZO is based on the fact that their fi lms feature higher electron conducting properties than SZO, [ 15 ] from which longer electron lifetimes and higher charge collection effi ciencies are expected to amplify J sc .The benefi ts of incorporating binary metal-oxide electrodes en route toward effi cient dye-sensitized solar cells (DSSCs) have recently emerged. The current work aims at realizing effi cient indium-doped zinc oxide based DSSCs by means of enhancing charge transport processes and reducing recombination rates. Electrochemical impedance spectroscopic assays corroborate that low amounts of indium reduce charge transport resistances and increase electron recombination resistances. The latter are in concert with a remark...

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“…4 The simple electronic gas-sensing system is prominent candidate for use in chlorobenzene detection. 5 The development of gas-sensitive materials is the key, and the research on metal-oxide-based gas sensors has attracted much attention. 6 ZnO has been widely used in the past few decades as a wellknown gas-sensing material.…”

Section: Introductionmentioning

confidence: 99%

Well-dispersed Pd nanoparticles on porous ZnO nanoplates via surface ion exchange for chlorobenzene-selective sensor

Feng

Gao

et al. 2019

RSC Adv.

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In2O3 nanostructures: synthesis and chlorobenzene sensing properties

Cited by 23 publications

References 59 publications

A novel highly selective electrochemical chlorobenzene sensor based on ternary oxide RuO₂/ZnO/TiO₂ nanocomposites

A novel highly selective electrochemical chlorobenzene sensor based on ternary oxide RuO₂/ZnO/TiO₂ nanocomposites

Binary Indium–Zinc Oxide Photoanodes for Efficient Dye‐Sensitized Solar Cells

Well-dispersed Pd nanoparticles on porous ZnO nanoplates via surface ion exchange for chlorobenzene-selective sensor

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In2O3 nanostructures: synthesis and chlorobenzene sensing properties

Cited by 23 publications

References 59 publications

A novel highly selective electrochemical chlorobenzene sensor based on ternary oxide RuO2/ZnO/TiO2 nanocomposites

A novel highly selective electrochemical chlorobenzene sensor based on ternary oxide RuO2/ZnO/TiO2 nanocomposites

Binary Indium–Zinc Oxide Photoanodes for Efficient Dye‐Sensitized Solar Cells

Well-dispersed Pd nanoparticles on porous ZnO nanoplates via surface ion exchange for chlorobenzene-selective sensor

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A novel highly selective electrochemical chlorobenzene sensor based on ternary oxide RuO₂/ZnO/TiO₂ nanocomposites

A novel highly selective electrochemical chlorobenzene sensor based on ternary oxide RuO₂/ZnO/TiO₂ nanocomposites