Microwave assisted fast synthesis of various ZnO morphologies for selective detection of CO, CH4 and ethanol

Hamedani, Naghmeh Faal; Mahjoub, Ali Reza; Khodadadi, Abbas Ali; Mortazavi, Yadollah

doi:10.1016/j.snb.2011.02.028

Cited by 113 publications

(42 citation statements)

References 26 publications

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“…The authors suggested growth occurred from solutions supersaturated with respect to Zn(OH) 4 2-. 25 The occurrence of a hexagonal prismatic morphology [26][27][28][29][30][31] is generally assumed to be a consequence of surface energy effects favouring the development of {10-10} and {0001} crystal faces.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical Growth of ZnO Particles by a Hydrothermal Route

et al. 2014

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ABSTRACT:The crystallization of ZnO microrods by hydrothermal treatment of a suspension formed from reaction of zinc acetate and sodium hydroxide has been examined using scanning and transmission electron microscopy as a function of hydrothermal reaction time. Polycrystalline hexagonal ZnO microrods first appeared after 0.5 h reaction time at 120 °C. These early stage rods were composed of stacks of hexagonal layers, each ~ 50 nm in thickness containing closely aligned assemblies of nanocrystallites < 20 nm in size. A further growth stage involving smaller pseudo-hexagonal columns nucleating and growing along <0001> from the (0001) basal layers of preformed polycrystalline hexagonal microrods was identified. For reaction times > 3h, the microrods were single crystals, as identified by TEM lattice imaging and electron diffraction, and many were in the form of double rods.

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Section: Introductionmentioning

confidence: 99%

Hierarchical Growth of ZnO Particles by a Hydrothermal Route

et al. 2014

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“…The various other applications of ZnO include photocatalysts, varistors, chemical sensors etc. [7][8][9][10]. ZnO nano materials are synthesized by different methods such as sol-gel, gel-casting method, thermal evaporation, chemical spray pyrolysis and so on [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Template free synthesis, characterization and application of nano ZnO rods for the photocatalytic decolourization of methyl orange

Sangari¹,

Jothi²,

Devi³

et al. 2016

Journal of Water Process Engineering

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“…The advantage of metal oxide nanocomposite M 1 O/M 2 O is beyond one of single metal oxide because of the synergistic effect that the redistribution of M 2 O grain on the bulk or the surface of M 1 O grain [3] may result in dramatic changes of M 1 O grain boundaries and its property modification. Being an important rare earth metal oxide and indirect wide band gap semiconductor, Ceria (CeO 2 ) has been applied widely to the fields such as transparent to visible light and UV blockers and filters [4][5][6], gas sensors [7][8][9][10][11], catalyst [12], and oxygen ion conductor in solid oxide fuel cells (SOFCs) [13,14]. Meanwhile, Zinc oxide (ZnO) is a direct band gap semiconductor with high value of exciting binding energy for applications in the fields such as near-ultraviolet emission [15], gas and piezoelectric sensing [16,17], super hydrophobic cleaning materials [18] and as transparent electrode material for solar cells [19].…”

Section: Introductionmentioning

confidence: 99%