Synthesis of metallic Zn microprisms, their growth mechanism and PL properties

Khan, Waheed S.; Cao, Chuanbao; Zhong, Junyu; Liu, Youyong; Iqbal, Muhammad Azhar

doi:10.1016/j.matlet.2010.07.034

Cited by 15 publications

(7 citation statements)

References 20 publications

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“…For example, when the deposit surface is cover by a thin (~5 nm) ZnO interphase, the Zn crystal grows preferentially along the [002] direction, forming 1D wire-like structures (134). Analogous uniaxial growth along the [002] direction is also reported in vapor deposition of Zn under NH 3 gas, where a Zn 3 N 2 interphase possibly formed by reaction with the NH 3 gas can produce a structuredirecting effect (135). This growth mode suggests that the six side facets are stabilized by the interphase and exhibit lower surface energy than the (002) basal plane.…”

Section: Crystallography Of Zinc Metal Electrodepositsmentioning

confidence: 82%

Controlling electrochemical growth of metallic zinc electrodes: Toward affordable rechargeable energy storage systems

2021

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Scalable approaches for precisely manipulating the growth of crystals are of broad-based science and technological interest. New research interests have reemerged in a subgroup of these phenomena—electrochemical growth of metals in battery anodes. In this Review, the geometry of the building blocks and their mode of assembly are defined as key descriptors to categorize deposition morphologies. To control Zn electrodeposit morphology, we consider fundamental electrokinetic principles and the associated critical issues. It is found that the solid-electrolyte interphase (SEI) formed on Zn has a similarly strong influence as for alkali metals at low current regimes, characterized by a moss-like morphology. Another key conclusion is that the unique crystal structure of Zn, featuring high anisotropy facets resulting from the hexagonal close-packed lattice with a c/a ratio of 1.85, imposes predominant influences on its growth. In our view, precisely regulating the SEI and the crystallographic features of the Zn offers exciting opportunities that will drive transformative progress.

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Section: Crystallography Of Zinc Metal Electrodepositsmentioning

confidence: 82%

Controlling electrochemical growth of metallic zinc electrodes: Toward affordable rechargeable energy storage systems

2021

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“…The XRD spectrum in Figure 1c indicates that the diffraction peaks agree well with the hexagonal phase of Zn (Joint Committee for Powder Diffraction Standards (JCPDS) No. 04-0831) [33,34].…”

Section: Resultsmentioning

confidence: 99%

ZnO Nanorods Grown on Rhombic ZnO Microrods for Enhanced Photocatalytic Activity

et al. 2022

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In this paper, the formation of rhombic ZnO microrods surrounded by ZnO nanorods was realized on the surfaces of zinc foils using a hydrothermal method. The photocatalytic degradation of Rhodamine B solution was used to test the photocatalytic performance of the prepared samples. Compared with the rhombic Zn(OH)F and ZnO microrods grown on zinc foils, the hierarchical micro/nanostructures formed by ZnO nanorods surrounding the surfaces of rhombic ZnO microrods have better photocatalytic performance. The experimental results are mainly due to the fact that the hierarchical ZnO micro/nanostructures formed by ZnO nanorods surrounding the surface of the rhombic ZnO microrods have a larger surface area compared with the rhombic Zn(OH)F and ZnO microrods. More importantly, the photocatalytic circulation experiments indicate that ZnO nanorods grown on rhombic ZnO microrods can be recycled and have a relatively stable photocatalytic performance.

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“…The UV emission at 353 nm may be attributed to surface oxidation effects or interband radiative recombination [11][12][13]. Owing to xenon illumination effect, electrons in the upper d bands are excited to vacant conduction bands thereby giving rise to holes at d bands and these holes move closer to the conduction band electrons near the Fermi surface through the intraband scattering which results in PL emission due to interband radiative relaxation.…”

Section: Resultsmentioning

confidence: 99%

Single crystalline multi-petal Cd nanoleaves prepared by thermal reduction of CdO

Khan

Cao

Aslam

et al. 2013

Materials Research Bulletin

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Synthesis of metallic Zn microprisms, their growth mechanism and PL properties

Cited by 15 publications

References 20 publications

Controlling electrochemical growth of metallic zinc electrodes: Toward affordable rechargeable energy storage systems

Controlling electrochemical growth of metallic zinc electrodes: Toward affordable rechargeable energy storage systems

ZnO Nanorods Grown on Rhombic ZnO Microrods for Enhanced Photocatalytic Activity

Single crystalline multi-petal Cd nanoleaves prepared by thermal reduction of CdO

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