Facile preparation, spectral property and application of Ag/ZnO nanocomposites

Peng, Jiehui; Zhan, Pei; Deng, Runkang; Zhang, Yanli; Xie, Xinyuan

doi:10.1007/s11164-019-03854-9

Cited by 9 publications

(4 citation statements)

References 48 publications

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“…In addition, Ag-doped ZnO Nanorod showed additional peaks (marked as ‘spades’) at diffraction angles of 38.11, 44.27, and 64.42°, which corresponded to (111), (200), and (220) planes of Ag metal phases from a cubic crystal structure, respectively, in agreement with JCPDS card (no. 04–0783) . Further, with the increasing amount of Ag doping, the intensity of Ag peaks also increased, but there were no peaks related to Ag-oxides.…”

Section: Resultsmentioning

confidence: 96%

“…04−0783). 44 Further, with the increasing amount of Ag doping, the intensity of Ag peaks also increased, but there were no peaks related to Ag-oxides. After the ECRR test, most of the ZnO characteristic peaks were suppressed significantly and their intensities also decreased at higher Ag doping concentrations, in particular for the (100) plane.…”

Section: Ag-doped Zno Nanorodmentioning

confidence: 94%

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Highly Selective and Durable CO Production via Effective Morphology and Surface Engineering of ZnO Electrocatalysts

Kanase

Arunachalam

Badiger

et al. 2022

ACS Appl. Energy Mater.

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The present work demonstrates the morphological and Ag doping effects of ZnO electrocatalysts toward electrochemical CO 2 reduction reaction (ECRR). To achieve this, three electrocatalysts, i.e., Nanosphere (0D), Nanorod (1D), and Nanosheet (2D), were synthesized via a facile hydrothermal method, and their ECRR performance was evaluated. As an optimal electrocatalyst, the ZnO Nanorod showed unidirectional growth, higher active surface area and roughness factor compared to Nanosphere and Nanosheet electrocatalysts, which led to a high selectivity for CO up to 68% at a high partial current density of 80 mA•cm −2 , maintaining stable performance up to 4 h. Further, to enhance CO selectivity, the Ag doping strategy is employed. With optimal Ag doping (1.0 atom %) in the ZnO Nanorod electrocatalyst, it showed boosted CO selectivity of 91% at a high partial current density of 93.4 mA•cm −2 with stable performance for up to 10 h. This significant enhancement in the ECRR performance using the ZnO electrocatalyst could be attributed to the morphological features (Nanorod) and the enhanced electronic conductivity with Ag doping. Based on these results, it can be inferred that the simultaneous engineering of morphological features and Ag doping can be an effective way to improve the ECRR performance and CO selectivity.

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Section: Resultsmentioning

confidence: 96%

Section: Ag-doped Zno Nanorodmentioning

confidence: 94%

Highly Selective and Durable CO Production via Effective Morphology and Surface Engineering of ZnO Electrocatalysts

Kanase

Arunachalam

Badiger

et al. 2022

ACS Appl. Energy Mater.

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“…The binding energy of O 1s peak separates into two peaks; one is located at 530.9 eV of chemical state (Zn-O) and another one located at 532.46 eV is absorbed onto the surface of the NFs hydroxyl group (Zn-OH). [49,50] The energy-dispersive X-ray (EDX) spectrum analysis was performed to identify the elements and their distribution in the synthesized ZnO-NFs. Figure 2g shows the EDX spectrum of zinc (Zn) and oxygen (O) elements in the ZnO-NFs.…”

Section: Resultsmentioning

confidence: 99%

ZnO Nanoflakes Embedded Polymer Matrix for High‐Performance Mechanical Energy Harvesting

Manchi

Graham

Patnam

et al. 2021

Adv Materials Technologies

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their easy energy conversion ability, ecofriendliness, less weight, easy fabrication, sustainability, and high electrical output. [5,6] Different types of nanogenerators including electromagnetic, triboelectric, pyroelectric, thermoelectric, and piezoelectric nanogenerators have been proposed to harvest these mechanical energies. [6,7] In particular, triboelectric nanogenerator (TENG) is a technology that harvests small-scale mechanical energy and converts it to electricity. [5,8,9] In the year 2012, for the first time, Z. L. Wang and his group proposed TENGs for mechanical energy harvesting. Usually, TENGs operate based on the coupling effects of contact electrification and electrostatic induction. [10][11][12][13][14][15] The TENGs have been also used in various applications, such as portable electronic devices, self-powered sensors, biosensors, healthcare monitoring, etc. [16,17] Unfortunately, the output electrical current of TENGs is still relatively low. Therefore, along with the electrical output enhancement, sustainability, flexibility, cost-effectiveness, and mechanical durability have been further studied by several researchers. [18,19] So far, various techniques have been studied to increase the electrical performance of the TENGs, such as changing surface patterns using plasma treatment, chemical functionalization technique, choosing triboelectric materials, etc. [20][21][22] Also, another promising methodology is to hybridize the TENGs with some other technologies (such as piezoelectric, pyroelectric, and electromagnetic nanogenerators). For example, combining/merging the piezoelectric and triboelectric effects (i.e., synergetic effects) is one of the great methodologies to enhance the electrical performance of the hybridized TENG device. [23][24][25][26] Similarly, combining these two piezoelectric and triboelectric effects can prepare a synergetic active material of hybrid nanogenerator (HNG). [27,28] However, the selection of piezoelectric material consisting of high dielectric constant (k) and large piezoelectric coefficient (d 33 ) is an important factor to enhance the output electricity of nanogenerators. [29,30] Therefore, the piezoelectric material loaded into a triboelectric polymer can be used to enhance the dielectric permittivity and surface charge density of the composite films, which could lead to a strong Nanogenerators have attracted much attention in the past few years due to their high conversion efficiency of mechanical energy into electrical energy that is abundantly available in the environment and everyday human life. Enhancing the electrical output performance of nanogenerator using composite polymeric films (CPFs), i.e., piezoelectric materials embedded in triboelectric polymers, has gained potential interest. The CPFs can provide a high relative permittivity and enhanced surface charge density, resulting in an enhanced electrical output. Herein, piezoelectric zinc oxide (ZnO) nanoflakes (ZnO-NFs) were synthesized by a hydrothermal reaction process and combined with a nylon po...

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“…With the addition of Zn in the matrix, there was a significant increase in antimicrobial activity against bacteria and fungus, and this was directly proportional to the amount of the incorporated Zn up to the concentration of 2%. Improvement in antibacterial efficiency is due to the synergistic effect between Zn and the Ag particles 90 . Additionally, Cr present in the samples also has strong antibacterial activity, causing disruption of amino acid and DNA synthesis, and leading to cell death 91 .…”

Section: Bactericidal and Fungicidal Activitiesmentioning

confidence: 99%

Zinc-substituted Ag2CrO4: A material with enhanced photocatalytic and biological activity

Pinatti

Tello

Trench

et al. 2020

Journal of Alloys and Compounds

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Facile preparation, spectral property and application of Ag/ZnO nanocomposites

Cited by 9 publications

References 48 publications

Highly Selective and Durable CO Production via Effective Morphology and Surface Engineering of ZnO Electrocatalysts

Highly Selective and Durable CO Production via Effective Morphology and Surface Engineering of ZnO Electrocatalysts

ZnO Nanoflakes Embedded Polymer Matrix for High‐Performance Mechanical Energy Harvesting

Zinc-substituted Ag2CrO4: A material with enhanced photocatalytic and biological activity

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