Synthesis, crystal structure and vapour pressure studies of novel nickel complex as precursor for NiO coating by metalorganic chemical vapour deposition technique

Chandrakala, M.; Bharath, S.; Maiyalagan, T.; Arockiasamy, S.

doi:10.1016/j.matchemphys.2017.08.056

Cited by 14 publications

(22 citation statements)

References 69 publications

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“…The first proposed Schiff-base type Ni precursor was reported by Basato et al They synthesized several β-imino carbonyl enolato complexes of nickel(II), one of which was successfully used for metalorganic (MO) CVD of NiO . Recently, Chandrakala et al reported the synthesis and thermal evaluation of the square planar bis( N -propyl-3-methylsalicylaldimine)nickel(II), which was employed in a plasma enhanced MOCVD process for the deposition of NiO . These not only require high volatilization temperatures but also resulted in films contaminated with carbon impurities.…”

Section: Introductionmentioning

confidence: 99%

“…31 Recently, Chandrakala et al reported the synthesis and thermal evaluation of the square planar bis(N-propyl-3-methylsalicylaldimine)nickel(II), which was employed in a plasma enhanced MOCVD process for the deposition of NiO. 32 These not only require high volatilization temperatures but also resulted in films contaminated with carbon impurities.…”

Section: Introductionmentioning

confidence: 99%

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Tuning Coordination Geometry of Nickel Ketoiminates and Its Influence on Thermal Characteristics for Chemical Vapor Deposition of Nanostructured NiO Electrocatalysts

et al. 2020

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Nickel-based nanostructured materials have gained widespread attention, particularly for energy-related applications. Employing chemical vapor deposition (CVD) for NiO necessitates suitable nickel precursors that are volatile and stable. Herein, we report the synthesis and characterization of a series of new nickel β-ketoiminato complexes with different aliphatic and etheric side chain substitutions, namely, bis(4-(isopropylamino)-pent-3-en-2-onato)nickel(II) ([Ni(ipki)2], 1), bis(4-(2-methoxyethylamino)pent-3-en-2-onato)nickel(II) ([Ni(meki)2], 2), bis(4-(2-ethoxyethylamino)pent-3-en-2-onato)nickel(II) ([Ni(eeki)2], 3), bis(4-(3-methoxy-propylamino)-pent-3-en-2-onato)nickel(II) ([Ni(mpki)2], 4), and bis(4-(3-ethoxypropylamino)pent-3-en-2-onato)nickel(II) ([Ni(epki)2], 5). These compounds have been thoroughly characterized with regard to their purity and identity by means of nuclear magnetic resonance spectroscopy (NMR) and electron impact mass spectrometry (EI-MS). Contrary to other transition metal β-ketoiminates, the imino side chain strongly influences the structural geometry of the complexes, which was ascertained via single-crystal X-ray diffraction (XRD). As a result, the magnetic momenta of the molecules also differ significantly as evidenced by the magnetic susceptibility measurements employing Evan’s NMR method in solution. Thermal analysis revealed the suitability of these compounds as new class of precursors for CVD of Ni containing materials. As a representative precursor, compound 2 was evaluated for the CVD of NiO thin films on Si(100) and conductive glass substrates. The as-deposited nanostructured layers were stoichiometric and phase pure NiO as confirmed by XRD, Rutherford backscattering spectrometry (RBS), and nuclear reaction analysis (NRA). X-ray photoelectron spectroscopy (XPS) indicated the formation of slightly oxygen-rich surfaces. The assessment of NiO films in electrocatalysis revealed promising activity for the oxygen evolution reactions (OER). The current densities of 10 mA cm–2 achieved at overpotentials ranging between 0.48 and 0.52 V highlight the suitability of the new Ni complexes in CVD processes for the fabrication of thin film electrocatalysts.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tuning Coordination Geometry of Nickel Ketoiminates and Its Influence on Thermal Characteristics for Chemical Vapor Deposition of Nanostructured NiO Electrocatalysts

et al. 2020

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“…In fact, even with the issue of precursor stability, MOCVD has a fast growth rate and provides a high level of control over film stoichiometry [ 56 ]. As a way to reduce the temperature, plasma-assisted MOCVD (PA-MOCVD) has been employed to produce a stoichiometric NiO phase [ 57 ]. Metal-oxide growth through MOCVD is still a challenge from a chemistry perspective, as the precursors may be volatile and even carbon-rich [ 57 , 58 ].…”

Section: Synthesis Of P-type Mox Thin Filmsmentioning

confidence: 99%

“…As a way to reduce the temperature, plasma-assisted MOCVD (PA-MOCVD) has been employed to produce a stoichiometric NiO phase [ 57 ]. Metal-oxide growth through MOCVD is still a challenge from a chemistry perspective, as the precursors may be volatile and even carbon-rich [ 57 , 58 ].…”

Section: Synthesis Of P-type Mox Thin Filmsmentioning

confidence: 99%

P-Type Metal Oxide Semiconductor Thin Films: Synthesis and Chemical Sensor Applications

Moumen

Kumarage

Comini

2022

Sensors

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This review focuses on the synthesis of p-type metal-oxide (p-type MOX) semiconductor thin films, such as CuO, NiO, Co3O4, and Cr2O3, used for chemical-sensing applications. P-type MOX thin films exhibit several advantages over n-type MOX, including a higher catalytic effect, low humidity dependence, and improved recovery speed. However, the sensing performance of CuO, NiO, Co3O4, and Cr2O3 thin films is strongly related to the intrinsic physicochemical properties of the material and the thickness of these MOX thin films. The latter is heavily dependent on synthesis techniques. Many techniques used for growing p-MOX thin films are reviewed herein. Physical vapor-deposition techniques (PVD), such as magnetron sputtering, thermal evaporation, thermal oxidation, and molecular-beam epitaxial (MBE) growth were investigated, along with chemical vapor deposition (CVD). Liquid-phase routes, including sol–gel-assisted dip-and-spin coating, spray pyrolysis, and electrodeposition, are also discussed. A review of each technique, as well as factors that affect the physicochemical properties of p-type MOX thin films, such as morphology, crystallinity, defects, and grain size, is presented. The sensing mechanism describing the surface reaction of gases with MOX is also discussed. The sensing characteristics of CuO, NiO, Co3O4, and Cr2O3 thin films, including their response, sensor kinetics, stability, selectivity, and repeatability are reviewed. Different chemical compounds, including reducing gases (such as volatile organic compounds (VOCs), H2, and NH3) and oxidizing gases, such as CO2, NO2, and O3, were analyzed. Bulk doping, surface decoration, and heterostructures are some of the strategies for improving the sensing capabilities of the suggested pristine p-type MOX thin films. Future trends to overcome the challenges of p-type MOX thin-film chemical sensors are also presented.

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“…From the obtained values, it is clear that the band gap values depend on both MWCNTs support and the TiO 2 percentages in the binary nanocomposites. The variation of the band gap with increasing the particle size is an important role for photocatalytic activity of MWCNTs/x%TiO 2 nanocomposites [25][26][27]. The functionalization of MWCNTs and TiO 2 is expected to enhance the efficiency of the photocatalytic activity of the produced nanocomposites.…”

Section: (1)mentioning

confidence: 99%

Photodecontamination of Vat Green 1 and Dianix Blue dyes by MWCNTs/x%TiO2 nanocomposites synthesized using evaporation method

El-Sayed

Mohamed

Galal

et al. 2019

Al-Azhar Bulletin of Science

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Multi-walled carbon nanotubes (MWCNTs) were prepared using chemical vapour deposition (CVD) method. MWCNTs/titanium dioxide nanocomposites (MWCNTs/x%TiO 2 ) with different weight ratios of TiO 2 (x = 3, 6 and 10%) were synthesized using a simple modified evaporation method and used as a photocatalysts. Their photocatalytic activity investigated by studying the decontamination of two local textile dyes (Vat Green 1 and Dianix Blue Dyes) as an industrial organic pollutants commonly used in dyeing factories. The structure of the synthesized photocatalysts were characterized using XRD, SEM, diffused reflectance UV-Vis spectroscopic and N 2 adsorption-desorption method. Also, their optical band gaps were estimated, by as 3.51, 2.89, 2.80, 2.69 eV for MWCNTs and MWCNTs/x%TiO 2 respectively. The mineralization of Vat Green 1 and Dianix Blue dyes in presence of MWCNTs and MWCNTs/x%TiO 2 nanocomposites were investigated by determining the decrease in chemical oxygen demand (COD). In addition, the suggested possible mechanism of the photodegradation processes was studied.

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Synthesis, crystal structure and vapour pressure studies of novel nickel complex as precursor for NiO coating by metalorganic chemical vapour deposition technique

Cited by 14 publications

References 69 publications

Tuning Coordination Geometry of Nickel Ketoiminates and Its Influence on Thermal Characteristics for Chemical Vapor Deposition of Nanostructured NiO Electrocatalysts

Tuning Coordination Geometry of Nickel Ketoiminates and Its Influence on Thermal Characteristics for Chemical Vapor Deposition of Nanostructured NiO Electrocatalysts

P-Type Metal Oxide Semiconductor Thin Films: Synthesis and Chemical Sensor Applications

Photodecontamination of Vat Green 1 and Dianix Blue dyes by MWCNTs/x%TiO2 nanocomposites synthesized using evaporation method

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