Effect of synthesis conditions on the performance of weakly agglomerated nanocrystalline NiO

Xin, Xiaozhou; Lü, Zhe; Zhou, Baibin; Huang, Xiqiang; Zhu, Rong; Sha, Xueqing; Zhang, Yaohui; Su, Wenhui

doi:10.1016/j.jallcom.2006.02.064

Cited by 58 publications

(46 citation statements)

References 17 publications

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“…At 700°C, the weight loss of 19.192% is observed, which is very close to the stoichiometric weight loss 19.426% calculated from equation (2) for the removal of one H 2 O molecule from Ni(OH) 2 . Since the weight of the NiO measured from TG curve (i.e., 80.81%) is almost equal to calculated value (i.e., 80.56%), it is confirmed that the sample calcined at 700°C is pure.…”

Section: Resultssupporting

confidence: 81%

“…TGA and DTA analysis of Ni(OH) 2 Thermo gravimetric and the differential thermo gravimetric analysis of as synthesized Nickel hydroxide nanoparticles was carried out under Nitrogen atmosphere at a heating rate of 10°C/min in the temperature range of 35°C-750°C to investigate the thermal changes occurred during calcination (Figure 2). Three steps of weight loss are observed in the TG curve accompanied by three endothermic peaks in the DTG curve.…”

Section: Resultsmentioning

confidence: 99%

“…Since the weight of the NiO measured from TG curve (i.e., 80.81%) is almost equal to calculated value (i.e., 80.56%), it is confirmed that the sample calcined at 700°C is pure. 2 DSC analysis were also performed to measure the temperature and heat flow associated with transition in Nickel hydroxide sample from 0°C to 445°C at 10°C/min (Figure 3). The heating curve indicates that two strong endothermic peaks at 93°C and 292°C corresponds to crystallization and crystalline melt respectively which is in good agreement with DTA result.…”

Section: Resultsmentioning

confidence: 99%

“…The research in the area of nanostructure metal oxides have attracted extensive interest due to their novel optical, electronic, magnetic, thermal, catalytic and mechanical properties in comparison with their bulk materials [1,2]. Nickel oxide is a transition metal oxide, P-type semiconductor with a wide energy gap of 3.6 eV-4 eV [3].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Calcination Time on Structural, Optical and Antimicrobial Properties of Nickel Oxide Nanoparticles

Br¹,

Xr²

2016

J Theor Comput Sci

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Nickel oxide nano crystallites were synthesized using Nickel [II] Chloride and Sodium hydroxide. The Thermo Gravimetric and Differential Thermo gravimetric (TGA/DTA) analysis were done to study the thermal behavior of the as synthesized sample Ni(OH)2. The peak at 290°C in DTA may be related to the decomposition of Ni(OH)2 into NiO. The structural, optical properties, morphology and composition of NiO nano particles (NPs) were studied by various techniques such as XRD, FTIR, UV-Vis, PL, FESEM and EDAX. The antimicrobial activity were carried out against Gram positive and Gram negative bacteria and NiO NPs showed inhibitory activity in both strains of bacteria with excellent selectivity against Gram-positive bacteria.

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Section: Resultssupporting

confidence: 81%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Calcination Time on Structural, Optical and Antimicrobial Properties of Nickel Oxide Nanoparticles

Br¹,

Xr²

2016

J Theor Comput Sci

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“…Nanostructured metal oxides have been extensively studied due to both scientific interests and potential applications [2]. Metal oxide nanoparticles (NPs) can adopt a large variety of structural geometries.…”

Section: Introductionmentioning

confidence: 99%

Structure and Physical Properties of NiO/Co3O4 Nanoparticles

Naseri

Dehzangi²,

Kamari

et al. 2016

Metals

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Abstract:The thermal treatment method was employed to prepare nickel-cobalt oxide (NiO/Co 3 O 4 ) nanoparticles. This method was attempted to achieve the higher homogeneity of the final product. Specimens of nickel-cobalt oxide were characterized by various experimental techniques, including X-ray diffraction (XRD), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FTIR). X-ray diffraction results showed that there was no crystallinity in the predecessor, and it still had the amorphous phase. The formations of the crystalline phases of the nickel-cobalt oxide nanoparticles started from 350-500˝C, and the final products had different crystallite sizes ranging from 11-35 nm. Furthermore, the variation of DC conductivity (σ dc ), impedance, tangent loss (tgδ) and dielectric constant (ε 1 ) of the calcined specimens with frequency in the range of 10 2 -10 6 Hz was investigated. σ dc showed a value of 1.9ˆ10´6 S/m, 1.3ˆ10´6 S/m and 1.6ˆ10´6 S/m for the specimens calcined at 350, 400 and 450˝C, respectively. Additionally, a decrease in tgδ values with an increase in temperature was observed. Finally, the formed nanoparticles exhibited ferromagnetic behaviors, which were confirmed by using a vibrating sample magnetometer (VSM).

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New simple La‐Ni complexes as efficient precursors for functional LaNiO₃‐based ceramics

Гавриков

Belova

Yapryntsev

et al. 2021

Applied Organom Chemis

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Perovskite LaNiO 3 is of immense significance in a range of fields such as heterogeneous catalysis. Herein, new convenient approach for preparing LaNiO 3 via thermolysis of new simple complexes, [Ni (bpyis 1,10-phenanthroline), is reported. These first examples of unambiguously characterized LaNiO 3 precursors are chemically stable and can be synthesized rapidly in good yields. While virtually monophasic LaNiO 3 can be prepared from 2 via only 3-h annealing on air at 800 C, there are always minor admixtures in oxide samples prepared from 1. Peculiarities of intrinsic thermal transformations of 1 and 2 affecting such difference have been revealed. Thus,

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Effect of synthesis conditions on the performance of weakly agglomerated nanocrystalline NiO

Cited by 58 publications

References 17 publications

Effect of Calcination Time on Structural, Optical and Antimicrobial Properties of Nickel Oxide Nanoparticles

Effect of Calcination Time on Structural, Optical and Antimicrobial Properties of Nickel Oxide Nanoparticles

Structure and Physical Properties of NiO/Co3O4 Nanoparticles

New simple La‐Ni complexes as efficient precursors for functional LaNiO₃‐based ceramics

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Effect of synthesis conditions on the performance of weakly agglomerated nanocrystalline NiO

Cited by 58 publications

References 17 publications

Effect of Calcination Time on Structural, Optical and Antimicrobial Properties of Nickel Oxide Nanoparticles

Effect of Calcination Time on Structural, Optical and Antimicrobial Properties of Nickel Oxide Nanoparticles

Structure and Physical Properties of NiO/Co3O4 Nanoparticles

New simple La‐Ni complexes as efficient precursors for functional LaNiO3‐based ceramics

Contact Info

Product

Resources

About

New simple La‐Ni complexes as efficient precursors for functional LaNiO₃‐based ceramics