The Influence of Calcination Temperature and Cytotoxicity Assessment of Honeycomb Platinum-Containing Cordierite Nanocomposite Catalysts via Incipient Wetness Impregnation Process

2011 ◽  
Vol 71-78 ◽  
pp. 945-949
Author(s):  
Chang Mao Hung
Keyword(s):  
Fetal Lung ◽  
High Dispersion ◽  
Tissue Cell ◽  
Incipient Wetness Impregnation ◽  
Impregnation Process ◽  
Cultured Human Cells ◽  
Incipient Wetness ◽  
Nanocomposite Catalysts ◽  
Cytotoxicity Assessment ◽  
Ceramic Honeycomb

This work describes the platinum-containingcordieritenanocompositematerials were synthesized by incipient wetness impregnation process with aqueous solutions of H2PtCl6, Pd(NO3)3and Rh(NO3)3that were coated on cordierite ceramic honeycomb substances followed by calcinations temperature ranging from 973 to 1273 K. The nanocomposite materials were characterized by STEM, with a particle size around nanoscale particle sizes (~100 nm) with high dispersion phenomena. Further, cell cytotoxicity and the percentage cell survival was determined by using 3-(4,5-dimethylthiazol-2-yl)-5(3-carboxymethoxyphenol)-2-(4-sulfophenyl)-2H-tetrazoli um (MTS) assay on human fetal lung tissue cell (MRC-5). The experimental results show that the platrinum-containingcordieritenanocompositematerials only minor cause cytotoxicity effect in cultured human cells.

Study on the Properties and Cytotoxicity Assessment of Nanostructure Copper-Cerium Model Catalysts Prepared by Coprecipitation Approach

2010 ◽  
Vol 160-162 ◽  
pp. 1291-1296
Author(s):  
Chang Mao Hung
Keyword(s):  
Fetal Lung ◽  
Copper Nitrate ◽  
Ceo2 Nanoparticles ◽  
High Dispersion ◽  
Tissue Cell ◽  
Particle Sizes ◽  
Cultured Human Cells ◽  
Cytotoxicity Assessment ◽  
Human Fetal Lung ◽  
Mts Assay

Since the growing interest in the manufacture and environmental applications of composites consisting of CuO and CeO2 nanoparticles. This work describes the CuO/CeO2 nanoparticle materials were synthesized by coprecipitation approach with aqueous solutions of copper nitrate and cerium nitrate. The nanocomposite particles were characterized by HRTEM, with a particle size around nanoscale particle sizes (~10 nm) with high dispersion phenomena. Further, cell cytotoxicity and the percentage cell survival was determined by using 3-(4,5-dimethylthiazol-2-yl)-5(3-carboxymethoxyphenol)-2-(4-sulfophenyl)-2H-tetrazoli um (MTS) assay on human fetal lung tissue cell (MRC-5). The experimental results show that the CuO/CeO2 nanoparticle materials only minor cause cytotoxicity effect in cultured human cells.

Fabrication and Cytotoxicity Studies of the TiO2 Doped with Copper-Based Nanocomposite Particles

2011 ◽  
Vol 695 ◽  
pp. 393-396 ◽  
Author(s):  
Chang Mao Hung
Keyword(s):  
Fetal Lung ◽  
Copper Nitrate ◽  
Tissue Cell ◽  
Nanocomposite Particles ◽  
Toxicological Effect ◽  
Cytotoxicity Studies ◽  
Cultured Human Cells ◽  
Cytotoxicity Assessment ◽  
Human Fetal Lung ◽  
Dispersion Character

Since the growing interest in the manufacture and environmental applications of nanocomposites consisting of CuO and TiO2nanoparticles (NPs), related toxicological effect and interaction with cellular structures for these newly developed materials are still unknown. Recent literature reveals that nanosized CuO and TiO2particles have cytotoxicity risks and ability to cause oxidative stress on health. This work considers the CuO doped TiO2nanocomposite particles were synthesized via a coprecipitation method with aqueous solutions as precursors of copper nitrateand titanium dioxide. Moreover, the nanocomposite particles were characterized using TGA-DTA, UV-Vis and TEM measurements. The calcination temperature was selected at 873 K. The nanocomposite particles were characterized by TEM, as the primary particles, aggregates ranged from 30 to 100 nm and have a good dispersion character. Cell cytotoxicity assessment and the percentage cell survival was determined by using 3-(4,5-dimethylthiazol-2-yl)-5(3-carboxymethoxyphenol)-2-(4-sulfophenyl)-2H-tetrazoli um (MTS) assay on human fetal lung tissue cell (MRC-5). The experimental results show that the CuO doped TiO2nanocomposite particles cause potential cytotoxicity effect in cultured human cells.

Characterization and Cytotoxicity Studies of Mixed Cu-La-Ce Nanocomplexes Prepared by Coprecipitation Approach

2011 ◽  
Vol 110-116 ◽  
pp. 527-533
Author(s):  
Chang Mao Hung
Keyword(s):  
Fetal Lung ◽  
Copper Nitrate ◽  
High Dispersion ◽  
Tissue Cell ◽  
Particle Sizes ◽  
Cell Cytotoxicity ◽  
Cytotoxicity Studies ◽  
Cultured Human Cells ◽  
Human Fetal Lung ◽  
Mts Assay

This work describes the mixed Cu-La-Ce nanocomplexes materials were synthesized by coprecipitation approach with aqueous solutions of copper nitrate, lanthanum nitrate and cerium nitrate. The nanocomplexes materials were characterized by TEM, with a particle size around nanoscale particle sizes (~50 nm) with high dispersion phenomena. Further, cell cytotoxicity and the percentage cell survival was determined by using 3-(4,5-dimethylthiazol-2-yl)-5 (3-carboxymethoxyphenol)-2-(4-sulfophenyl)-2H-tetrazolium (MTS) assay on human fetal lung tissue cell (MRC-5). The experimental results show that the Cu-La-Ce nanocomplexes materials only minor cause cytotoxicity effect in cultured human cells.

scholarly journals Structured Pd/γ-Al2O3 Prepared by Washcoated Deposition on a Ceramic Honeycomb for Compressed Natural Gas Applications

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Małgorzata Adamowska ◽  
Patrick Da Costa
Keyword(s):  
Bet Surface Area ◽  
Incipient Wetness Impregnation ◽  
Impregnation Method ◽  
Sem Images ◽  
Alumina Layer ◽  
Incipient Wetness ◽  
Temperature Programmed ◽  
The One ◽  
Ceramic Honeycomb ◽  
Monolith Catalyst

The preparation of a coating procedure was studied, from the washcoating with γ-alumina to the deposition of palladium by excess solvent or incipient wetness impregnation. The powder and the washcoat layers were studied by different characterisation techniques such as SEM, BET surface area, and XRD. Vibration-resistance and heat-resistance were also evaluated. It was shown that the alumina layer is quite well deposited on the channel walls (SEM images). However, a detachment of the washcoat layer was observed after ultrasound treatment. It was proved that the monolith Pd impregnation method by incipient wetness impregnation is more efficient. The presence of palladium was confirmed using HRTEM, the palladium was present under the Pd (II) oxidation state, and the size of PdO particles varies between 2.5 and 3.1 nm. The catalytic properties of the monolith catalyst were carried out using temperature programmed surface reaction (TPSR). The efficiency of the procedure of the monolith catalyst preparation was confirmed by comparing the activity of the prepared catalyst with the one of a model catalyst.

Application of Acid Modified CuO/Al2O3 Nanostructured Catalysts and its Cytotoxicity Assessment for Enhanced CH4-SCR Performance

2011 ◽  
Vol 695 ◽  
pp. 97-100
Author(s):  
Chang Mao Hung
Keyword(s):  
Fixed Bed ◽  
Reaction System ◽  
Nanostructured Catalysts ◽  
Fetal Lung ◽  
Experimental Results ◽  
Fixed Bed Reactor ◽  
Tissue Cell ◽  
Incipient Wetness Impregnation ◽  
Nanostructured Catalyst ◽  
Alumina Support

The effect of treatment with different inorganic acids (HNO3, CH3COOH, and H3PO4) on the activity of CuO/γ-Al2O3 nanostructured catalysts selective catalytic reduction of NO by hydrocarbons (HC-SCR) using CH4as a reducing agent in a tubular fixed-bed reactor (TFBR) at temperatures from 623-1023 K in the presence of oxygen was studied. A CuO/γ-Al2O3 nanostructured catalyst was prepared by incipient wetness impregnation approach of copper nitrateand γ-alumina support. The catalysts were characterized using AEM and XRD. The experimental results show that the support γ-alumina with a 6 N HNO3solution at the calcinations temperature of 873 K obvious promoting effects on the higher activity due to greater acidity of the transforming NO reaction over a CuO/γ-Al2O3nanostructured catalyst, because the acidic pretreatment provides the acidic sites for the catalyst surface and improved the dispersion of copper species and the reactivity over the catalyst reaction system with NO-CH4-O2. Further, cell cytotoxicity and the percentage cell survival was determined by using MTS assay on human fetal lung tissue cell (MRC-5). The experimental results show that the nanoscale CuO/γ-Al2O3catalyst only minor cause cytotoxicity effect in cultured human cells.

Preparation, Electrochemical Properties and Cytotoxicity Assessment of Nanosized CuO/La2O3/CeO2 Composite for the Decomposition of Gaseous Ammonia

2011 ◽  
Vol 695 ◽  
pp. 53-56
Author(s):  
Chang Mao Hung
Keyword(s):  
Rare Earth ◽  
Composite Materials ◽  
Fixed Bed ◽  
Fetal Lung ◽  
Copper Nitrate ◽  
Fixed Bed Reactor ◽  
Gaseous Ammonia ◽  
Tissue Cell ◽  
Selective Catalytic Oxidation ◽  
Cytotoxicity Assessment

This work considers the CuO/La2O3/CeO2nano-rare earth composite materials were synthesized by coprecipitation method with aqueous solutions of copper nitrate, lanthanum nitrate and cerium nitrate. The performance of the selective catalytic oxidation of ammonia to N2(NH3-SCO) over a CuO/La2O3/CeO2nano-rare earth composite materials in a tubular fixed-bed reactor (TFBR) at temperatures from 423 to 673 K in the presence of oxygen was reported. The catalytic redox behaviors were determined by cyclic voltammetry (CV). Further, cell cytotoxicity and the percentage cell survival were determined by using MTS assay on human fetal lung tissue cell (MRC-5). The experimental results show that the CuO/La2O3/CeO2nanocomposite particles only minor cause cytotoxicity effect in cultured human cells.

Cobalt oxide functionalized nanoporous carbon electrodes and their excellent supercapacitive performance

RSC Advances ◽  
2015 ◽  
Vol 5 (18) ◽  
pp. 13930-13940 ◽  
Author(s):  
Dattatray S. Dhawale ◽  
Gurudas P. Mane ◽  
Stalin Joseph ◽  
Siddulu N. Talapaneni ◽  
Chokkalingam Anand ◽  
...  
Keyword(s):  
Cobalt Oxide ◽  
Nanoporous Carbon ◽  
Carbon Electrodes ◽  
Incipient Wetness Impregnation ◽  
Supercapacitive Performance ◽  
Supercapacitor Application ◽  
Impregnation Technique ◽  
Incipient Wetness ◽  
Coo Nanoparticles

Nanoporous carbon (CMK-3-150) functionalized with different amounts of cobalt oxide (CoO) nanoparticles was synthesized by an incipient wetness impregnation technique for supercapacitor application.

scholarly journals Hydrocracking of Coconut Oil over Ni-Fe/HZSM-5 Catalyst to Produce Hydrocarbon Biofuel

2019 ◽  
Vol 19 (2) ◽  
pp. 319 ◽  
Author(s):  
Muhammad Al-Muttaqii ◽  
Firman Kurniawansyah ◽  
Danawati Hari Prajitno ◽  
Achmad Roesyadi
Keyword(s):  
Surface Area ◽  
Chain Length ◽  
Crystalline Structure ◽  
Reaction Temperature ◽  
Batch Reactor ◽  
Coconut Oil ◽  
Incipient Wetness Impregnation ◽  
Incipient Wetness

This present study was aimed to investigate the hydrocracking of coconut oil using Ni-Fe/HZSM-5 catalyst in a batch reactor at three reaction temperatures (350, 375, and 400 °C). The Ni-Fe/HZSM-5 catalyst was prepared by using incipient wetness impregnation. The Ni-Fe/HZSM-5 catalyst was characterized using XRD, BET, and SEM-EDX. From XRD results, the loading of Ni and Fe did not change the crystalline structure of HZSM-5 catalyst. The surface area of HZSM-5 was 425 m2/g and decreased after the addition of metals (Ni and Fe) into HZSM-5 support. These changes implied that Ni and Fe particles were successfully dispersed on the HZSM-5 surface and incorporated into HZSM-5 pore. The product of hydrocarbon biofuel was analyzed using GC-MS. The GC-MS results of hydrocarbon biofuel showed the highest compounds for n-paraffin and yield for gasoil was 39.24 and 18.4% at a temperature of 400 °C, respectively. The reaction temperature affected the yield and the composition of hydrocarbon biofuel. At this reaction temperature condition, decarboxylation and decarbonylation were favored; lead to the formation of n-alkanes with an odd number of carbon atoms chain length.

Phosphorus Promoted HZSM-5 Zeolites for the Coupling Transformation of Methanol with 1-Butene to Propylene

2020 ◽  
Author(s):  
Xiao-hua Tang ◽  
Rui-qiang Liu ◽  
Hai-feng Tian ◽  
Hui Li ◽  
fei zha ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Space Velocity ◽  
In Situ Synthesis ◽  
Synthetic Methods ◽  
Incipient Wetness Impregnation ◽  
Large Specific Surface Area ◽  
Reaction Conditions ◽  
Coupling Transformation ◽  
Incipient Wetness

Phosphorus promoted HZSM-5 zeolites (P-HZSM-5) were prepared by synthetic methods of incipient wetness impregnation and in-situ synthesis, respectively. It was characterized by the means of XRD, SEM, BET, TG and NH3-TPD. The P-HZSM-5 zeolite prepared by incipient wetness impregnation has a large specific surface area and pore size, and the weak acidity is remarkably increased. The catalytic activity of P-HZSM-5 for the coupling transformation of methanol with 1-butene to propylene was investigated. Under the reaction conditions of temperature at 550 ℃, pressure at 0.4 MPa, space velocity at 1800 mL/(gcath) and mole ratio of CH3OH/C4H8 to 1:1, the conversion of C4H8 can reach to 75.8%, and the selectivity and yield of propylene are 42.2% and 31.9%, respectively.

Decoration of mesoporous carbon electrodes with tin oxide to boost their supercapacitive performance

2020 ◽  
Vol 44 (29) ◽  
pp. 12654-12663
Author(s):  
Hang T. T. Le ◽  
Duc Tung Ngo ◽  
Viet-Anh-Dung Dang ◽  
Thuy T. B. Hoang ◽  
Chan-Jin Park
Keyword(s):  
Tin Oxide ◽  
Mesoporous Carbon ◽  
Carbon Electrodes ◽  
Charge Storage ◽  
Incipient Wetness Impregnation ◽  
Supercapacitive Performance ◽  
Unique Material ◽  
Incipient Wetness

A unique material comprising mesoporous carbon decorated with tin oxide was synthesised by facile incipient wetness impregnation for enhanced charge storage.

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