Growth and characterization of anodic oxides on Si(100) formed in 0.1 M hydrochloric acid

1996 ◽  
Vol 79 (11) ◽  
pp. 8761-8769 ◽  
Author(s):  
J. A. Bardwell ◽  
N. Draper ◽  
P. Schmuki
Keyword(s):  
Hydrochloric Acid

Characterization of Liquid-Solid Reactions. Hydrochloric Acid-Calcium Carbonate Reaction

1970 ◽  
Vol 9 (4) ◽  
pp. 589-596 ◽  
Author(s):  
B. B. Williams ◽  
J. L. Gidley ◽  
J. A. Guin ◽  
R. S. Schechter
Keyword(s):  
Calcium Carbonate ◽  
Hydrochloric Acid ◽  
Carbonate Reaction

Combustion Synthesis and Infrared Characterization of TiB2

2014 ◽  
Vol 602-603 ◽  
pp. 142-145
Author(s):  
Su Li ◽  
Jun Shou Li ◽  
Fang Zhao ◽  
Ming Yuan Wang ◽  
Xiao Juan Wu
Keyword(s):  
Hydrochloric Acid ◽  
Wave Band ◽  
Qualitative And Quantitative Analysis ◽  
Qualitative And Quantitative ◽  
High Temperature Synthesis ◽  
Hexagonal Shape ◽  
Before And After ◽  
Infrared Spectral ◽  
Middle Infrared

On the basis of magnesiothermy, with Mg powder, TiO2 powder and B2O3 powder as mixed reactants, relatively pure TiB2 powder was prepared by self-propagating high temperature synthesis (SHS) after leached in diluted hydrochloric acid with the suitable concentration. The product after leached was examined by XRD for qualitative and quantitative analysis, SEM for morphology analysis and infrared spectroscopy for transmittance analysis. It was found that diluted hydrochloric acid could decrease most of the impurities, and the proportion of TiB2 phase in the product is more than 99%, which was hexagonal shape crystal with the grain size of 200-300 nm. Compare with the infrared spectrogram of the middle infrared spectral region of the product of before and after acid pickling, it was found that the transmittance of TiB2 is extremely low in the range of 2000-4000 cm-1, which can be excellent infrared absorption material in the corresponding wave band.

STRUCTURAL CHARACTERIZATION OF BI-NUCLEAR COBALT(III) AXIAL-METHYL ALCOHOL-HYDROCHLORIC ACID TETRAPHENYL-PORPHYRIN COMPLEX

1999 ◽  
Vol 48 (3) ◽  
pp. 191-205 ◽  
Author(s):  
Khaled Mohamed Elewa Hashem ◽  
Hamdi Ahmed Hassan ◽  
Hany Mohamed Abdel Dayem ◽  
Salah Abdu Hassan
Keyword(s):  
Hydrochloric Acid ◽  
Methyl Alcohol ◽  
Structural Characterization ◽  
Porphyrin Complex ◽  
Tetraphenyl Porphyrin

Characterization of Non-Native Heme Coordination Structures Emerging upon Guanidine Hydrochloric Acid-Induced Unfolding ofPseudomonas aeruginosaFerricytochromec551

2005 ◽  
Vol 78 (11) ◽  
pp. 2019-2025 ◽  
Author(s):  
Hulin Tai ◽  
Shigenori Nagatomo ◽  
Hajime Mita ◽  
Yoshihiro Sambongi ◽  
Yasuhiko Yamamoto
Keyword(s):  
Hydrochloric Acid

Pretreatment of anaerobic digester samples by hydrochloric acid for solution-state 1H and 13C NMR spectroscopic characterization of organic matter

Chemosphere ◽  
2018 ◽  
Vol 199 ◽  
pp. 201-209 ◽  
Author(s):  
Sepehr Shakeri Yekta ◽  
Mattias Hedenström ◽  
Jan Eric Stehr ◽  
Mårten Dario ◽  
Norbert Hertkorn ◽  
...  
Keyword(s):  
Organic Matter ◽  
Hydrochloric Acid ◽  
13C Nmr ◽  
Spectroscopic Characterization ◽  
Anaerobic Digester ◽  
1H And 13C Nmr ◽  
Solution State

scholarly journals Characterization of FeOOH Nanoparticles and Amorphous Silica Matrix in an FeOOH-SiO2Nanocomposite

2008 ◽  
Vol 2008 ◽  
pp. 1-6 ◽  
Author(s):  
Guido Ennas ◽  
Maria F. Casula ◽  
Sergio Marras ◽  
Gabriele Navarra ◽  
Alessandra Scano ◽  
...  
Keyword(s):  
Hydrochloric Acid ◽  
Amorphous Silica ◽  
Diffraction Data ◽  
Silica Matrix ◽  
X Ray Diffraction ◽  
X Ray ◽  
The Matrix ◽  
Curve Method ◽  
Hydrolysis Of

A nanocomposite with an FeOOH/SiO2ratio equal to 17.7 wt% and the pertinent matrix, obtained by etching away the nanoparticles through reaction with hydrochloric acid, were investigated by XRD, TGA-DTA, heliostereopicnometry, BET, and TEM techniques. The study shows the presence in the nanocomposite of ferrihydrite nanoparticles phase with average dimensions around 4 nm. The FeOOH nanoparticles structure was analyzed by synchrotron X-ray diffraction data using the distribution difference curve method. The porous structure of the matrix resulting by etching away the nanoparticles differs significantly from that of a pureSiO2sample obtained by hydrolysis of TEOS under the same operative conditions followed in the nanocomposite preparation.

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