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Recent Advances in the Characterization of Gaseous and Liquid Fuels by Vibrational Spectroscopy

Kiefer, Johannes - In: Energies 8 (2015) 4, pp. 3165-3197

Raman spectroscopy in the context of fuel characterization. The focus of the paper lies on gaseous and liquid fuels, which …

Persistent link: https://www.econbiz.de/10011262970

Comprehensive physicochemical characterization of Algerian coal powders for the engineering of advanced sustainable materials

Ferfar, Meriem; Sakher, Elfahem; Bouras, Amina; … - In: Technology audit and production reserves 1 (2024) 3/75, pp. 29-36

Persistent link: https://www.econbiz.de/10014507327

STRUCTURAL AND MORPHOLOGY OF NANOPOWDERS COPPER-STABILIZED ZIRCONIA

VAHIDSHAD, Y.; ABDIZADEH, H.; BAHARVANDI, H. R.; … - In: Surface Review and Letters (SRL) 16 (2009) 04, pp. 569-577

The structural and morphology of copper-stabilized zirconia samples prepared by sol–gel techniques in different calcination time and temperature are reported. This research work has been proposed and verified that the calcination temperature and time strongly influenced the morphology as well...

Persistent link: https://www.econbiz.de/10008481948

RAMAN SCATTERING STUDIES ON THE STRUCTURAL PROPERTIES OF PULSED LASER DEPOSITED AMORPHOUS CARBON NITRIDE THIN FILMS

RUSOP, M.; SOGA, T.; JIMBO, T. - In: Surface Review and Letters (SRL) 12 (2005) 02, pp. 173-184

Raman scattering analysis revealed that the structure of carbon (C) films prepared by pulsed laser deposition at room … of 900 to 2300 cm-1 in which several peaks always appear in a-CNx films. The spectra were deconvoluted into Raman D and G … peaks and the structural parameters were determined. The upward shifts of Raman G peak towards 1592 cm-1 show evidence of a …

Persistent link: https://www.econbiz.de/10005047123

THE RAMAN SPECTRA CHARACTERISTICS OF a-CNx FILMS GROWN ON QUARTZ SUBSTRATES BY NEWLY DEVELOPED SURFACE WAVE MICROWAVE PECVD

RUSOP, M.; ABDULLAH, S.; ADHIKARI, S.; OMER, A. M. M.; … - In: Surface Review and Letters (SRL) 13 (2006) 05, pp. 577-583

structural modifications were studied by Visible-Raman spectroscopy through the evolution of D and G peaks. The spectral … evolution observed on heat-treated a-CNx shows progressive formation of crystallites. Raman spectra have revealed the amorphous …

Persistent link: https://www.econbiz.de/10005050577

An in situ optical gas phase analysis approach for TGA: Its assessment and application

Haselsteiner, T.; Erbel, C.; Kunze, C.; Spliethoff, H. - In: Applied Energy 88 (2011) 12, pp. 5200-5207

Thermogravimetric analyzers (TGA) are widely applied for studies of coal conversion as a function of process parameters. However, weight change of fuel samples as a function of temperature is not always sufficient for detailed identification of volatilized or reacted species. Coupling TGA with...

Persistent link: https://www.econbiz.de/10010571923

CO2 (carbon dioxide) separation from CO2–H2 (hydrogen) gas mixtures by gas hydrates in TBAB (tetra-n-butyl ammonium bromide) solution and Raman spectroscopic analysis

Xu, Chun-Gang; Zhang, Shao-Hong; Cai, Jing; Chen, Zhao-Yang - In: Energy 59 (2013) C, pp. 719-725

2 concentrations is investigated in 0.29 mol% TBAB (tetra-n-butyl ammonium bromide) solution. Raman spectroscopic … separation fraction) decreases with the decrease of CO2. Raman peaks for CO2 gas shift to higher frequency side of 6–10 cm−1 as … the CO2 concentration turns from 40.0% to the range of 10.0–18.0%. Meanwhile, no Raman spectral signal is detected for H …

Persistent link: https://www.econbiz.de/10011055299

Biogenicity and Syngeneity of Organic Matter in Ancient Sedimentary Rocks: Recent Advances in the Search for Evidence of Past Life

Oehler, Dorothy Z.; Cady, Sherry L. - In: Challenges 5 (2014) 2, pp. 260-283

allow analysis of micrometer-to-sub-micrometer-scale organic residues within their host rocks and include Raman and …

Persistent link: https://www.econbiz.de/10011030464