Ultraviolet Raman spectra: The reasonable method of evaluating coal pyrolysis graphitization

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

New method for the microscopic, nondestructive acquisition of ultraviolet resonance Raman spectra from plant cell walls.

Raman spectroscopy has long been used for the chemical analysis of organic matter, including natural products, using excitation wavelengths in the visible, infrared, or ultraviolet portions of the spectrum. The use of ultraviolet resonance Raman spectroscopy (UVRR) to study bulk samples of plant tissue has typically been carried out by rotating homogeneous macro-samples beneath the laser beam i...

متن کامل

Raman spectra of normal and ultraviolet-induced cataractous rabbit lens.

The Raman spectra of a normal rabbit lens have been recorded over the range of 0 to 4000 cm-1. Spectral results indicate that protein conformation is predominantly beta-pleated sheet. Polarization measurements and assignments for most of the bands have been made; the spectral region for water indicates extensive hydrogen bonding. An N2 laser operating at 337 nm was used to produce cataracts in ...

متن کامل

FT-Raman Spectra of Saffron (Crocus Stivus L.); A Possible Method for Standardization of Saffron

FT-Raman Spectra of Saffron (crocus sativus L.) with a partial assignment is reported. Based on the Raman data, it is concluded that main pigments in saffron are crocins and crocetin. It is proposed that the quickly attainable FT-Raman spectrum of solid saffron, may be used as a means of saffron standardization.

متن کامل

Infrared and Raman Spectra of Intractable Carbonaceous Substances__reassignments in Coal Spectra

Inf rared and Raman i n v e s t i g a t i o n s of i n t r a c t a b l e carbonaceous materials such as carbon blacks, coal chars , a c t i v a t e d carbons, and graphi te , have not been poss i b l e i n the p a s t . F r i e d e l and Hofer have succeeded i n o b t a i n i n g a n i n f r a r e d transmission spec rum of one of the most d i f f i c u l t o f these , a coal-based a c t i v a ...

متن کامل

Progress in Coal Pyrolysis Research

The factors considered are summarized in Table 1. The problem of answering the questions is that multiple chemical reactions occur whose results depend on how the reactants are bound in the coal macromolecular network. Species-selective transport of the reactants and products further complicate the interpretations. In what follows, we have tried to focus on topics where answers are needed or wh...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: AIP Advances

سال: 2020

ISSN: 2158-3226

DOI: 10.1063/5.0018691