Yongkang Zhang, Chuanmin Ding, Junwen Wang, Yanming Jia, Yanan Xue, Zhiting Gao, Bo Yu, Bize Gao, Kan Zhang, Ping Liu.Detection of Additives and Chemical Contaminants in Turmeric Powder Using FT-IR Spectroscopy. Schmidt, Moon Kim, Xiuying Tang, Yankun Peng, Kuanglin Chao. Surface for spectral sensors in microbiological analysis. Mid-Infrared Vibrational Spectrum Characterization of the Outer Surface of Candida albicans by Functionally Enhanced Derivative Spectroscopy. Microporous and Mesoporous Materials 2021, 317, 110994. Analysis of the BAS OH band reveals a non-statistical incorporation of Al into the MOR framework. Miroslav Rubeš, Eva Koudelková, Jan Vaculík, Michal Trachta, Roman Bulánek, Ota Bludský.International Journal of Hydrogen Energy 2021, 46 Enhancement on protonation (H+) with incorporation of flexible ethylene carbonate in CMC–PVA–30 wt % NH4NO3 film. Physico-chemical profiling of edible or sweet cassava (Manihot esculenta Crantz) starches from Brazilian germplasm.
Eduardo da Costa Nunes, Virgilio Gavicho Uarrota, Rodolfo Moresco, Marcelo Maraschin.The Journal of Physical Chemistry C 2014, 118 Insights into Brønsted Acid Sites in the Zeolite Mordenite. Lukyanov, Tanya Vazhnova, Nikolay Cherkasov, John L. The Journal of Physical Chemistry C 2021, 125 Spectroscopic Expression of the External Surface Sites of H-ZSM-5. Laureline Treps, Coralie Demaret, Dorothea Wisser, Bogdan Harbuzaru, Alain Méthivier, Emmanuelle Guillon, Denys Viktorovych Benedis, Axel Gomez, Theodorus de Bruin, Mickaël Rivallan, Leonor Catita, Anne Lesage, Céline Chizallet.This article is cited by 13 publications. The latter point is illustrated by FSD of the IR spectrum of hydroxyl groups in a sample of α-alumina. Given the similarities in the IR analysis of different functional groups in solids, we expect that the FSD-IR method will be also instrumental in the research into other porous materials, such as solid oxides and MOFs. On this basis, we conclude that the FSD-IR method allows direct visualization and examination of distributions of distinct BAS in zeolites, thus providing a unique research opportunity, which no other method can provide. We then analyze possible locations of six BAS in the mordenite structure and explain a number of conflicting results in literature. We apply this method to study three acidic mordenite zeolites and show (i) that these zeolites contain six distinct Brønsted acid sites (BAS) as opposed to 2–4 different BAS previously considered in literature and (ii) that the relative amounts of these BAS are different in the three zeolites examined. Our study demonstrates that this limitation could be overcome by using Fourier self-deconvolution of infrared spectra (FSD-IR). However, this technique cannot distinguish between functional groups in different local environments. For many decades, IR and FT-IR spectroscopy has generated valuable information about different functional groups in zeolites, metal–organic frameworks (MOFs), and other porous materials.