The changes in the partial charges on oxygens in the various heteropoly salts as a result of the acidity differences have been exploited for probing the oxygen 1s and W 4f lines. The gradation of the acidity thus obtained is compared to that of the conventional method. © 1989 J.C. Baltzer A.G. Scientific Publishing Company.

Balasubramanian Viswanathan

Thirukkallam Kanthadai Varadarajan

IIT Madras is a public technical and research university located in Chennai, Tamil Nadu. Founded in 1959, it is recognised as an Institute of National Importance.

IIT Madras has been ranked as the top engineering institute in India for four years in a row by the National Institutional Ranking Framework of the MHRD

It currently offers undergraduate, postgraduate and research degrees across 16 disciplines in Engineering, Sciences, Humanities and Management. About 596 faculty belonging to science and engineering departments and centres of the Institute are engaged in teaching, research and industrial consultancy.

IIT Madras

Acidity of heteropoly compounds from XPS measurements

Catalysis Letters

Alkylation of toluene was carried out on microporous salts of phosphotungstic acid. Among the systems studied, M2.5H0.5PW12O40 showed maximum catalytic activity. p-Xylene selectivity was evaluated as a function of x. A linear correlation was observed between para-selectivity and number of strong acid sites with strength of H0≤ -5.6. © Akadémiai Kiadó. All rights reserved.

Reaction Kinetics and Catalysis Letters

Alkylation of toluene with methanol on microporous MxH3-xPW12O40 [M = K+, Cs+, NH4+ and Tl+]

Journal of Catalysis

Acidity of heteropoly compounds

Catalysis by Acids and Bases Studies in Surface Science and Catalysis

Heteropoly Compounds: Solid Acids With Guarded Protons

Catalytic Conversions of Synthesis Gas and Alcohols to Chemicals

Conversion of Methanol to Hydrocarbons on Heteropoly Compounds

Methanol conversion over metal salts of 12-tungstophosphoric acid

Journal	Catalysis Letters
Publisher	Baltzer Science Publishers, Baarn/Kluwer Academic Publishers
ISSN	1011372X
Open Access	No