@article { ISI:000255086600041, title = {Highly active nanostructured Co3O4 catalyst with tunable selectivity for liquid phase air oxidation of p-cresol}, journal = {Chemistry Letters}, volume = {37}, number = {3}, year = {2008}, month = {MAR}, pages = {310-311}, publisher = {CHEMICAL SOC JAPAN}, type = {Article}, address = {1-5 KANDA-SURUGADAI CHIYODA-KU, TOKYO, 101-8307, JAPAN}, abstract = {

This is a first report of highly efficient heterogeneous nanostructured Co3O4 catalyst (6-8 nm) having high surface area (95 m(2)/g) developed for selective liquid phase air oxidation of p-cresol under atmospheric pressure conditions.

}, issn = {0366-7022}, doi = {10.1246/cl.2008.310}, author = {Kshirsagar, Vikas S. and Vijayanand, Subramanian and Potdar, Hari S. and Joy, Pattayil Alias and Patil, Kashinath R. and Rode, Chandrashekhar V.} } @article { ISI:000275090400021, title = {Cu:Al Nano catalyst for selective hydrogenolysis of glycerol to 1,2-propanediol}, journal = {Catalysis Letters}, volume = {135}, number = {1-2}, year = {2010}, month = {MAR}, pages = {141-147}, publisher = {SPRINGER}, address = {233 SPRING ST, NEW YORK, NY 10013 USA}, abstract = {

Non-chromium Cu:Al nano catalyst prepared by simultaneous co-precipitation and digestion method without any template or stabilizer, showed three times higher activity than the bulk Cu-Cr catalyst for hydrogenolysis of glycerol in both isopropanol and water solvents, with the selectivity to 1,2-Propanediol (1,2-PDO) as high as 91\% at 493 K and H(2) pressure of 7 MPa in 5 h. XRD pattern showed the presence of Cu(+) species in the activated Cu: Al nano catalyst. Although Cu(+) is catalytically inactive in glycerol hydrogenolysis reaction, the presence of Cu(+) helps to stabilize the particle size in a narrow range of 7-11 nm by inhibiting the sintering of copper particles under reaction conditions.

}, keywords = {1, 2-Propanediol, Cu:Al nano catalyst, Glycerol, Selective hydrogenolysis}, issn = {1011-372X}, doi = {10.1007/s10562-010-0276-5}, author = {Mane, Rasika B. and Hengne, Amol M. and Ghalwadkar, Ajay A. and Vijayanand, Subramanian and Mohite, Pravin H. and Potdar, Hari S. and Rode, Chandrashekhar V.} } @article { ISI:000288189100018, title = {Nanostructured spinet ZnCo2O4 for the detection of LPG}, journal = {Sensors and Actuators B-Chemical}, volume = {152}, number = {1}, year = {2011}, month = {FEB}, pages = {121-129}, publisher = {ELSEVIER SCIENCE SA}, address = {PO BOX 564, 1001 LAUSANNE, SWITZERLAND}, abstract = {

Nanostrucutred spinel ZnCo2O4 (similar to 26-30 nm) was synthesized by calcining the mixed precursor (consisting of cobalt hydroxyl carbonate and zinc hydroxyl carbonate) in air at 600 degrees C for 5 h. The mixed precursor was prepared through a low cost and simple co-precipitation/digestion method. The transformation of the mixed precursor into nanostructured spinel ZnCO2O4 upon calcinations was confirmed by X-ray diffraction (XRD) measurement, thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS) and high resolution transmission electron microscopy (HRTEM). To demonstrate the potential applicability of ZnCo2O4 spinel in the fabrication of gas sensors, its LPG sensing characteristics were systematically investigated. The ZnCo2O4 spinel exhibited outstanding gas sensing characteristics such as, higher gas response (similar to 72-50 ppm LPG gas at 350 degrees C), response time (similar to 85-90 s), recovery time (similar to 75-80 s), excellent repeatability, good selectivity and relatively lower operating temperature (similar to 350 degrees C). The experimental results demonstrated that the nanostructured spinel ZnCo2O4 is a very promising material for the fabrication of LPG sensors with good sensing characteristics. Plausible LPG sensing mechanism is also discussed. (c) 2010 Elsevier B.V. All rights reserved.

}, keywords = {HRTEM, LPG sensor, Nanostructured ZnCo2O4, Semiconductor gas sensors, XPS}, issn = {0925-4005}, doi = {10.1016/j.snb.2010.09.001}, author = {Vijayanand, Subramanian and Joy, Pattayil Alias and Potdar, Hari S. and Patil, Dewyani and Patil, Pradip} }