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Balasubramanian Viswanathan

Bio: Balasubramanian Viswanathan is an academic researcher from Indian Institute of Technology Madras. The author has contributed to research in topics: Catalysis & Adsorption. The author has an hindex of 57, co-authored 437 publications receiving 12147 citations. Previous affiliations of Balasubramanian Viswanathan include Hokkaido University & Indian Institutes of Technology.


Papers
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Book ChapterDOI
TL;DR: In this paper, the synthesis and characterization of a mesoporous silicoalumino phosphate are given employing typical structure directing reagent viz. cetyltrimethyl ammonium bromide.
Abstract: The synthesis and characterization of a mesoporous silicoalumino phosphate are given employing typical structure directing reagent viz. cetyltrimethyl ammonium bromide. The 29 Si MAS NMR showed that silicon is found in coordination with 1, 2, 3 and 4 Al ions through oxygen bridges. The sorption characteristics of this new mesoporous SAPO material are also presented.
Journal Article
TL;DR: Raman spec trulll shows charac teri stic bands at 1384 cm, l (D-b,\Ild ) and 1603 cm' l (G-band).
Abstract: Th c synthes is or we ll -a ligned ca rhon nanotuhcs by pyro l ys is o r polyparaphenylene on alumina membrane tcmplale is desc ri bed here. T he prepared nan otubes have been characterized by elec tron microscopic analyse s, Raman spec trosco py and cyc lic voltammetry. Sca nning elec tron micro graphs and tran smi ss ion electron micrograp hs reveal th e hollow stru cture and ve rti cal ly al igned rea tures or th e nanotubes. T he surrace morphology o r the nanotubes has bee n stu died by atomic rorce mi cro scopy. Raman spec trulll shows charac teri stic bands at 1384 cm, l (D-b,\Ild ) and 1603 cm' l (G-band) indicat ing \\'e ll­ gra phitiLed nan otu bes. The elec trochemica l behav ior of th e sy l1lh es ized carbon nanotube rilm coated wi th glassy ca rbon elec l rod c sho ws fa st elec tro n Iran sfcr and higher currel1l re spon se . The well-a l igned ca rbon nanotube arrays can ha ve pot enti al application s in lithium-ion ballery an d olher fields. x
Journal ArticleDOI
TL;DR: Ferric molybdate is less selective in the partial oxidation of propylene than bismuth and its catalytic behavior is similar to that observed on other transition metal molybdates as discussed by the authors.
Abstract: Ferric molybdate is less selective in the partial oxidation of propylene than bismuth molybdate. Its catalytic behavior is similar to that observed on other transition metal molybdates. The intrafacial nature of the reaction is established through kinetic and adsorption measurements.
Journal ArticleDOI
TL;DR: In this paper, the Atterberg limits and the DTA curves were determined for homoionised and commercial bentonites, and it was shown that DTA can be used as a method for differentiation between clays containing mono and divalent cations.
Abstract: Homoionised bentonites were prepared from commercial bentonites with hydrochloric acid. The Atterberg limits and the DTA curves were determined for the homoionised and commercial bentonites. This study shows that DTA can be used as a method for differentiation between clays containing mono- and divalent cations.
Journal ArticleDOI
TL;DR: In this paper, the interactions of carbon monoxide and hydrogen during their individual and mixed adsorption on Fe(lOO) surface has been studied through Extended Huckel Molecular Orbital (EHMO) calculations.

Cited by
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Journal ArticleDOI
TL;DR: Two important future research directions are indicated and summarized, based on results published in the literature: the development of composite and nanostructured ES materials to overcome the major challenge posed by the low energy density.
Abstract: In this critical review, metal oxides-based materials for electrochemical supercapacitor (ES) electrodes are reviewed in detail together with a brief review of carbon materials and conducting polymers. Their advantages, disadvantages, and performance in ES electrodes are discussed through extensive analysis of the literature, and new trends in material development are also reviewed. Two important future research directions are indicated and summarized, based on results published in the literature: the development of composite and nanostructured ES materials to overcome the major challenge posed by the low energy density of ES (476 references).

7,642 citations

Journal ArticleDOI
TL;DR: Approaches to Modifying the Electronic Band Structure for Visible-Light Harvesting and its Applications d0 Metal Oxide Photocatalysts 6518 4.4.1.
Abstract: 2.3. Evaluation of Photocatalytic Water Splitting 6507 2.3.1. Photocatalytic Activity 6507 2.3.2. Photocatalytic Stability 6507 3. UV-Active Photocatalysts for Water Splitting 6507 3.1. d0 Metal Oxide Photocatalyts 6507 3.1.1. Ti-, Zr-Based Oxides 6507 3.1.2. Nb-, Ta-Based Oxides 6514 3.1.3. W-, Mo-Based Oxides 6517 3.1.4. Other d0 Metal Oxides 6518 3.2. d10 Metal Oxide Photocatalyts 6518 3.3. f0 Metal Oxide Photocatalysts 6518 3.4. Nonoxide Photocatalysts 6518 4. Approaches to Modifying the Electronic Band Structure for Visible-Light Harvesting 6519

6,332 citations

Journal ArticleDOI
TL;DR: In this paper, photo-induced superhydrophilicity was used on the surface of a wide-band gap semiconductor like titanium dioxide (TiO 2 ) for photocatalytic activity towards environmentally hazardous compounds.

4,241 citations