B. Viswanathan

Research Field

The environmentally benign route of the organic free process was evolved in precipitating hydrated titania from titanium oxysulphate solution at 90 °C, using crystal nuclei with the addition of ammonia. The synthesized hydrated titania was found to be mesoporous and reactive, with a BET surface area of 277 m2/g. The hydrated titania on calcination in air at 500 °C for 2 h produced anatase mesoporous titania with a surface area of 100 m2/g. The as-synthesized and calcined mesoporous titania materials were characterized by X-ray diffraction, scanning electron microscopy−energy dispersive X-ray spectrometry, ultraviolet−visible/diffuse reflectance spectroscopy, inductively coupled plasma mass spectrometry, thermogravimetry differential thermal analysis, diffuse reflectance infrared Fourier transform spectrometry, and nitrogen adsorption−desorption measurements. The incorporation of phosphorus in the titania framework was found to inhibit crystallization and particle growth and was found to enhance thermal stability due to the formation of titanyl phosphate. The phosphate-modified hydrated titania exhibited mesopores with a high surface area (172 m2/g) after calcining at 500 °C. The esterification reaction performed on P-TiO2 samples showed the significance of an optimum quantity of anatase phase and phosphate content for catalytic activity.

Specific surface area

10.1021/jp902468v

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Citations (30)

Supercapacitors: prospects and future direction

Elsevier eBooks (2020)

M. Aulice Scibioh B. Viswanathan

10.1016/b978-0-12-819858-2.00006-8

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Citations (3)

Positron Studies of Helium in Ni, Ni-Ti and Ti-Stabilised Steel

NATO ASI series. Series B : Physics (1991)

B. Viswanathan G. Amarendra

Liquid bubble

10.1007/978-1-4899-3680-6_17

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Citations (6)

X-ray photoelectron spectroscopic investigations of the activation of FeTi for hydrogen uptake

International Journal of Hydrogen Energy (1987)

Parasuraman Selvam B. Viswanathan C. S. Swamy Vijay Srinivasan

Suboxide

FETI

Metastability

Chemical state

10.1016/0360-3199(87)90028-0

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Citations (15)

Surface properties and their consequences on the hydrogen sorption characteristics of certain materials

Journal of the Less Common Metals (1990)

Parasuraman Selvam B. Viswanathan C. S. Swamy Vijay Srinivasan

Auger electron spectroscopy

Reactivity

10.1016/0022-5088(90)90088-2

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Citations (25)

Highly fluorescent carbon dots from Pseudo-stem of banana plant: Applications as nanosensor and bio-imaging agents

Sensors and Actuators B Chemical (2017)

S. Anbu Anjugam Vandarkuzhali Velu Jeyalakshmi Gandhi Sivaraman Subramanian Singaravadivel K. R. Krishnamurthy

Biocompatibility

Quantum yield

Nanosensor

Carbon fibers

10.1016/j.snb.2017.06.088

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Citations (200)

Boron-Induced Cationic Vacancy on Copper Cobalt Oxide toward Formate Selectivity: New Insights into Methanol Oxidation Reaction

ACS Applied Energy Materials (2022)

Naveen Kumar T. R Shanmugasundaram Kamalakannan Muthuramalingam Prakash B. Viswanathan Bernaurdshaw Neppolian

In noble metal-based fuel cells, adsorbed carbon monoxide plays a vital role in hindering their efficiency. To alleviate this problem, constructing non-noble metals, particularly selective toward formate formation, will be an ideal solution. Further, to improve the electrochemical properties, we deliberately introduced point defects, namely, cationic vacancies. Herein, we have chosen boron as a dopant that introduces the cationic vacancy in copper cobalt oxide (B/CuCo2O4) and improves the methanol absorption capability. Our synthesized B/CuCo2O4 electrocatalyst showed 91 mA cm–2 (∼4-fold) higher current density than the pristine electrocatalyst. Most importantly, unlike noble metals, our synthesized electrocatalyst was selective toward formate formation and obtained a faradic efficiency of 43% as demonstrated by NMR, and the reaction pathway was predicted by density calculation theory.

Cationic polymerization

Cobalt oxide

10.1021/acsaem.1c03643

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Citations (15)

Catalytic properties of BaPb 1-x Bi x O 3 perovskite oxide for partial oxidation of benzyl alcohol

INDIAN JOURNAL OF CHEMISTRY- SECTION A (1999)

R. Radhakrishnan Sumathi Kathryn C. Johnson B. Viswanathan T.K. Varadarajan

Benzyl alcohol

Partial oxidation

Source

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