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Institution

National Chemical Laboratory

FacilityPune, Maharashtra, India
About: National Chemical Laboratory is a facility organization based out in Pune, Maharashtra, India. It is known for research contribution in the topics: Catalysis & Enantioselective synthesis. The organization has 8891 authors who have published 14837 publications receiving 387600 citations.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the tin oxide powder obtained at different calcination temperatures (773 −1223 K) was characterized using powder X-ray diffraction (XRD), SEM, TEM, TG-DTG and UV spectroscopic techniques.

108 citations

Journal ArticleDOI
TL;DR: In this article, a simple strategy of chemical functionalization is employed for controlling the wettability of multiwalled carbon nanotube films from superhydorphobic (156°) to nearly hydrophilic (40°), which further shows superhydrophilicity with a water contact angle of about 0° within 2 s.
Abstract: A simple strategy of chemical functionalization is employed here for controlling the wettability of multiwalled carbon nanotube films from superhydorphobic (156°) to nearly hydrophilic (40°), which further shows superhydrophilicity with a water contact angle of about 0° within 2 s. The hydrophobic surface (water contact angle 145°) in case of nitric-acid-treated MWCNT bucky paper shows an unusual pinning action even at a tilt angle of 45°, following Wenzel behavior of the surface. The variation in the wetting properties of MWCNT bucky paper using such surface designing strategies provides controlled heterogeneity on the surface with no or minimal effect on surface roughness.

107 citations

Journal ArticleDOI
TL;DR: In this article, the authors focused on newer biocoagulants, bioformulations, and the understanding of coagulant behavior with biocarriers in relation to chemical coagulators.
Abstract: The present study focuses on newer biocoagulants, bioformulations, and the understanding of coagulant behavior with biocoagulants in relation to chemical coagulants. Newer biocoagulants, seeds of Azadirachta indica (AI) and pads of Acanthocereus tetragonus, are discussed along with two known biocoagulants, Moringa oleifera and Cicer arietinum seeds. Dye removal studies were carried out using widely reported Congo red dye to facilitate easy comparison with other conventional coagulants and the effect of various parameters such as initial dye concentration, pH, coagulant dose, etc. are discussed in detail. The use of biocoagulant was found to be highly effective, and up to 99% dye removal was achieved for coagulant doses in the range of 300–1500 mg/L. It was also observed that coagulation is pH sensitive, similar to chemical coagulants. Although the biocoagulant dose is relatively higher than the conventional chemical coagulants, a good value for the sludge volume index, ∼50 mL/g for 1 h and 30 min, respect...

107 citations

Journal ArticleDOI
TL;DR: This feature article aims to describe foldamers with unique structural architectures, exclusively featuring heterogeneous backbones (hetero Foldamers), which have potential applications in biomedical and material science fields.

107 citations

Journal ArticleDOI
TL;DR: In this paper, the authors presented a one-dimensional model to simulate key processes occurring in solid bed of rotary calciner, which is used to convert calcineous raw meal into cement clinkers.
Abstract: Rotary kilns are used to convert calcineous raw meal into cement clinkers. In this paper we present a one-dimensional model to simulate key processes occurring in solid bed of cement kilns. Solid-solid reactions occurring in cement kilns were modelled with a pseudo-homogeneous approximation. Variation of bed height and melt formation in burner zone within the kiln was accounted for. Energy balance (including conductive, convective and radiative heat transfer) was solved based on a quasi-steady state approximation. The mathematical model was first applied to a rotary calciner. The model predictions were verified by comparing them with the published experimental data. The model was then used to simulate performance of three industrial kilns. Numerical experiments were carried out to investigate influence of key operating and design parameters on energy consumption of kilns. The model was also used to explore the possibility of manipulating temperature profile within the kiln to reduce energy consumption in kiln per ton of clinker. Apart from providing a computationally efficient tool to simulate kiln performance, the model and the results discussed here will provide a useful basis for the development of comprehensive three-dimensional models of rotary cement kilns.

107 citations


Authors

Showing all 8913 results

NameH-indexPapersCitations
Ashok Kumar1515654164086
Rajesh Kumar1494439140830
Tak W. Mak14880794871
John T. O'Brien12181963242
Clive Ballard11773661663
Yoshinori Tokura11785870258
John S. Mattick11636764315
Michael Dean10741963335
Ian G. McKeith10746851954
David J. Burn10044639120
Anil Kumar99212464825
Vikas Kumar8985939185
Detlef W. Bahnemann8851748826
Gautam R. Desiraju8845845301
Praveen Kumar88133935718
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20236
202238
2021482
2020454
2019471
2018498