Ultrasound assisted shape regulation of CuO nanorods in ionic liquids and their use as energy efficient lubricant additives

2013 ◽  
Vol 1 (18) ◽  
pp. 5612 ◽  
Author(s):  
Rashi Gusain ◽  
Om P. Khatri
Keyword(s):  
Ionic Liquids ◽  
Energy Efficient ◽  
Lubricant Additives ◽  
Ultrasound Assisted ◽  
Cuo Nanorods

Lubrication capabilities of amino acid based ionic liquids as green bio-lubricant additives

2017 ◽  
Vol 244 ◽  
pp. 219-225 ◽  
Author(s):  
Ponnekanti Nagendramma ◽  
Praveen K. Khatri ◽  
Gananath D. Thakre ◽  
Suman L. Jain
Keyword(s):  
Ionic Liquids ◽  
Amino Acid ◽  
Lubricant Additives

scholarly journals Agro-industrial waste as a source of bioactive compounds: ultrasound-assisted extraction from blueberry (Vaccinium myrtillus) and raspberry (Rubus idaeus) pomace

2021 ◽  
Vol 43 ◽  
pp. e55564
Author(s):  
Suelen Siqueira dos Santos ◽  
Carolina Moser Paraíso ◽  
Letícia Misturini Rodrigues ◽  
Grasiele Scaramal Madrona
Keyword(s):  
Bioactive Compounds ◽  
Energy Efficient ◽  
Extraction Method ◽  
Rubus Idaeus ◽  
Total Phenolic ◽  
Ultrasound Assisted Extraction ◽  
Assisted Extraction ◽  
Ultrasound Assisted ◽  
Conventional Extraction ◽  
Gallic Acid Equivalent

Blueberry and raspberry pomace are a rich source of bioactive compounds that have not been commercially utilized yet, and ultrasound-assisted technology can efficiently extract these compounds. Also, the use of water as a solvent added to the ultrasound-assisted technology improves this eco-friendly process. Therefore, an aqueous eco-friendly extraction, including extraction time and ultrasound presence or absence (conventional extraction) was performed in order to extract bioactive compounds from blueberry and raspberry pomace. Response parameters included levels of anthocyanins, phenolic compounds, and flavonoids, and antioxidant activity determined by DPPH, ABTS, and FRAP methods. Analysis of variance results indicated that ultrasound-assisted extraction for 45 min. was feasible to extract the bioactive compounds. The antioxidant content of the extract obtained by the ultrasound-assisted process was 1.4 times higher on average and the total phenolic concentration was 1.6 times higher (for blueberry 5.02 and for raspberry 2.53 mg gallic acid equivalent/g) compared with those obtained by the conventional process. Thus, the ultrasound-assisted extraction method can be a profitable alternative to extract bioactive compounds from blueberry and raspberry pomace, as it is energy efficient, requires fewer chemicals, and produces less effluent. This eco-friendly technology is therefore viable for food, nutraceutical, and cosmetic industries, and also for reducing food waste.

scholarly journals Effect of Ionicity of Three Protic Ionic Liquids as Neat Lubricants and Lubricant Additives to a Biolubricant

Coatings ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 713 ◽  
Author(s):  
Hong Guo ◽  
Angela Rina Adukure ◽  
Patricia Iglesias
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Friction And Wear ◽  
Cost Effective ◽  
Lubricant Additive ◽  
Lubricant Additives ◽  
Environmental Damage ◽  
Protic Ionic Liquids ◽  
Protic Ionic Liquid ◽  
Wear Process

Friction and wear of sliding surfaces are responsible for important energy losses and negative environmental effects. The use of environmentally friendly and cost-effective protic ionic liquids as neat lubricants and lubricant additives has the potential to increase the efficiency and durability of mechanical components without increasing the environmental damage. In this work, three halogen-free protic ionic liquids with increasing extent of ionicity, 2-hydroxyethylammonium 2-ethylhexanoate, 2-hydroxymethylammonium 2-ethylhexancate, and 2-hydroxydimethylammonium 2-ethylhexanoate, were synthesized and studied as neat lubricants and additives to a biodegradable oil in a steel–steel contact. The results show that the use of any protic ionic liquid as a neat lubricant or lubricant additive reduced friction and wear with respect to the biodegradable oil. The ionic liquid with the lowest ionicity reached the highest wear reduction. The one possessing the highest ionicity presented the poorest friction and wear behaviors as a neat lubricant, probably due to the more ionic nature of this liquid, which promoted tribocorrosion reactions on the steel surface. This ionic liquid performed better as an additive, showing that a small addition of this liquid in a biodegradable oil is enough to form protective layers on steel surfaces. However, it is not enough to accelerate the wear process with detrimental tribocorrosion reactions.

Ultrasound-assisted synthesis of mesoporous β-Ni(OH)2 and NiO nano-sheets using ionic liquids

2012 ◽  
Vol 22 (35) ◽  
pp. 18252 ◽  
Author(s):  
Tarek Alammar ◽  
Osama Shekhah ◽  
Jonas Wohlgemuth ◽  
Anja-Verena Mudring
Keyword(s):  
Ionic Liquids ◽  
Ultrasound Assisted

scholarly journals A general ultrasound-assisted access to room-temperature ionic liquids

2006 ◽  
Vol 13 (2) ◽  
pp. 189-193 ◽  
Author(s):  
Jean-Marc Lévêque ◽  
Simon Desset ◽  
Joel Suptil ◽  
Claude Fachinger ◽  
Micheline Draye ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Room Temperature ◽  
Room Temperature Ionic Liquids ◽  
Ultrasound Assisted

Energy efficient Pfitzinger reaction: a novel strategy using a surfactant catalyst

2017 ◽  
Vol 41 (21) ◽  
pp. 12380-12383 ◽  
Author(s):  
Priyanka A. More ◽  
Ganapati S. Shankarling
Keyword(s):  
Carboxylic Acid ◽  
Energy Efficient ◽  
Synthetic Route ◽  
Pfitzinger Reaction ◽  
Ultrasound Assisted ◽  
Novel Strategy

A novel ultrasound assisted synthetic route catalysed by a surfactant for the synthesis of quinolone-4-carboxylic acid.

Preparation of CuO Nanorods in Ionic Liquids

2009 ◽  
Author(s):  
Chongyu Liu ◽  
Quanshui Chen ◽  
Jugong Zheng ◽  
Ting Yang
Keyword(s):  
Ionic Liquids ◽  
Cuo Nanorods
Sign in / Sign up

Export Citation Format

Share Document