scholarly journals A solvent-free porous liquid comprising hollow nanorod–polymer surfactant conjugates

2019 ◽  
Vol 1 (10) ◽  
pp. 4067-4075
Author(s):  
Raj Kumar ◽  
Prabhu Dhasaiyan ◽  
Parinamipura M. Naveenkumar ◽  
Kamendra P. Sharma
Keyword(s):  
Solvent Free ◽  
Hollow Silica ◽  
Polymer Surfactant ◽  
Silica Nanorods

A solvent-free porous liquid comprising polymer-surfactant modified hollow silica nanorods shows significant CO2 adsorption at 0 °C.

scholarly journals Novel Multifunctional Porous Liquid Composite for Recyclable Sequestration, Storage and In-situ Catalytic Conversion of Carbon Dioxide

2020 ◽  
Author(s):  
Archita Bhattacharjee ◽  
Raj Kumar ◽  
KAMENDRA SHARMA
Keyword(s):  
Carbon Dioxide ◽  
Light And Electron Microscopy ◽  
Enzymatic Reaction ◽  
Catalytic Conversion ◽  
Porous Solids ◽  
X Ray Diffraction ◽  
Hollow Silica ◽  
Polymer Surfactant ◽  
Silica Nanorods

<div><b>Novel Multifunctional Porous Liquid Composite for Recyclable Sequestration, Storage and In-situ Catalytic Conversion of Carbon Dioxide</b> <br></div><div><br></div><div>Archita Bhattacharjee, Raj Kumar and Prof. K. P. Sharma* Department of Chemistry, IIT Bombay, Powai, India <br></div><div>* E-mail: [email protected] <br></div><div><br></div><div>Keywords: Porous liquid composite, mesoporous liquid, hollow silica nanorods, CO<sub>2</sub> capture, CO<sub>2</sub> catalytic conversion<br></div><div><br></div><div>Abstract: Permanent pores combined with fluidity renders flow processability to porous liquids otherwise not seen in porous solids. Although, sequestration of different gases has recently been shown in porous liquids, there is still adearth of studies for deploying in-situ chemical reactionsto convert adsorbed gases into utility chemicals in this phase. Here, a facile method for the design and development of a new class of solvent-less porous liquid composite which, as shown for the first time, can catalyze the conversion of adsorbed gaseous molecules into industrially relevant product, is shown. The recyclable porous liquid composite comprising polymer-surfactant modified hollow silica nanorods and carbonic anhydrase enzyme not onlysequesters (5.5 ccg<sup>-1</sup> at 273 K and 1 atm) and stores CO<sub>2</sub>,but is also capable of driving an in-situ enzymatic reaction for hydration of CO<sub>2</sub> to HCO<sub>3</sub><sup>-</sup> ion, subsequently converting it CaCO<sub>3</sub> due to reaction with pre-dissolved Ca<sup>2+</sup>. Light and electron microscopy combined with x-ray diffraction reveals the nucleation and growth of calcite and aragonite crystals. Moreover, the liquid-like property of the porous composite material can be harnessed by executing the same reaction via diffusion ofcomplimentary Ca<sup>2+</sup> and HCO<sub>3</sub><sup>-</sup> ions through different compartments separated by an interfacial channel.<br></div><div></div>

scholarly journals Novel Multifunctional Porous Liquid Composite for Recyclable Sequestration, Storage and In-situ Catalytic Conversion of Carbon Dioxide

2020 ◽  
Author(s):  
Archita Bhattacharjee ◽  
Raj Kumar ◽  
KAMENDRA SHARMA
Keyword(s):  
Carbon Dioxide ◽  
Light And Electron Microscopy ◽  
Enzymatic Reaction ◽  
Catalytic Conversion ◽  
Porous Solids ◽  
X Ray Diffraction ◽  
Hollow Silica ◽  
Polymer Surfactant ◽  
Silica Nanorods

<div><b>Novel Multifunctional Porous Liquid Composite for Recyclable Sequestration, Storage and In-situ Catalytic Conversion of Carbon Dioxide</b> <br></div><div><br></div><div>Archita Bhattacharjee, Raj Kumar and Prof. K. P. Sharma* Department of Chemistry, IIT Bombay, Powai, India <br></div><div>* E-mail: [email protected] <br></div><div><br></div><div>Keywords: Porous liquid composite, mesoporous liquid, hollow silica nanorods, CO<sub>2</sub> capture, CO<sub>2</sub> catalytic conversion<br></div><div><br></div><div>Abstract: Permanent pores combined with fluidity renders flow processability to porous liquids otherwise not seen in porous solids. Although, sequestration of different gases has recently been shown in porous liquids, there is still adearth of studies for deploying in-situ chemical reactionsto convert adsorbed gases into utility chemicals in this phase. Here, a facile method for the design and development of a new class of solvent-less porous liquid composite which, as shown for the first time, can catalyze the conversion of adsorbed gaseous molecules into industrially relevant product, is shown. The recyclable porous liquid composite comprising polymer-surfactant modified hollow silica nanorods and carbonic anhydrase enzyme not onlysequesters (5.5 ccg<sup>-1</sup> at 273 K and 1 atm) and stores CO<sub>2</sub>,but is also capable of driving an in-situ enzymatic reaction for hydration of CO<sub>2</sub> to HCO<sub>3</sub><sup>-</sup> ion, subsequently converting it CaCO<sub>3</sub> due to reaction with pre-dissolved Ca<sup>2+</sup>. Light and electron microscopy combined with x-ray diffraction reveals the nucleation and growth of calcite and aragonite crystals. Moreover, the liquid-like property of the porous composite material can be harnessed by executing the same reaction via diffusion ofcomplimentary Ca<sup>2+</sup> and HCO<sub>3</sub><sup>-</sup> ions through different compartments separated by an interfacial channel.<br></div><div></div>

A mixed-function-grafted magnetic mesoporous hollow silica microsphere immobilized lipase strategy for ultrafast transesterification in a solvent-free system

RSC Advances ◽  
2015 ◽  
Vol 5 (54) ◽  
pp. 43074-43080 ◽  
Author(s):  
Mingming Zheng ◽  
Lijing Mao ◽  
Fenghong Huang ◽  
Xia Xiang ◽  
Qianchun Deng ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Immobilized Lipase ◽  
Solvent Free ◽  
Silica Microspheres ◽  
Silica Microsphere ◽  
Free System ◽  
Hollow Silica ◽  
System P ◽  
Solvent Free System

A novel magnetic mesoporous hollow silica microspheres immobilized lipase is described for ultrafast transesterification of phytosterol with fatty acids and triglycerides in a solvent-free system.

scholarly journals FABRICATION OF HOLLOW SILICA NANORODS USING NANOCRYSTALLINE CELLULOSE AS TEMPLATES

BioResources ◽  
2012 ◽  
Vol 7 (2) ◽  
Author(s):  
Guangshuai Fu ◽  
Aijian He ◽  
Yongcan Jin ◽  
Qiang Cheng ◽  
Junlong Song
Keyword(s):  
Nanocrystalline Cellulose ◽  
Hollow Silica ◽  
Silica Nanorods

Self-Organization of Glucose Oxidase–Polymer Surfactant Nanoconstructs in Solvent-Free Soft Solids and Liquids

2014 ◽  
Vol 118 (39) ◽  
pp. 11573-11580 ◽  
Author(s):  
Kamendra P. Sharma ◽  
Yixiong Zhang ◽  
Michael R. Thomas ◽  
Alex P. S. Brogan ◽  
Adam W. Perriman ◽  
...  
Keyword(s):  
Glucose Oxidase ◽  
Solvent Free ◽  
Self Organization ◽  
Soft Solids ◽  
Polymer Surfactant

A Polymer Surfactant Corona Dynamically Replaces Water in Solvent-Free Protein Liquids and Ensures Macromolecular Flexibility and Activity

2012 ◽  
Vol 134 (32) ◽  
pp. 13168-13171 ◽  
Author(s):  
François-Xavier Gallat ◽  
Alex P. S. Brogan ◽  
Yann Fichou ◽  
Nina McGrath ◽  
Martine Moulin ◽  
...  
Keyword(s):  
Solvent Free ◽  
Free Protein ◽  
Polymer Surfactant
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