scholarly journals Nanocellulose-based polymer hybrids and their emerging applications in biomedical engineering and water purification

RSC Advances ◽  
2019 ◽  
Vol 9 (33) ◽  
pp. 19143-19162 ◽  
Author(s):  
Dinesh K. Patel ◽  
Sayan Deb Dutta ◽  
Ki-Taek Lim
Keyword(s):  
Mechanical Properties ◽  
Surface Area ◽  
Water Purification ◽  
Biomedical Engineering ◽  
High Surface ◽  
High Surface Area ◽  
Cellulose Hydrolysis ◽  
Polymer Hybrids ◽  
Good Biocompatibility ◽  
Optical And Mechanical Properties

Nanocellulose, derived from cellulose hydrolysis, has unique optical and mechanical properties, high surface area, and good biocompatibility.

Synthesis of high surface area and functionalized nanoporous biocarbons and their efficiency for CO2 capture and supercapacitors

2021 ◽  
Author(s):  
Gurwinder Singh ◽  
Rohan Bahadur ◽  
Ajanya Maria Ruban ◽  
Jefrin Marykala Davidraj ◽  
Dawei Su ◽  
...  
Keyword(s):  
Energy Storage ◽  
Surface Area ◽  
Co2 Capture ◽  
Water Purification ◽  
High Surface ◽  
High Surface Area ◽  
Energy Storage And Conversion ◽  
Waste Biomass ◽  
Fabrication Technology ◽  
Significant Attention

Nanoporous biocarbons derived from waste biomass have created significant attention owing to their great potential for energy storage and conversion and water purification. However, the fabrication technology for these materials...

Porous Al2O3 Ceramics with High Surface Area and Superior Mechanical Properties Fabricated by the Decomposition of Al(OH)3

2001 ◽  
Vol 206-213 ◽  
pp. 1965-1968 ◽  
Author(s):  
Zhen-Yan Deng ◽  
Takayuki Fukasawa ◽  
Guo Jun Zhang ◽  
Motohide Ando ◽  
Tatsuki Ohji
Keyword(s):  
Mechanical Properties ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Superior Mechanical Properties

Production of porous copper with high surface area for efficient water purification

2016 ◽  
Vol 13 ◽  
pp. 85-89 ◽  
Author(s):  
Nikolaos Michailidis ◽  
Fani Stergioudi ◽  
Panagiotis Seventekidis ◽  
Alexander Tsouknidas ◽  
Dimitrios Sagris
Keyword(s):  
Surface Area ◽  
Water Purification ◽  
High Surface ◽  
High Surface Area ◽  
Porous Copper

Steps in growth of Nb-doped layered titanates with very high surface area suitable for water purification

2014 ◽  
Vol 148 (3) ◽  
pp. 874-881 ◽  
Author(s):  
Marija Milanović ◽  
Ljubica M. Nikolić ◽  
Ivan Stijepović ◽  
Athanassios G. Kontos ◽  
Konstantinos P. Giannakopoulos
Keyword(s):  
Surface Area ◽  
Water Purification ◽  
High Surface ◽  
High Surface Area ◽  
Very High

Polymer-Silica Nanocomposite Aerogels with Enhanced Mechanical Properties Using Chemical Vapor Deposition (CVD) of Cyanoacrylates

2007 ◽  
Vol 1007 ◽  
Author(s):  
Dylan J. Boday ◽  
Douglas A. Loy ◽  
Kimberley A. DeFriend ◽  
Kennard V. Wilson ◽  
David Coder
Keyword(s):  
Mechanical Properties ◽  
Chemical Vapor Deposition ◽  
Surface Area ◽  
Vapor Deposition ◽  
High Surface ◽  
High Surface Area ◽  
Chemical Vapor ◽  
Fold Increase ◽  
Silica Aerogels ◽  
Organic Polymer

ABSTRACTAerogels were structurally modified using chemical vapor deposition (CVD) of cyanoacrylate monomers to afford polycyanoacrylate-aerogel nanocomposites. Silica aerogels are low density, high surface area materials whose applications are limited by their fragility. Cyanoacrylate CVD allowed us to deposit a film of organic polymer throughout fragile porous monoliths within hours. Our experiments have shown that polymerization of the cyanoacrylate monomers was initiated by the adsorbed water on the surface of the silica permitting the nanocomposites structures to be formed with little or no sample preparation. We found that the strength of the polycyanoacrylate-aerogel nanocomposites increased thirty two-fold over the untreated aerogels with only a three-fold increase in density and an eight-fold decrease in surface area. Along with the improvement in mechanical properties, the aerogels became less hydrophilic than un-modified aerogels. Polycyanoacrylate-coated aerogels were placed directly into water and did not suffer catastrophic fragmentation as observed with un-modified silica aerogels.

scholarly journals Nanostructured materials for CBRNdetection

2020 ◽  
Vol 30 (1) ◽  
pp. 1-8
Author(s):  
Alexandru SIRGHIE ◽  
◽  
Mihai OPROESCU ◽  
Gabriel Vasile IANA ◽  
Adriana Gabriela PLAIASU
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Surface Area ◽  
Nanostructured Materials ◽  
High Surface ◽  
High Surface Area ◽  
Physical And Mechanical Properties ◽  
Recent Trends

Nanomaterials are gaining significance in technological applications due to their chemical, physical, and mechanical properties and enhanced performance when compared with their bulkier counterparts. The synthesis of nanostructured materials has led to a significant increase in properties (thermal, optical, electrical, magnetic, mechanical) as well as the discovery of materials with new properties due the fact that at the nanoscale the materials have a high surface area Most applications of nanomaterials in sensors are related to their synthesis. In this paper we report recent trends in applications of various nanomaterials such as nanoparticles, carbon nanotubes, nanowires andgraphene to detect CBRN agents.

Tenacious Mass Transfer Limitations Drive Catalytic Selectivity during Electrochemical Carbon Dioxide Reduction

2019 ◽  
Author(s):  
Kailun Yang ◽  
Recep Kas ◽  
Wilson A. Smith
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Catalyst Layer ◽  
Active Surface ◽  
Active Surface Area ◽  
High Concentration ◽  
Copper Electrodes ◽  
Surface Enhanced ◽  
Local Current

<p>This study evaluated the performance of the commonly used strong buffer electrolytes, i.e. phosphate buffers, during CO<sub>2</sub> electroreduction in neutral pH conditions by using in-situ surface enhanced infrared absorption spectroscopy (SEIRAS). Unfortunately, the buffers break down a lot faster than anticipated which has serious implications on many studies in the literature such as selectivity and kinetic analysis of the electrocatalysts. Increasing electrolyte concentration, surprisingly, did not extend the potential window of the phosphate buffers due to dramatic increase in hydrogen evolution reaction. Even high concentration phosphate buffers (1 M) break down within the potentials (-1 V vs RHE) where hydrocarbons are formed on copper electrodes. We have extended the discussion to high surface area electrodes by evaluating electrodes composed of copper nanowires. We would like highlight that it is not possible to cope with high local current densities on these high surface area electrodes by using high buffer capacity solutions and the CO<sub>2</sub> electrocatalysts are needed to be evaluated by casting thin nanoparticle films onto inert substrates as commonly employed in fuel cell reactions and up to now scarcely employed in CO<sub>2</sub> electroreduction. In addition, we underscore that normalization of the electrocatalytic activity to the electrochemical active surface area is not the ultimate solution due to concentration gradient along the catalyst layer.This will “underestimate” the activity of high surface electrocatalyst and the degree of underestimation will depend on the thickness, porosity and morphology of the catalyst layer. </p> <p> </p>

scholarly journals Rugae-like FeP nanocrystal assembly on a carbon cloth: an exceptionally efficient and stable cathode for hydrogen evolution

Nanoscale ◽  
2015 ◽  
Vol 7 (25) ◽  
pp. 10974-10981 ◽  
Author(s):  
Xiulin Yang ◽  
Ang-Yu Lu ◽  
Yihan Zhu ◽  
Shixiong Min ◽  
Mohamed Nejib Hedhili ◽  
...  
Keyword(s):  
Gas Phase ◽  
Surface Area ◽  
Hydrogen Evolution ◽  
Hydrogen Generation ◽  
High Surface ◽  
High Surface Area ◽  
Catalytic Efficiency ◽  
Carbon Cloth ◽  
Nanocrystal Assembly

High surface area FeP nanosheets on a carbon cloth were prepared by gas phase phosphidation of electroplated FeOOH, which exhibit exceptionally high catalytic efficiency and stability for hydrogen generation.

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