Surface modification of aramid fibers via ammonia-plasma treatment

2013 ◽  
Vol 131 (10) ◽  
pp. n/a-n/a ◽  
Author(s):  
Shuang Li ◽  
Keqing Han ◽  
Huaiping Rong ◽  
Xuanzhe Li ◽  
Muhuo Yu
Keyword(s):  
Surface Modification ◽  
Plasma Treatment ◽  
Aramid Fibers ◽  
Ammonia Plasma

Effect of Irradiation Power on Surface Modification of Polyester by Ammonia Plasma Treatment

2008 ◽  
Vol 47 (5) ◽  
pp. 3603-3605 ◽  
Author(s):  
Kazuo Narushima ◽  
Nanami Yamashita ◽  
Yoshihiro Isono ◽  
Mohammed Rafiqul Islam ◽  
Manabu Takeuchi
Keyword(s):  
Surface Modification ◽  
Plasma Treatment ◽  
Ammonia Plasma ◽  
Irradiation Power

Valence variation of phase-pure M1 MoVNbTe oxide by plasma treatment for improved catalytic performance in oxidative dehydrogenation of ethane

RSC Advances ◽  
2015 ◽  
Vol 5 (111) ◽  
pp. 91295-91301 ◽  
Author(s):  
Xin Chen ◽  
Qianli Yang ◽  
Bozhao Chu ◽  
Hang An ◽  
Yi Cheng
Keyword(s):  
Surface Modification ◽  
Metal Oxide ◽  
Plasma Treatment ◽  
Oxidative Dehydrogenation ◽  
Oxidation State ◽  
Active Sites ◽  
Oxygen Plasma ◽  
Catalyst Surface ◽  
Catalytic Performance ◽  
Phase Pure

This work presents a new method of catalyst surface modification by using oxygen plasma to change the oxidation state of active sites in metal oxide catalysts.

A comparative study of the electrorheological properties of various N-doped nanomaterials using ammonia plasma treatment

2016 ◽  
Vol 52 (26) ◽  
pp. 4808-4811 ◽  
Author(s):  
Chang-Min Yoon ◽  
Gyeongseop Lee ◽  
Jungchul Noh ◽  
Choonghyeon Lee ◽  
Oug Jae Cheong ◽  
...  
Keyword(s):  
Comparative Study ◽  
Plasma Treatment ◽  
Ammonia Plasma ◽  
Doped Nanomaterials ◽  
Electrorheological Properties

Nanomaterials with different morphologies, sizes, and compositions are successfully treated by ammonia plasma to exhibit significantly enhanced electrorheological (ER) performance.

scholarly journals High surface area nitrogen-functionalized Ni nanozymes for efficient peroxidase-like catalytic activity

PLoS ONE ◽  
2021 ◽  
Vol 16 (10) ◽  
pp. e0257777
Author(s):  
Anuja Tripathi ◽  
Kenneth D. Harris ◽  
Anastasia L. Elias
Keyword(s):  
Catalytic Activity ◽  
Plasma Treatment ◽  
Surface Composition ◽  
Point Of Care ◽  
High Surface ◽  
Effective Means ◽  
High Surface Area ◽  
Catalytic Performance ◽  
Optimal Time ◽  
Ammonia Plasma

Nitrogen-functionalization is an effective means of improving the catalytic performances of nanozymes. In the present work, plasma-assisted nitrogen modification of nanocolumnar Ni GLAD films was performed using an ammonia plasma, resulting in an improvement in the peroxidase-like catalytic performance of the porous, nanostructured Ni films. The plasma-treated nanozymes were characterized by TEM, SEM, XRD, and XPS, revealing a nitrogen-rich surface composition. Increased surface wettability was observed after ammonia plasma treatment, and the resulting nitrogen-functionalized Ni GLAD films presented dramatically enhanced peroxidase-like catalytic activity. The optimal time for plasma treatment was determined to be 120 s; when used to catalyze the oxidation of the colorimetric substrate TMB in the presence of H2O2, Ni films subjected to 120 s of plasma treatment yielded a much higher maximum reaction velocity (3.7⊆10−8 M/s vs. 2.3⊆10−8 M/s) and lower Michaelis-Menten coefficient (0.17 mM vs. 0.23 mM) than pristine Ni films with the same morphology. Additionally, we demonstrate the application of the nanozyme in a gravity-driven, continuous catalytic reaction device. Such a controllable plasma treatment strategy may open a new door toward surface-functionalized nanozymes with improved catalytic performance and potential applications in flow-driven point-of-care devices.

Surface Modification of Cellulose Membrane by Air Plasma Treatment

2013 ◽  
Vol 770 ◽  
pp. 112-115
Author(s):  
Nawal Binhayeeniyi ◽  
Adinan Jehsu ◽  
Mancharee Sukpet ◽  
Safitree Nawae
Keyword(s):  
Surface Modification ◽  
Plasma Treatment ◽  
Surface Modifications ◽  
Contact Angles ◽  
Cellulose Membrane ◽  
Air Plasma ◽  
Before And After ◽  
Cellulose Membranes ◽  
Hydrophilic Membranes ◽  
Air Plasma Treatment

Low-temperature air plasma was used to treat the cellulose membranes by varying the period of time from 10 to 30 minutes. The surfaces of membranes were changed from hydrophobic to hydrophilic membranes. The contact angles of treated membranes were increased when increasing time to treat. The surface modifications of membrane before and after treated were characterized by SEM. It is shown that air plasma treatment is used to improve the roughness. The dielectric property was also studied.

Surface modification of silica glass by CHF3 plasma treatment and carbon negative-ion implantation for cell pattern adhesion

2011 ◽  
Vol 206 (5) ◽  
pp. 900-904 ◽  
Author(s):  
Hiroshi Tsuji ◽  
Piyanuch Sommani ◽  
Yuichiro Hayashi ◽  
Hiroyuki Kojima ◽  
Hiroko Sato ◽  
...  
Keyword(s):  
Surface Modification ◽  
Ion Implantation ◽  
Plasma Treatment ◽  
Silica Glass ◽  
Negative Ion ◽  
Cell Pattern
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