scholarly journals Post-Functionalization of Room-Temperature Ferromagnetic Nanoparticle via Surface Modification

Hyomen Kagaku ◽  
2017 ◽  
Vol 38 (1) ◽  
pp. 30-34
Author(s):  
Takashi YAMAMOTO ◽  
Yasuaki EINAGA
2019 ◽  
Vol 123 (32) ◽  
pp. 19269-19274 ◽  
Author(s):  
Keita Shinzato ◽  
So Hamamoto ◽  
Hiroki Miyaoka ◽  
Takayuki Ichikawa

2021 ◽  
Author(s):  
Jiabin Xu ◽  
Xiaoshuang Rao ◽  
Xiaoyu Xu ◽  
Kechong Wang ◽  
Bao Guo ◽  
...  

Abstract RB-SiC ceramic is one of the most important and useful material as optical precision elements in many scientific research fields. In this paper, a novel cold atmospheric plasma (CAP), which is based on the precision grinding process in surface technology to modify at room temperature (RT) for grinding with a combination of plasma oxidation surface modification is proposed. To identify the performance of the proposed cold atmospheric plasma (CAP) method on the surface modification of RB-SiC ceramic, precision grinding test was conducted. To reveal the fundamental issue in the grinding of RB-SiC ceramic, numerical calculation and model analysis were conducted to investigate the effect of the composite process on grinding forces and the mechanism of subsurface material removal in the presence of plasma oxidation. As a result of the method included the kept constant during the precision grinding of the composite process self-adaption-grinding process to avoid the deviation caused by second grinding particle entry. As a summary, we provides a significant cold atmospheric plasma-precision grinding compound process toward the establishment of the basic theory by analyzing the mechanism of the simulated design and computation. The process and technical difficulties of RB-SiC ceramic and mechanism of subsurface material removal during precision grinding were be solved.


2013 ◽  
Vol 1 (9) ◽  
pp. 1885 ◽  
Author(s):  
Anupam Giri ◽  
Nirmal Goswami ◽  
Monalisa Pal ◽  
Myo Tay Zar Myint ◽  
Salim Al-Harthi ◽  
...  

2011 ◽  
Vol 66-68 ◽  
pp. 1067-1071
Author(s):  
Kun Qiao ◽  
Bo Zhu ◽  
Xiang Yu Yin ◽  
Cheng Rui Di ◽  
Wei Zhao ◽  
...  

Aramid fiber (AF) was treated by NaOH solution of various concentrations with supersonic vibration at room temperature. The density of NaOH solution was the main parameter. Elongation at break and break strength were tested. The chemical composition of AF was characterized by elemental analysis. The surface of AF was examined by scanning electronic microscopy (SEM). It was shown that elongation at break of treated AF was not decreased, and break strength was a little increased, first increases and then decreases as the concentration of NaOH solution raising. It was also found that the surface of AF after modified was a little rougher. Low concentration of NaOH solution was fit to modify AF.


Author(s):  
Zijing Wang ◽  
Fen Wang ◽  
Angga Hermawan ◽  
Jianfeng Zhu ◽  
Shu Yin

In this work, a surface modification strategy by oxygen plasma irradiation was introduced for the first time to significantly improve the room temperature sensing performance of Ti3C2T[Formula: see text] MXene. Oxygen plasma irradiation induced TiO2 formation on the Ti3C2T[Formula: see text] surface, produced lattice distortion, increased the specific surface area, and provided mesoporous structures. The gas sensitivity performance characterization results show the gas response value of Ti3C2T[Formula: see text] irradiated for 0.5 h (Ti3C2T[Formula: see text]0.5P) was hundreds of times better than the pristine Ti3C2T[Formula: see text]alongside with its sufficient response time (280 s) and rapid recovery time (11 s). The excellent sensing performance is attributed to the formation of more reactive sites on the edge and basal planes of Ti3C2T[Formula: see text] and mesoporous structures which greatly improved the adsorption of ethanol. Additionally, the relatively low work function of TiO2 facilitates the formation of a Schottky junction for easy migration of charge carrier, the thereby shortening the sensing response time. This strategy offers a facile and controllable surface modification of other 2D materials, without damaging their structures.


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