In situ growth-etching approach to the preparation of hierarchically macroporous zeolites with high MTO catalytic activity and selectivity

2014 ◽  
Vol 2 (42) ◽  
pp. 17994-18004 ◽  
Author(s):  
Dongyang Xi ◽  
Qiming Sun ◽  
Jun Xu ◽  
Minhyung Cho ◽  
Hae Sung Cho ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
In Situ Growth

g-C3N4/TiO2 composite microspheres: in situ growth and high visible light catalytic activity

CrystEngComm ◽  
2020 ◽  
Vol 22 (42) ◽  
pp. 7104-7112
Author(s):  
Kangkai Hu ◽  
Lei E ◽  
Chaoyang Hu ◽  
Dan Zhao ◽  
Mengyao Zhu ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Catalytic Activity ◽  
Visible Light ◽  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Photocatalytic Properties ◽  
In Situ Growth ◽  
Composite Microspheres ◽  
Visible Light Photocatalytic

The g-C3N4/TiO2 heterojunction, possessing a 3D flower-like self-assembled morphology, realizing excellent visible-light photocatalytic properties, is a photocatalyst for wastewater treatment or a photoanode for photoelectrochemical water splitting.

In situ growth of small Au nanoparticles on ZnO nanorods via ultrasonic irradiation toward super-enhanced catalytic activity

RSC Advances ◽  
2016 ◽  
Vol 6 (109) ◽  
pp. 107433-107441 ◽  
Author(s):  
Xueling Song ◽  
Xiao Zhang ◽  
Ping Yang
Keyword(s):  
Catalytic Activity ◽  
Co Oxidation ◽  
Ultrasonic Irradiation ◽  
Photocatalytic Performance ◽  
Au Nanoparticles ◽  
Zno Nanorods ◽  
Sonochemical Method ◽  
In Situ Growth ◽  
Oxidation Activity

Au/ZnO NRs created via a sonochemical method exhibit superior photocatalytic performance and enhanced CO oxidation activity.

Epitaxial growth manner and structure of superconducting oxide films

1990 ◽  
Vol 48 (4) ◽  
pp. 2-3
Author(s):  
Yoshichika Bando ◽  
Takahito Terashima ◽  
Kenji Iijima ◽  
Kazunuki Yamamoto ◽  
Kazuto Hirata ◽  
...  
Keyword(s):  
Ultrathin Films ◽  
Film Surface ◽  
High Energy ◽  
Epitaxial Films ◽  
Layer By Layer ◽  
Initial Growth ◽  
In Situ Growth ◽  
High Quality ◽  
Activated Reactive Evaporation

The high quality thin films of high-Tc superconducting oxide are necessary for elucidating the superconducting mechanism and for device application. The recent trend in the preparation of high-Tc films has been toward “in-situ” growth of the superconducting phase at relatively low temperatures. The purpose of “in-situ” growth is to attain surface smoothness suitable for fabricating film devices but also to obtain high quality film. We present the investigation on the initial growth manner of YBCO by in-situ reflective high energy electron diffraction (RHEED) technique and on the structural and superconducting properties of the resulting ultrathin films below 100Å. The epitaxial films have been grown on (100) plane of MgO and SrTiO, heated below 650°C by activated reactive evaporation. The in-situ RHEED observation and the intensity measurement was carried out during deposition of YBCO on the substrate at 650°C. The deposition rate was 0.8Å/s. Fig. 1 shows the RHEED patterns at every stage of deposition of YBCO on MgO(100). All the patterns exhibit the sharp streaks, indicating that the film surface is atomically smooth and the growth manner is layer-by-layer.

Sign in / Sign up

Export Citation Format

Share Document