Authors:Alfonz Plško, Marek Liška, and Jana Pagáčová
glasses with the composition: 30 wt% Al 2 O3 –70 wt% Yb 2 O3 (A30Yb70), and 45 wt% Al 2 O3 –55 wt% Yb 2 O3 (A45Yb55) was studied by DTA in this study.
The DTA measurements were performed by the digitized
Authors:Pawel Mierczynski, Tomasz P. Maniecki, Waldemar Maniukiewicz, and Wojciech K. Jozwiak
. These different nanostructures give rise to different catalytic performances [ 9 ].
The main objects of this study were monometallic Cu and bimetallic Au–Cu catalysts on bi-oxide Cr 2 O3 ·3Al 2 O3 support prepared by conventional impregnation
Authors:Petra Šulcová, Jan Večeřa, and Pavel Bystrzycki
δ-Bi 2 O3 is the best ionic conductor in intermediate temperature range from 700 to 800 °C. Many attempts have been made to synthesize good ionic conductor which has better stability and ionic conductivity
infrared windows, ultra fast optical switches, optical isolators, and other photonic devices for communications [ 1 – 7 ]. Gallium oxide is known as glass-former where GaO 4 and GaO 6 are the basic structural units [ 2 ]. The addition of Ga 2 O3 to
devoted to the preparation of Mn 2 O3 with different morphologies including rods, wires, cubes, octahedral and hollow structures [ 16 – 19 ]. Various types of Mn 2 O3 and noble metal doped/supported Mn 2 O3 [ 20 – 22 ] are widely used for CO
Authors:Yunfeng Hu, Jinpeng Cao, Jun Deng, Baoyu Cui, Mingwei Tan, Junfei Li, and Hongsheng Zhang
] reported that when Ni modified Co/γ-Al 2 O3 catalyst was applied for the reaction, the ethanol conversion rate of 100% and the selectivity of acetonitrile up to 92.5% were obtained. However, the reaction temperature was as high as 420 °C. The reaction
Authors:Arunkumar Lagashetty, H. Vijayanand, S. Basavaraja, Mahesh Bedre, and A. Venkataraman
in a non-conducting polymer matrix [ 14 ]. Looking into the wide application of these, in this study, we have prepared polycarbonate nanocomposite films by dispersing CuO and γ-Fe 2 O3 material in the polycarbonate matrix through solvent casting
the catalytic properties of such compounds are related to the presence of isolated VO 4 tetrahedrons in them [ 6 , 7 ]. This finding has prompted us to undertake a comprehensive study of CoO–In 2 O3 –V 2 O 5 system.
Two versions of the CoO
Authors:P. Mošner, K. Vosejpková, L. Koudelka, and L. Beneš
addition of B 2 O3 into the phosphate glasses or P 2 O 5 into the borate glasses leads to improving of their chemical stability due to the formation of P–O–B linkages in the glass network [ 3 – 5 ]. The addition of B 2 O3 into the phosphate glasses
Authors:Jian-Zhong Guo, Zhao-Yin Hou, and Xiao-Ming Zheng
one of the most successful approaches.
Previous works found that Gd 2 O3 -promoted Ni/SiO 2 catalysts exhibited higher catalytic activity and stability for MATR in a fluidized reactor at a lower space velocity 9000 h −1 [ 22 ]. The main