Pyrochlore Rare-Earth Hafnate RE2Hf2O7 (RE = La and Pr) Nanoparticles Stabilized by Molten-Salt Synthesis at Low Temperature

2019 ◽  
Vol 58 (2) ◽  
pp. 1241-1251 ◽  
Author(s):  
Madhab Pokhrel ◽  
Santosh K. Gupta ◽  
Kareem Wahid ◽  
Yuanbing Mao
Materials ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 70
Author(s):  
Cheng Liu ◽  
Xueyin Liu ◽  
Zhaoping Hou ◽  
Quanli Jia ◽  
Benjun Cheng ◽  
...  

Submicron-sized (~200 nm) aluminium boron carbide (Al8B4C7) particles were synthesised from Al, B4C and carbon black raw materials in a molten NaCl-based salt at a relatively low temperature. The effects of the salt type/assembly and the firing temperature on the synthesis process were examined, and the relevant reaction mechanisms discussed. The molten salt played an important role in the Al8B4C7 formation process. By using a combined salt of 95%NaCl + 5%NaF, an effective liquid reaction medium was formed, greatly facilitating the Al8B4C7 formation. As a result, essentially phase-pure Al8B4C7 was obtained after 6 h of firing at 1250 °C. This temperature was 350–550 °C lower than that required by the conventional direct reaction and thermal reduction methods.


2014 ◽  
Vol 262 ◽  
pp. 120-123 ◽  
Author(s):  
M.V. Reddy ◽  
S. Adams ◽  
Galen Tiong Ji Liang ◽  
Ian Foo Mingze ◽  
Huynh Van Tu An ◽  
...  

2020 ◽  
Vol 56 (41) ◽  
pp. 5548-5551 ◽  
Author(s):  
Song He ◽  
Hongfang Du ◽  
Ke Wang ◽  
Qianchi Liu ◽  
Jinmeng Sun ◽  
...  

A facile low-temperature molten salt approach has been successfully developed to construct MoS2@CoS2 heterostructures for high-efficiency hydrogen evolution reaction.


CrystEngComm ◽  
2019 ◽  
Vol 21 (11) ◽  
pp. 1809-1817 ◽  
Author(s):  
Xiao Wen ◽  
Can He ◽  
Bogang Wu ◽  
Ximing Huang ◽  
Zhaohui Huang ◽  
...  

The molten salt method was used to synthesize chlorapatite microcrystallites with regular shapes and uniform sizes at a relatively low temperature under an air atmosphere.


2015 ◽  
Vol 182 ◽  
pp. 1060-1069 ◽  
Author(s):  
P. Nithyadharseni ◽  
M.V. Reddy ◽  
Kenneth I. Ozoemena ◽  
R. Geetha Balakrishna ◽  
B.V.R. Chowdari

2014 ◽  
Vol 1679 ◽  
Author(s):  
Shiang Teng ◽  
Wei Wang ◽  
Ashutosh Tiwari

ABSTRACTThe solid state electrolyte (SSE) of Li5La3Nb2O12 (LLNO) was synthesized via a novel molten salt synthesis (MSS) method at the relatively low temperature of 900°C. The low sintering temperature prevented the loss of lithium that commonly occurs during synthesis of the SSE using conventional solid state or wet chemical reactions. Recent publications have demonstrated that preserving the Li content is critical in improving the ionic conductivity of SSEs. The LLNO in this experiment showed a high Li-ion conductivity which is comparable to other values reported for LLNO. X-ray diffraction (XRD) measurements confirmed the formation of the cubic garnet Ia-3d crystal structure. In addition, the morphology was examined by scanning electron microscopy (SEM), which showed a uniform grain size and crack-free microstructure. These results demonstrate that MSS is a powerful synthesis method to fabricate LLNO at a relatively low temperature while still achieving a high quality material.


2012 ◽  
Vol 724 ◽  
pp. 41-44 ◽  
Author(s):  
Xiu Lan Wu ◽  
Dan Zhao ◽  
Jian Feng Zhu ◽  
Qiang Ren

The high purity mullite whiskers were successfully prepared via molten-salt synthesis (MSS) method using eutectic salt Na2SO4 as the flux at a relatively low temperature of 1100 °C for 3 h from a mixture of coal gangue and Al2(SO4)3·18H2O. The phase formation and microstructure of the as synthesized whiskers were characterized via differential scanning calorimetry (DSC), X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The influence of Na2SO4 content on the morphology and size of the resulting mullite whiskers were also investigated in detail. The results indicate that the as fabricated mullite whiskers are dispersed uniformly with a diameter of 43-69 nm and a relatively large aspect ratio of more than 30.


2004 ◽  
Vol 265 (1-2) ◽  
pp. 220-223 ◽  
Author(s):  
Xiong Wang ◽  
Lisheng Gao ◽  
Fu Zhou ◽  
Zude Zhang ◽  
Mingrong Ji ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document