scholarly journals COMPARATIVE STRUCTURAL STUDIES OF LINI0.8CO0.1MN0.1O2 CATHODE MATERIALS PREPARED BY SOL - GEL VERSUS SOLID - STATE - REACTION METHOD

2019 ◽  
Vol 7 (10) ◽  
pp. 1310-1317
Author(s):  
V Kondala Rao ◽  
◽  
N Murali ◽  
V Veeraiah ◽  
K Samatha ◽  
...  
2016 ◽  
Vol 698 ◽  
pp. 60-65 ◽  
Author(s):  
Tôru Kyômen ◽  
Miyu Seki ◽  
Minoru Hanaya ◽  
Hiroshi Takashima

Powder samples of (Ca,Sr)TiO3:Er were prepared by a solid-state reaction method. Photoluminescence due to f-f transitions of Er3+ was not induced by band-gap excitation of (Ca,Sr)TiO3 but by f-f transitions of Er3+. An electroluminescent device in which thin films of Ca0.6Sr0.4TiO3:Er and SnO2:Sb are stacked alternately was prepared by sol-gel and spin-coating methods. Very weak electroluminescence due to f-f transition of Er3+ was observed in the device.


2015 ◽  
Vol 3 (5) ◽  
pp. 2025-2035 ◽  
Author(s):  
Qingyu Li ◽  
Fenghua Zheng ◽  
Youguo Huang ◽  
Xiaohui Zhang ◽  
Qiang Wu ◽  
...  

The solid state reaction method was applied to prepare a series of LiFePO4/C materials by adding various surfactants. The as-prepared LiFePO4/C particles using various surfactants show different electrochemical performances.


RSC Advances ◽  
2017 ◽  
Vol 7 (60) ◽  
pp. 37765-37770 ◽  
Author(s):  
Huanhuan Liu ◽  
Long Yuan ◽  
Hui Qi ◽  
Yanyan Du ◽  
Shan Wang ◽  
...  

Reversible thermochromic inorganic materials of Sm3Fe5O12with different particle sizes have been synthesized by a conventional high temperature solid state reaction method (2.51 μm) and sol–gel method (0.16 μm).


RSC Advances ◽  
2017 ◽  
Vol 7 (81) ◽  
pp. 51721-51728 ◽  
Author(s):  
Zhili Zhang ◽  
Donghui Chen ◽  
Chengkang Chang

Layered RbxLi(1−x)Ni0.8Co0.1Mn0.1O2 (x = 0, 0.005, 0.01, 0.02) materials were synthesized with different Rb concentrations using a solid state reaction method.


2011 ◽  
Vol 399-401 ◽  
pp. 1016-1019
Author(s):  
Yue Li ◽  
Da Wei He ◽  
Yong Sheng Wang ◽  
Fu Ming ◽  
Yang Wu ◽  
...  

In this paper, Ba3MgSi2O8: Eu2+, Mn2+ phosphor was synthesized by the sol-gel method and high temperature solid-state reaction method. The structure and emission spectrum excited by near violet light were investigated. we studied the process of phase change in roasting and determined the approximate crystallization temperature of Ba3MgSi2O8: Eu2+, Mn2+ phosphors. Our results demonstrate that 514 nm emission bands were from Eu2+ ions replacing of the sites of Ba2+ in Ba2SiO4. 440 nm emission bands originated from Eu2+ ions substituting the sites of Ba2+ in Ba3MgSi2O8, corresponded to 4f65d1→4f7 transition of Eu2+ ions. 615 nm emission bands ascribed to Mn2+ ions taking place of the sites of Mg2+ ions, corresponded to 4T→6A red launch of Mn2+ ions.


2016 ◽  
Vol 52 (4) ◽  
pp. 2366-2372 ◽  
Author(s):  
Wen-hua Cheng ◽  
Lei Wang ◽  
Qi-bing Zhang ◽  
Zhao-jun Wang ◽  
Jin-bao Xu ◽  
...  

2013 ◽  
Vol 457-458 ◽  
pp. 93-97
Author(s):  
Yen Chun Liu ◽  
Ming Cheng Liu ◽  
Robert Lian Huey Liu ◽  
Mao Chieh Chi

The study with Li2CO3 and Mn3O4 through the solid state reaction makes cathode material for lithium battery spinel - LiMn2O4. According to past literature, under the solid-state reaction. The experiment carries out sintering at temperature of 850°C.. Cathode materials under these sintering temperatures are made to fabricate battery. For Ni doped LiMn2O4, the capacitance decreasing speed is slow and stable; after 15 times charging-discharging cycles, the attrition rates were 3.05 % or less. The result of experiment demonstrates that the best sintering temperature is at 850°C. Under the condition of 850°C, various contents for extra amount of lithium (1.02 mole-1.1 mole) are fabricated and range of working voltage is released. It is found a further increase of initial capacity to 140.51 mAh/g. LiMn2O4 further extends circulation and usage.


RSC Advances ◽  
2020 ◽  
Vol 10 (71) ◽  
pp. 43762-43772
Author(s):  
Qianqian Zhao ◽  
Guo Feng ◽  
Feng Jiang ◽  
Shanfang Lan ◽  
Junhua Chen ◽  
...  

Two different methods were used to prepare Fe2TiO5/C photocatalysts, demonstrating the superiorities of in situ carbon introduced by a NHSG method.


2018 ◽  
Vol 790 ◽  
pp. 60-64 ◽  
Author(s):  
Tôru Kyômen ◽  
Shido Saito ◽  
Minoru Hanaya ◽  
Hiroshi Takashima

La2Ti2O7:Pr powder was prepared by a solid-state reaction method. Photoluminescence due to f-f transitions of Pr3+was induced by band-gap excitation of La2Ti2O7. La2Ti2O7:Pr thin film was prepared by sol-gel and spin-coating methods. The thin film showed visible electroluminescence due to f-f transition of Pr3+by applying ac voltages.


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