Sodium titanium oxide bronze nanoparticles synthesized via concurrent reduction and Na+-doping into TiO2(B)

Nanoscale ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 1442-1450 ◽  
Author(s):  
George Hasegawa ◽  
Moeko Tanaka ◽  
Junie Jhon M. Vequizo ◽  
Akira Yamakata ◽  
Hajime Hojo ◽  
...  

Topotactic reduction of TiO2(B) with NaBH4 accompanies sodium-ion intercalation and oxygen-deficiency formation, resulting in conductive NaxTiO2−δ bronze nanoparticles.

2009 ◽  
Vol 1218 ◽  
Author(s):  
Shunta Harada ◽  
Katsushi Tanaka ◽  
Haruyuki Inui

AbstractThermoelectric properties of a homologous series of Magnéli phase titanium oxides TinO2n-1 (n = 2, 3..) have been investigated. Dense polycrystalline specimens with nominal composition of TiO2-x (x = 0.10, 0.20) have been prepared by conventional hot-pressing. X-ray diffraction analysis has revealed that prepared specimens are slightly reduced during hot-pressing. Electrical conduction is of n-type for all prepared titanium oxides and electrical resistivity and absolute values of Seebeck coefficient decrease with increasing oxygen deficiency. The carrier concentration of Magnéli phase titanium oxide increases with increasing oxygen deficiency. Lattice thermal conductivity decreases with increasing oxygen deficiency by more than 60% at room temperature and 40% at 773K compared to TiO2, which can be due to the presence of dense planar defects. The largest thermoelectric figure of merit Z, 1.6×10-4 K-1 at 773K, was obtained in TiO1.90 hot pressed specimen.


Author(s):  
VENKATA RAMI REDDY BODDU ◽  
Manikandan Palanisamy ◽  
Lichchhavi Sinha ◽  
Subhash Yadav ◽  
Vilas Pol ◽  
...  

Despite multiple phase transitions occur during Na+ ion intercalation and deintercalation, enhanced charge-discharge rate, and long cycle life are achieved to hexagonal shaped P2-type NaCoO2 cathode for sodium-ion batteries (SIBs)....


2021 ◽  
Vol 59 ◽  
pp. 38-46
Author(s):  
Wen-Bei Yu ◽  
Wen-Da Dong ◽  
Chao-Fan Li ◽  
Nasiruddin Macadam ◽  
Jiu-Xiang Yang ◽  
...  

2019 ◽  
Vol 7 (8) ◽  
pp. 4175-4184 ◽  
Author(s):  
Juhan Lee ◽  
Pattarachai Srimuk ◽  
Rose Zwingelstein ◽  
Rafael Linzmeyer Zornitta ◽  
Jaehoon Choi ◽  
...  

Hydrated vanadyl phosphate is a promising electrode material for electrochemical water desalinationviareversible ion intercalation.


2016 ◽  
Vol 4 (44) ◽  
pp. 17419-17430 ◽  
Author(s):  
Ramchandra S. Kalubarme ◽  
Akbar I. Inamdar ◽  
D. S. Bhange ◽  
Hyunsik Im ◽  
Suresh W. Gosavi ◽  
...  

This is the first report on the use of metal titanate (NiTiO3), in the form of ultrafine nanoparticles, as an anode material for Na-ion rechargeable batteries. NiTiO3 was prepared using a simple and economical hydrothermal process, and the ultrafine nanoparticles exhibited a high reversible capacity and an excellent cycling performance.


2020 ◽  
Vol 12 (8) ◽  
pp. 9322-9331 ◽  
Author(s):  
Mitsunori Kitta ◽  
Toshikatsu Kojima ◽  
Riki Kataoka ◽  
Koji Yazawa ◽  
Kohei Tada

2017 ◽  
Vol 7 (19) ◽  
Author(s):  
Shi Nee Lou ◽  
Neeraj Sharma ◽  
Damian Goonetilleke ◽  
Wibawa Hendra Saputera ◽  
Thomas M. Leoni ◽  
...  

2017 ◽  
Vol 7 (19) ◽  
pp. 1700545 ◽  
Author(s):  
Shi Nee Lou ◽  
Neeraj Sharma ◽  
Damian Goonetilleke ◽  
Wibawa Hendra Saputera ◽  
Thomas M. Leoni ◽  
...  
Keyword(s):  

2016 ◽  
Vol 329 ◽  
pp. 428-431 ◽  
Author(s):  
Hiroyuki Usui ◽  
Yasuhiro Domi ◽  
Masahiro Shimizu ◽  
Akinobu Imoto ◽  
Kazuki Yamaguchi ◽  
...  

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