Synthesis, crystal structure, and electrochemical properties of niobium-substituted hollandite-type titanium dioxides, K Ti1–Nb O2, with different potassium content in the tunnel space

2021 ◽  
Vol 369 ◽  
pp. 115727
Author(s):  
Norihito Kijima ◽  
Mitsumasa Sakao ◽  
Takaaki Manabe ◽  
Junji Akimoto
2011 ◽  
Vol 196 (10) ◽  
pp. 4747-4755 ◽  
Author(s):  
Gang Yang ◽  
Huan Ni ◽  
Haidong Liu ◽  
Po Gao ◽  
Hongmei Ji ◽  
...  

2007 ◽  
Vol 32 (5) ◽  
pp. 551-557 ◽  
Author(s):  
Xu-Chun Wang ◽  
Jian-Feng Li ◽  
He-Ping Chen ◽  
Jie-Ying Wu ◽  
Hong-Ping Zhou ◽  
...  

2017 ◽  
Vol 2 (6) ◽  
pp. 326-332 ◽  
Author(s):  
Yating Hu ◽  
Yu Zhang ◽  
Du Yuan ◽  
Xu Li ◽  
Yongqing Cai ◽  
...  

Mn3O4 nanofibers with a tunnel size of 1.83 Å in the crystal structure show much higher volumetric capacitance than two other morphologies/crystal structures, when using 1 M LiCl aq. as the electrolyte.


Author(s):  
Lin Chen ◽  
Gan Ren ◽  
Yakun Guo ◽  
Ge Sang

The mononuclear nickel title complex (acetonitrile-κN){N-benzyl-N,N′,N′-tris[(6-methylpyridin-2-yl)methyl]ethane-1,2-diamine}nickel(II) bis(tetrafluoridoborate), [Ni(C30H35N5)(CH3CN)](BF4)2, was prepared from the reaction of Ni(BF4)2·6H2O withN-benzyl-N,N′,N′-tris[(6-methylpyridin-2-yl)methyl]ethane-1,2-diamine (bztmpen) in acetonitrile at room temperature. With an open site occupied by the acetonitrile molecule, the nickel(II) atom is chelated by five N-atom sites from the ligand and one N atom from the ligand, showing an overall octahedral coordination environment. Compared with analogues where the 6–methyl substituent is absent, the bond length around the Ni2+cation are evidently longer. Upon reductive dissociation of the acetronitrile molecule, the title complex has an open site for a catalytic reaction. The title complex has two redox couples at −1.50 and −1.80 V (versus Fc+/0) based on nickel. The F atoms of the two BF4−counter-anions are split into two groups and the occupancy ratios refined to 0.611 (18):0.389 (18) and 0.71 (2):0.29 (2).


1998 ◽  
Vol 268 (2) ◽  
pp. 239-248 ◽  
Author(s):  
P. Kögerler ◽  
P.A.M. Williams ◽  
B.S. Parajón-Costa ◽  
E.J. Baran ◽  
L. Lezama ◽  
...  

2021 ◽  
pp. 132321
Author(s):  
Lamine Yaffa ◽  
Antoine Blaise Kama ◽  
Balla Fall ◽  
Bocar Traoré ◽  
Cheikh A.K. Diop ◽  
...  

2019 ◽  
Vol 431 ◽  
pp. 105-113 ◽  
Author(s):  
Uma Garg ◽  
William Rexhausen ◽  
Nathaniel Smith ◽  
Joshua Harris ◽  
Deyang Qu ◽  
...  

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