Báo cáo hóa học: " Low-temperature synthesis of CuO-interlaced nanodiscs for lithium ion battery electrodes" potx

... Combustion synthesis of high- performance Li 4 Ti 5 O 12 for secondary Li -ion battery. Ceram Int 2009, 35:1757. 6. Ferg E, Gummow RJ, de Kock A, Thackeray MM: Spinel anodes for lithium- ion batteries. ... intercalation host (smaller time constant ( τ ); τ = L 2 /2D, where D is the coupled diffusion coefficient for Li + and e − ), and better accommodation of the Li -i...

Ngày tải lên: 20/06/2014, 23:20

... the high-yield synthesis of 2-dimensional cupric oxide (CuO) nanodiscs through dehydrogenation of 1-dimensional Cu(OH) 2 nanowires at 60°C. Most of the nanodiscs had a diameter of approximately ... successful low-temperature synthesis of phase-pure 2-D CuO-interlaced nanodiscs was demon- strated using simple dehydrogenation of 1-D Cu(OH) 2 nanowires at 60°C in soluti...

Ngày tải lên: 21/06/2014, 03:20

... large amount of reaction products. Abbreviations EC: ethylene carbonate; FE-SEM: field-emission scanning electron microscopy; FE-TEM: field-emission transmission electron microscopy; LiTFSI: lithium ... catalyst for the air electrode of a Li/air battery. The shape and size of the nanoparticles are observed using scanning electron microscopy and transmission electron microscopy anal...

Ngày tải lên: 21/06/2014, 17:20

... The formation of nanowires was generally facilitated when the concentration of hydroxide was drop to 1 M. In this case, however, higher hydroxide concentration resulted in the formation of flower-like ... might stem from the formation of a SEI film (solid electrolyte interface) on the surface of the nanowires, consuming irreversibly a certain amount of Li-ions. The Li -ion intercal...

Ngày tải lên: 21/06/2014, 08:20

... solu- tion for AZO nanostructure growth was an aqueous solution of 0.025 M Zn(NO 3 ) 2 ·6H 2 OandHMT.The reaction was kept at 100°C for 1 h, and the ZnO nano- flakes (NFs) exhibited a length of approximately ... an Al concentration of 4 mM solution. Scale bar, 300 nm. (c) The EDS spectrum of AZO nanostructure array sample fabricated on the FTO substrate in an Al concentration of...

Ngày tải lên: 20/06/2014, 22:20

... composed of nanoflakes have been reported to be easily produced in a hydrothermal reaction of KMnO 4 solution without CNTs [24, 25]. The formation of MnO 2 in such hydrothermal reaction is ... decorated on the surface of CNT is able to facilitate the penetration of the electrolyte, leading to fast diffusion of the electrolyte into the pores of the MnO 2 layer. For the p...

Ngày tải lên: 20/06/2014, 23:20

... nonlinear optics [2,3]. For the existence of the size effect of ferroelectricity and the potential application of bottom-up assembled novel nanostructures, the synthesis of ultrafine BaTiO 3 nano- particles ... thermal decomposition of a citrate precursor under sample controlled reaction temperature conditions. J Mater Chem 2003, 13:2234. 7. O’Brien S, Brus L, Murray CB: Synthe...

Ngày tải lên: 21/06/2014, 01:20

... N-chelation. The diffusion of Bi 3+ ions in DMF- dimethylamine will be faster due to its lower viscosity, which is ben eficial for the formation of nanotube pro- ducts [49]. The formation mechanism ... abstraction of hydrogen atoms from the polymer by the Bi 3+ ions; (2) reduction of the Bi 3+ ions by the organic radicals formed in (1) or during the bismuth-accelerated degrad ation...

Ngày tải lên: 21/06/2014, 06:20

... typical reaction time of 10 min for each deposi- tion. After depos ition, the furnace was switch off and allowed to cool down to room temperature under Ar gas flow. A uniform black deposition on the ... wall of the quartz tube at the reaction hot zone was observed. The black deposition in the form of carbon soot was taken out from quartz tube. The schematic experimental setup for s...

Ngày tải lên: 21/06/2014, 06:20

... hexane. Synthesis of InP/ZnS For in situ fabrication of InP/ZnS core-shell NQDs, the temperature of the growth solution of InP was lowered after a 10-min growth to 200°C. Thirty milligrams of ZDC, ... reaction generated nanocrystals without any distinguishable absorption peak, implying a broad size distribution. This result indicates that the ligand concentration window fo...

Ngày tải lên: 21/06/2014, 17:20