Hollow anatase TiO<sub>2</sub> nanoparticles with excellent catalytic activity for dichloromethane combustion
作者:Haifeng Huang、Xixiong Zhang、Xiaojia Jiang、Kang Dou、Zhiyi Ni、Hanfeng Lu
DOI:10.1039/c6ra06400k
日期:——
Hollow anatase TiO2 nanoparticles around 11.4 nm in size were prepared by a CTAB-assisted hydrothermal method. The catalyst showed high catalytic activity for dichloromethane (DCM) combustion with 90% DCM conversion at 201 °C.
by increasing the hole trap concentration, whereas the selectivity values increased slightly. The selectivity towards the corresponding aldehyde after 30% of alcohol conversion was significantly higher for 4-HBA (48%) than for 2-HBA (32%), due to the role of the para position of the substituent group. In order to clarify the different selectivity of the products, various experiments have been also performed
在环境友好的条件下,在 UVA 照射下,在家庭制备和商业化的 TiO 2 (Merck 和 Aeroxide P25) 样品存在下,研究了水杨醇(2-羟基苯甲醇)在水中部分光催化氧化成水杨醛。通过使用 BET、XRD、SEM 和/或 TEM 技术对光催化剂进行了表征。研究了结晶度、pH (3-11) 和空穴陷阱(乙醇)的存在对光催化活性和产物选择性的影响。4-羟基苯甲醇也用于研究芳环中取代基位置的影响。使用结晶良好的 TiO 2在 pH=11 时获得了高醇转化率和产物选择性值样品。通过增加空穴陷阱浓度,转化率显着降低,而选择性值略有增加。由于取代基对位的作用,4-HBA (48%) 的醇转化率在 30% 后对相应醛的选择性显着高于 2-HBA (32%)。为了阐明产品的不同选择性,也从产品开始进行了各种实验;这些结果表明选择性也强烈依赖于所用实验条件下形成的产物的稳定性。最后,本文报告了所研究反应的转化率和选择性值取决于
FORMULATIONS OF METAL AND ASCORBIC ACID COMPLEXES, THEIR OBTAINING AND USE
申请人:INTERMAG SP. Z O.O.
公开号:US20210076681A1
公开(公告)日:2021-03-18
The object of the invention is a formulation of metal and ascorbic acid complexes of the general formula MO(OH)
z
(Asc)
x
.yH
2
O, in a solid form, where: M is a metal that is titanium or vanadium; Asc represents C
6
H
7
O
6
; x is an integer from 1 to 4; y is an integer from 0 to 5; z is 0 or 1; molar ratio of M to Asc is from 1:1 to 1:4, with one or more agriculturally acceptable substances selected from excipients, carriers, other active agents. The object of the invention is also a method for obtaining these formulations and the use thereof. The object of the invention is also the use of the complex as described above, for the preparation of formulations used in the cultivation of plants.
Structure of a Hydrated Sulfonatotitanyl(IV) Complex in Aqueous Solution and the Dimethylsulfoxide Solvated Titanyl(IV) Ion in Solution and Solid State
作者:Daniel Lundberg、Ingmar Persson
DOI:10.1007/s10953-017-0581-3
日期:2017.2
coordination chemistry of oxotitanium(IV) or titanyl(IV), TiO2+, has been studied in solution by X-ray methods. The titanyl(IV) ion hydrolyzes easily in aqueous systems to solid titanium dioxide as long as it is not stabilized through complexation. In this study the structures of the hydrated bissulfatotitanyl(IV) complex and the dimethylsulfoxide (DMSO) solvated titanyl(IV) ions have been determined
Titanium pyrophosphate hexagonal nanoplates for electrochemical lithium storage
作者:Chao Lai、Wenge Wang、JinJin Gao、Yonglong Wang、Shihai Ye、Liang Li、Chao Wang
DOI:10.1039/c3ra41806e
日期:——
Titanium pyrophosphate hexagonal nanoplates were synthesized via facile hydrothermal reaction followed by a calcination procedure. As new cathode materials for lithium-ion batteries, they demonstrate stable cycle performance and high capacity retention at various current densities.