金红石
锰
材料科学
结晶学
兴奋剂
晶体结构
电化学
带隙
相(物质)
菲咯啉
无机化学
电极
化学
物理化学
冶金
有机化学
光电子学
作者
Ning Li,Peter D. Matthews,Jane J. Leung,Timothy C. King,Paul T. Wood,He‐Kuan Luo,Dominic S. Wright
出处
期刊:Dalton Transactions
[The Royal Society of Chemistry]
日期:2015-01-01
卷期号:44 (44): 19090-19096
被引量:24
摘要
The novel heterometallic polyoxotitanate cage [Ti18MnO30(OEt)20(MnPhen)3] (1), obtained by solvothermal reaction of Ti(OEt)4 with Mn(AcO)3·(H2O)2 and 1,10-phenanthroline (Phen) in EtOH, has a C3 symmetric core structure containing an interstitial tetrahedral Mn(II) ion and is surrounded by three Mn(II)(Phen) fragments. The molecular structure is retained in thin film electrodes of 1 deposited by solution drop-casting onto fluorinated tin oxide (FTO). Both solid state and solution phase electrochemical measurements show dual redox couples, consistent with the two distinct Mn coordination environments in the cage structure. Sintering of 1 in air at 600 °C produces a black crystalline solid which consists of Mn-doped TiO2 (mainly in the rutile phase) together with α-Mn2O3. Such a composite semiconductor has an optical band gap of ca. 1.80 eV, similar to that of α-Mn2O3.
科研通智能强力驱动
Strongly Powered by AbleSci AI