排序方式: 共有32条查询结果,搜索用时 0 毫秒
31.
Christian Balischewski Dr. Karsten Behrens Dr. Kerstin Zehbe Dr. Christina Günter Stefan Mies Dr. Eric Sperlich Alexandra Kelling Prof. Dr. Andreas Taubert 《Chemistry (Weinheim an der Bergstrasse, Germany)》2020,26(72):17504-17513
Thirteen N-butylpyridinium salts, including three monometallic [C4Py]2[MCl4], nine bimetallic [C4Py]2[M1−xaMxbCl4] and one trimetallic compound [C4Py]2[M1−y-zaMybMzcCl4] (M=Co, Cu, Mn; x=0.25, 0.50 or 0.75 and y=z=0.33), were synthesized and their structure and thermal and electrochemical properties were studied. All compounds are ionic liquids (ILs) with melting points between 69 and 93 °C. X-ray diffraction proves that all ILs are isostructural. The conductivity at room temperature is between 10−4 and 10−8 S cm−1. Some Cu-based ILs reach conductivities of 10−2 S cm−1, which is, however, probably due to IL dec. This correlates with the optical bandgap measurements indicating the formation of large bandgap semiconductors. At elevated temperatures approaching the melting points, the conductivities reach up to 1.47×10−1 S cm−1 at 70 °C. The electrochemical stability windows of the ILs are between 2.5 and 3.0 V. 相似文献
32.