DICP OpenIR
Thermochemistry of Alkyl Pyridinium Bromide Ionic Liquids: Calorimetric Measurements and Calculations
Tong, Bo3; Liu, Qing-Shan1; Tan, Zhi-Cheng1,2; Welz-Biermann, Urs1
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY A
2010-03-25
DOI10.1021/jp9047538
Volume114Issue:11Pages:3782-3787
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Physical ; Physics, Atomic, Molecular & Chemical
WOS Research AreaChemistry ; Physics
WOS KeywordPHYSICOCHEMICAL PROPERTIES ; THERMODYNAMIC PROPERTIES ; DIRECT ELECTROCHEMISTRY ; CARBON NANOTUBES ; NATURAL POLYOLS ; HEAT-CAPACITIES ; SURFACE-TENSION ; IDENTIFICATION ; CATALYSIS ; DENSITY
AbstractTwo ionic liquids, 1-ethylpyridinium bromide (EPBr) and 1-propylpyridinium bromide (PPBr), were prepared and the structures were characterized by (1)H NMR. The thermodynamic properties of EPBr and PPBr were studied with adiabatic calorimetry (AC) and thermogravimatric analysis (TG-DTG). The beat capacity was precisely Measured ill the temperature range from 78 to 410 K by Means of a fully automated adiabatic calorimeter. For EPBr, the melting temperature, enthalpy, and entropy of solid-liquid phase transition were determined to be 391.31 +/- 0.28 K, 12.77 +/- 0.09 kJ.mol(-1), and 32.63 +/- 0.22 J.K(-1).mol(-1), respectively, and for PPBr they were 342.83 +/- 0.69 K, 10.97 +/- 0.05 kJ.mol(-1), and 32.00 +/- 0.10 J.K(-1).mol(-1), respectively. The thermodynamic functions (H(T)(0)-H(298.15)(0)) and (S(T)(0)-S(298.15)(0)) were derived from the heat capacity data in the experimental temperature range with an interval of 5 K. The thermostablility of the compounds Was further studied by TGA measurements. The phase change behavior and thermodynamic properties were compared and estimated in it series of alkyl pyridinium bromide ionic liquids. Results indicate that EPBr has higher melting and decomposition temperature. as well as phase transition enthalpy and entropy but lower heat capacity than PPBr due to their different molecular structures.
Language英语
WOS IDWOS:000275707800007
Citation statistics
Cited Times:34[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/142175
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, China Ion Liquid Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China
3.Dalian Univ Technol, Sch Chem Engn, Dept Chem, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Tong, Bo,Liu, Qing-Shan,Tan, Zhi-Cheng,et al. Thermochemistry of Alkyl Pyridinium Bromide Ionic Liquids: Calorimetric Measurements and Calculations[J]. JOURNAL OF PHYSICAL CHEMISTRY A,2010,114(11):3782-3787.
APA Tong, Bo,Liu, Qing-Shan,Tan, Zhi-Cheng,&Welz-Biermann, Urs.(2010).Thermochemistry of Alkyl Pyridinium Bromide Ionic Liquids: Calorimetric Measurements and Calculations.JOURNAL OF PHYSICAL CHEMISTRY A,114(11),3782-3787.
MLA Tong, Bo,et al."Thermochemistry of Alkyl Pyridinium Bromide Ionic Liquids: Calorimetric Measurements and Calculations".JOURNAL OF PHYSICAL CHEMISTRY A 114.11(2010):3782-3787.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Tong, Bo]'s Articles
[Liu, Qing-Shan]'s Articles
[Tan, Zhi-Cheng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Tong, Bo]'s Articles
[Liu, Qing-Shan]'s Articles
[Tan, Zhi-Cheng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Tong, Bo]'s Articles
[Liu, Qing-Shan]'s Articles
[Tan, Zhi-Cheng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.