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题名: Heat capacities and thermodynamic properties of CoPc and CoTMPP
作者: Qiu, S. J.1, 2;  Chu, H. L.1, 2;  Zhang, J.1, 2;  Qi, Y. N.1, 2;  Sun, L. X.1;  Xu, F.1
通讯作者: 孙立贤
关键词: cobalt(II)phthalocyanine ;  cobalt(II)tetramethoxyphenylporphyrin ;  molar heat capacity ;  TG ;  TMDSC
刊名: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
发表日期: 2008-03-01
卷: 91, 期:3, 页:841-848
收录类别: SCI
文章类型: Article
部门归属: 15
项目归属: 1504
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical ;  Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: The low-temperature molar heat capacities of CoPc and CoTMPP were measured by temperature modulated differential scanning calorimetry (TMDSC) over the temperature range from 223 to 413 K for the first time. No phase transition or thermal anomaly was observed in the experimental temperature range for CoPc. However, a structural change was found to be nonreversible for CoTMPP in the temperature range of 368-403 K, which was further validated by the results of IR and XRD. The molar enthalpy Delta H-m and entropy AS, of phase transition of the CoTMPP were determined to be 3.301 kJ mol(-1) and 8.596 J K-1 mol(-1), respectively. The thermodynamic parameters of CoPc and CoTMPP such as entropy and enthalpy relative to reference temperature 298.15 K were derived based on the above molar heat capacity data. Moreover, the thermal stability of these two compounds was further investigated through TG measurements. Three steps of mass loss were observed in the TG curve for CoPc and five steps for CoTMPP.
关键词[WOS]: DIFFERENTIAL SCANNING CALORIMETRY ;  ELECTROCATALYTIC ACTIVITY ;  MODULATED DSC ;  THIN-FILM ;  PHTHALOCYANINES ;  METALLOPHTHALOCYANINES ;  ELECTRODES ;  REDUCTION ;  ELECTROCHROMISM ;  PORPHYRINS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000254522500025
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/100063
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Mat & Thermochem Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

Recommended Citation:
Qiu, S. J.,Chu, H. L.,Zhang, J.,et al. Heat capacities and thermodynamic properties of CoPc and CoTMPP[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2008,91(3):841-848.
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