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Heat capacities and thermodynamic properties of CoPc and CoTMPP
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; Sun LX(孙立贤); Sun LX(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
2008-03-01
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
关键词[WOS]DIFFERENTIAL SCANNING CALORIMETRY ; ELECTROCATALYTIC ACTIVITY ; MODULATED DSC ; THIN-FILM ; PHTHALOCYANINES ; METALLOPHTHALOCYANINES ; ELECTRODES ; REDUCTION ; ELECTROCHROMISM ; PORPHYRINS
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.
语种英语
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WOS记录号WOS:000254522500025
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/100063
专题中国科学院大连化学物理研究所
通讯作者Sun LX(孙立贤); Sun LX(孙立贤)
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
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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.
APA Qiu, S. J..,Chu, H. L..,Zhang, J..,Qi, Y. N..,Sun, L. X..,...&孙立贤.(2008).Heat capacities and thermodynamic properties of CoPc and CoTMPP.JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,91(3),841-848.
MLA Qiu, S. J.,et al."Heat capacities and thermodynamic properties of CoPc and CoTMPP".JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 91.3(2008):841-848.
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