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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)
KeywordCobalt(Ii)Phthalocyanine Cobalt(Ii)Tetramethoxyphenylporphyrin Molar Heat Capacity Tg Tmdsc
Source PublicationJOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
2008-03-01
Volume91Issue:3Pages:841-848
Indexed BySCI
SubtypeArticle
Department15
Funding Project1504
Contribution Rank1;1
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Analytical ; Chemistry, Physical
WOS Research AreaChemistry
WOS KeywordDIFFERENTIAL SCANNING CALORIMETRY ; ELECTROCATALYTIC ACTIVITY ; MODULATED DSC ; THIN-FILM ; PHTHALOCYANINES ; METALLOPHTHALOCYANINES ; ELECTRODES ; REDUCTION ; ELECTROCHROMISM ; PORPHYRINS
AbstractThe 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.
Language英语
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WOS IDWOS:000254522500025
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Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/100063
Collection中国科学院大连化学物理研究所
Corresponding AuthorSun LX(孙立贤); Sun LX(孙立贤)
Affiliation1.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
GB/T 7714
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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