Heat capacity and thermodynamic functions of TiO2(B) nanowires
文献类型：期刊论文
| 作者 | Feng, Tao; Li, Liping; Shi, Quan1; Che, Xiangli2; Xu, Xingliang; Li, Guangshe |
| 刊名 | JOURNAL OF CHEMICAL THERMODYNAMICS
 |
| 出版日期 | 2018 |
| 卷号 | 119页码:127 |
| 关键词 | TiO2(B) Heat capacity Thermodynamic properties PPMS |
| ISSN号 | 0021-9614 |
| DOI | 10.1016/j.jct.2017.12.016 |
| 英文摘要 | Heat capacities of TiO2(B), 50 nm in diameter and several micrometers in length, containing given amounts of anatase were measured using a Quantum Design Physical Property Measurement System (PPMS) over a temperature range from 1.9 to 302 K. After eliminating the contribution from anatase, the heat capacities for TiO2(B) were fitted to a theoretical model in the low temperature range (T < 9 K), orthogonal polynomials in the middle temperature range (9 < T < 65 K), and a combination of Debye and Einstein functions in the high temperature range (T > 65 K). The standard molar heat capacity, molar entropy, and molar enthalpy for TiO2(B) at T = 298.15 K were determined to be (58.18 +/- 0.81) J.K-1.mol(-1), (52.31 +/- 0.69) J.K-1.mol(-1), and (9.03 +/- 0.12) kJ.mol(-1), respectively, leading to a Gibbs free energy of -(6.56 +/- 0.09) kJ.mol(-1). The heat capacity of TiO2(B) is found to be similar to brookite, but significantly higher than those of anatase and rutile when temperature is above 200 K. (C) 2018 Elsevier Ltd. |
| 学科主题 | Thermodynamics ; Chemistry, Physical |
| WOS记录号 | WOS:000425191700013 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| 资助机构 | This work was financially supported by NSFC 21671077, 21771171, 21571176, 21611530688, and 21025104. ; This work was financially supported by NSFC 21671077, 21771171, 21571176, 21611530688, and 21025104. |
| 源URL | [http://ir.sic.ac.cn/handle/331005/25062]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Jilin, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Thermochem Lab,Liaoning Prov Key Lab Thermochem E, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng, Tao,Li, Liping,Shi, Quan,et al. Heat capacity and thermodynamic functions of TiO2(B) nanowires[J]. JOURNAL OF CHEMICAL THERMODYNAMICS,2018,119:127, 134. |
| APA | Feng, Tao,Li, Liping,Shi, Quan,Che, Xiangli,Xu, Xingliang,&Li, Guangshe.(2018).Heat capacity and thermodynamic functions of TiO2(B) nanowires.JOURNAL OF CHEMICAL THERMODYNAMICS,119,127. |
| MLA | Feng, Tao,et al."Heat capacity and thermodynamic functions of TiO2(B) nanowires".JOURNAL OF CHEMICAL THERMODYNAMICS 119(2018):127. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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