Research Article
Theoretical Study on Solubility from Pt Electrocatalyst and Reactivity in Electrolyte Environment of Pt Complex in PEFC
Table 5
Desorption energy () of Pt(IV) complexes from Pt surface with various dielectric constants. Unit is kJ/mol.
| | | 5.0 | 20.0 | 61.0 |
| | () [Pt(H2O)6]4+ | 58.2 | 138.5 | 177.9 | | () [Pt(H2O)5(OH)]3+ | 51.1 | 144.0 | 154.8 | | () [Pt(H2O)4(OH)2]2+ | 47.3 | 97.1 | 114.2 | | () [Pt(H2O)3(OH)3]+ | 2.9 | 30.1 | 50.6 | | () [Pt(H2O)2(OH)4] | −69.1 | −64.0 | −60.7 | | () [Pt(H2O)5(CF3SO3)]3+ | 72.0 | 191.7 | 216.8 | | () [Pt(H2O)4(CF3SO3)2]2+ | 110.1 | 194.2 | 225.2 | | () [Pt(H2O)3(CF3SO3)3]+ | 215.5 | 221.8 | 241.1 | | () [Pt(H2O)2(CF3SO3)4] | 185.8 | 236.5 | 240.6 | | () [Pt(H2O)4(OH)(CF3SO3)]2+ | 126.8 | 158.6 | 169.1 | | () [Pt(H2O)3(OH)2(CF3SO3)]+ | 125.1 | 174.1 | 187.9 | | () [Pt(H2O)2(OH)3(CF3SO3)] | −72.4 | −69.5 | −67.8 | | () [Pt(H2O)3(OH)(CF3SO3)2]+ | 114.3 | 183.3 | 201.7 | | () [Pt(H2O)2(OH)2(CF3SO3)2] | 76.2 | 110.1 | 106.3 | | () [Pt(H2O)2(OH)(CF3SO3)3] | 165.3 | 189.6 | 227.2 |
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