Surprising acidity of hydrated lithium cations in organic solvents

被引:22
作者
Deng, Haiqiang [1 ]
Peljo, Pekka [1 ,2 ]
Stockmann, T. Jane [1 ]
Qiao, Liang [1 ]
Vainikka, Tuomas [2 ]
Kontturi, Kyoesti [2 ]
Opallo, Marcin [3 ]
Girault, Hubert H. [1 ]
机构
[1] Ecole Polytech Fed Lausanne, Lab Electrochim Phys & Analyt, CH-1015 Lausanne, Switzerland
[2] Aalto Univ, Dept Chem, Aalto 00076, Finland
[3] Polish Acad Sci, Inst Phys Chem, PL-01224 Warsaw, Poland
关键词
LIQUID-LIQUID INTERFACES; OXYGEN REDUCTION; HYDROGEN EVOLUTION; LIQUID/LIQUID INTERFACES; ION TRANSFER; PROTON-TRANSFER; DECAMETHYLFERROCENE; CATALYSTS; ENERGY; WATER;
D O I
10.1039/c4cc01892c
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Lithium cations are shown to have a significant role in catalyzing oxygen and proton reduction along with S(N)1 reactions in biphasic systems. We propose that this catalytic effect is due to the surprising acidity of the hydrated cations; interactions between the cation and its surrounding solvation shell will make the constituent water molecules more acidic.
引用
收藏
页码:5554 / 5557
页数:4
相关论文
共 37 条
[31]   H2O2 generation by decamethylferrocene at a liquid | liquid interface [J].
Su, Bin ;
Nia, Raheleh Partovi ;
Li, Fei ;
Hojeij, Mohamad ;
Prudent, Michel ;
Corminboeuf, Clemence ;
Samec, Zdenek ;
Girault, Hubert H. .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (25) :4675-4678
[32]   Oxygen and proton reduction by decamethylferrocene in non-aqueous acidic media [J].
Su, Bin ;
Hatay, Imren ;
Ge, Pei Yu ;
Mendez, Manuel ;
Corminboeuf, Clemence ;
Samec, Zdenek ;
Ersoz, Mustafa ;
Girault, Hubert H. .
CHEMICAL COMMUNICATIONS, 2010, 46 (17) :2918-2919
[33]   Oxygen reduction by decamethylferrocene at liquid/liquid interfaces catalyzed by dodecylaniline [J].
Su, Bin ;
Hatay, Imren ;
Li, Fei ;
Partovi-Nia, Raheleh ;
Mendez, Manuel A. ;
Samec, Zdenek ;
Ersoz, Mustafa ;
Girault, Hubert H. .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2010, 639 (1-2) :102-108
[34]   Role of trace amounts of water in transfers of hydrophilic and hydrophobic ions to low-polarity organic solvents [J].
Sun, Peng ;
Laforge, Francois O. ;
Mirkin, Michael V. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (41) :12410-+
[35]   Mechanistic model of the oxygen reduction catalyzed by a metal-free porphyrin in one- and two-phase liquid systems [J].
Trojanek, Antonin ;
Langmaier, Jan ;
Zalis, Stanislav ;
Samec, Zdenek .
ELECTROCHIMICA ACTA, 2013, 110 :816-821
[36]   Thermodynamic driving force effects in the oxygen reduction catalyzed by a metal-free porphyrin [J].
Trojanek, Antonin ;
Langmaier, Jan ;
Samec, Zdenek .
ELECTROCHIMICA ACTA, 2012, 82 :457-462
[37]   Electrochemical evidence of catalysis of oxygen reduction at the polarized liquid-liquid interface by tetraphenylporphyrin monoacid and diacid [J].
Trojanek, Antonin ;
Langmaier, Jan ;
Su, Bin ;
Girault, Hubert H. ;
Samec, Zdenek .
ELECTROCHEMISTRY COMMUNICATIONS, 2009, 11 (10) :1940-1943