pH-Dependent Proton Conducting Behavior in a Metal-Organic Framework Material

被引：198

作者：

Phang, Won Ju ^{[1
]}

Lee, Woo Ram ^{[1
]}

Yoo, Kicheon ^{[2
]}

Ryu, Dae Won ^{[1
]}

Kim, BongSoo ^{[2
]}

Hong, Chang Seop ^{[1
]}

机构：

[1] Korea Univ, Dept Chem, Seoul 136713, South Korea

[2] Korea Inst Sci & Technol, Photoelect Hybrids Res Ctr, Seoul 136791, South Korea

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2014年 / 53卷 / 32期

关键词：

metal-organic frameworks; proton conducting materials; protonated water clusters; COORDINATION POLYMER; TRANSPORT;

D O I：

10.1002/anie.201404164

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A porous metal-organic framework (MOF), [Ni-2-(dobdc)(H2O)2]center dot 6H(2)O (Ni-2(dobdc) or Ni-MOF-74; dobdc(4) = 2,5-dioxido-1,4-benzenedicarboxylate) with hexagonal channels was synthesized using a microwave-assisted solvothermal reaction. Soaking Ni-2(dobdc) in sulfuric acid solutions at different pH values afforded new proton-conducting frameworks, H@Ni-2(dobdc). At pH 1.8, the acidified MOF shows proton conductivity of 2.2 x 10(-2) S cm(-1) at 80 degrees C and 95% relative humidity (RH), approaching the highest values reported for MOFs. Proton conduction occurs via the Grotthuss mechanism with a significantly low activation energy as compared to other proton-conducting MOFs. Protonated water clusters within the pores of H@Ni-2(dobdc) play an important role in the conduction process.

引用

收藏

页码：8383 / 8387

页数：5

相关论文

共 45 条

[21] Special pair dance and partner selection: Elementary steps in proton transport in liquid water [J].

Markovitch, Omer ;

Chen, Hanning ;

Izvekov, Sergei ;

Paesani, Francesco ;

Voth, Gregory A. ;

Agmon, Noam .

JOURNAL OF PHYSICAL CHEMISTRY B, 2008, 112 (31) :9456-9466

[22] Structure and energetics of the hydronium hydration shells [J].

Markovitch, Omer ;

Agmon, Noam .

JOURNAL OF PHYSICAL CHEMISTRY A, 2007, 111 (12) :2253-2256

[23] The nature of the hydrated excess proton in water [J].

Marx, D ;

Tuckerman, ME ;

Hutter, J ;

Parrinello, M .

NATURE, 1999, 397 (6720) :601-604

[24] Two-in-One: Inherent Anhydrous and Water-Assisted High Proton Conduction in a 3D Metal-Organic Framework [J].

Nagarkar, Sanjog S. ;

Unni, Sreekuttan M. ;

Sharma, Amitosh ;

Kurungot, Sreekumar ;

Ghosh, Sujit K. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2014, 53 (10) :2638-2642

[25] STRETCHING FREQUENCIES AS A FUNCTION OF DISTANCES IN HYDROGEN BONDS [J].

NAKAMOTO, K ;

MARGOSHES, M ;

RUNDLE, RE .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1955, 77 (24) :6480-6486

[26] Proton-Conductive Magnetic Metal-Organic Frameworks, {NR3(CH2COOH)}[MaIIMbIII(ox)3]: Effect of Carboxyl Residue upon Proton Conduction [J].

Okawa, Hisashi ;

Sadakiyo, Masaaki ;

Yamada, Teppei ;

Maesato, Mitsuhiko ;

Ohba, Masaaki ;

Kitagawa, Hiroshi .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2013, 135 (06) :2256-2262

[27] Structural isomerism leading to variable proton conductivity in indium(III) isophthalic acid based frameworks [J].

Panda, Tamas ;

Kundu, Tanay ;

Banerjee, Rahul .

CHEMICAL COMMUNICATIONS, 2013, 49 (55) :6197-6199

[28] Self-assembled one dimensional functionalized metal-organic nanotubes (MONTs) for proton conduction [J].

Panda, Tamas ;

Kundu, Tanay ;

Banerjee, Rahul .

CHEMICAL COMMUNICATIONS, 2012, 48 (44) :5464-5466

[29] High Proton Conduction in a Chiral Ferromagnetic Metal-Organic Quartz-like Framework [J].

Pardo, Emilio ;

Train, Cyrille ;

Gontard, Geoffrey ;

Boubekeur, Kamal ;

Fabelo, Oscar ;

Liu, Hongbo ;

Dkhil, Brahim ;

Lloret, Francesc ;

Nakagawa, Kosuke ;

Tokoro, Hiroko ;

Ohkoshi, Shin-ichi ;

Verdaguer, Michel .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (39) :15328-15331

[30] Imparting High Proton Conductivity to a Metal-Organic Framework Material by Controlled Acid Impregnation [J].

Ponomareva, Valentina G. ;

Kovalenko, Konstantin A. ;

Chupakhin, Alexei P. ;

Dybtsev, Danil N. ;

Shutova, Elena S. ;

Fedin, Vladimir P. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2012, 134 (38) :15640-15643

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