TY - JOUR
T1 - Encapsulating Mobile Proton Carriers into Structural Defects in Coordination Polymer Crystals
T2 - High Anhydrous Proton Conduction and Fuel Cell Application
AU - Inukai, Munehiro
AU - Horike, Satoshi
AU - Itakura, Tomoya
AU - Shinozaki, Ryota
AU - Ogiwara, Naoki
AU - Umeyama, Daiki
AU - Nagarkar, Sanjog
AU - Nishiyama, Yusuke
AU - Malon, Michal
AU - Hayashi, Akari
AU - Ohhara, Takashi
AU - Kiyanagi, Ryoji
AU - Kitagawa, Susumu
N1 - Funding Information:
This work was supported by the PRESTO and A-STEP of the Japan Science and Technology Agency (JST), a Grant-in-Aid for Scientific Research on the Innovative Areas: Fusion Materials, Grant-in-Aid for Young Scientists (A), Grant-in- Aid for Young Scientists (B), and Grant-in-Aid for Challenging Exploratory Research from the Ministry of Education, Culture, Sports, Science and Technology, Japan. The neutron diffraction measurements were performed as a general proposal of MLF/JPARC (no. 2012B0259).
Publisher Copyright:
© 2016 American Chemical Society.
PY - 2016/7/13
Y1 - 2016/7/13
N2 - We describe the encapsulation of mobile proton carriers into defect sites in nonporous coordination polymers (CPs). The proton carriers were encapsulated with high mobility and provided high proton conductivity at 150 °C under anhydrous conditions. The high proton conductivity and nonporous nature of the CP allowed its application as an electrolyte in a fuel cell. The defects and mobile proton carriers were investigated using solid-state NMR, XAFS, XRD, and ICP-AES/EA. On the basis of these analyses, we concluded that the defect sites provide space for mobile uncoordinated H3PO4, H2PO4-, and H2O. These mobile carriers play a key role in expanding the proton-hopping path and promoting the mobility of protons in the coordination framework, leading to high proton conductivity and fuel cell power generation.
AB - We describe the encapsulation of mobile proton carriers into defect sites in nonporous coordination polymers (CPs). The proton carriers were encapsulated with high mobility and provided high proton conductivity at 150 °C under anhydrous conditions. The high proton conductivity and nonporous nature of the CP allowed its application as an electrolyte in a fuel cell. The defects and mobile proton carriers were investigated using solid-state NMR, XAFS, XRD, and ICP-AES/EA. On the basis of these analyses, we concluded that the defect sites provide space for mobile uncoordinated H3PO4, H2PO4-, and H2O. These mobile carriers play a key role in expanding the proton-hopping path and promoting the mobility of protons in the coordination framework, leading to high proton conductivity and fuel cell power generation.
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U2 - 10.1021/jacs.6b03625
DO - 10.1021/jacs.6b03625
M3 - Article
AN - SCOPUS:84978718171
VL - 138
SP - 8505
EP - 8511
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
SN - 0002-7863
IS - 27
ER -