Novel PEFC Application for Deuterium Isotope Separation

Novel PEFC Application for Deuterium Isotope Separation

The use of a polymer electrolyte fuel cell (PEFC) with a Nafion membrane for isotopic separation of deuterium (D) was investigated. Mass analysis at the cathode side indicated that D diffused through the membrane and participated in an isotope exchange reaction. The exchange of D with protium (H) in H₂O was facilitated by a Pt catalyst. The anodic data showed that the separation efficiency was ...

Study of Deuterium Isotope Separation by PEFC

Author(s) Shibuya, Shota; Matsushima, Hisayoshi; Ueda, Mikito Citation Journal of the electrochemical society, 163(7): F704-F707 Issue Date 2016-07-20 Doc URL http://hdl.handle.net/2115/62424 Right © The Electrochemical Society, Inc. 2016. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permi...

Isotope Effects, Isotope Separation and Isotope Fractionation

Deuterium Isotope Effects on the Silver

Solvent deuterium isotope effects support the view that the p-N02 and p-Me derivatives of benzaldehyde S.S-diethylacetal undergo silver ion-promoted hydrolysis in water by different mechanisms. scheme common [3] for O.O-acetals in the presence of H30 + ions, while for the latter we suggested a bimolecular A2-type mechanism with one (or more) water molecules in the slow phase of step (3). The co...

Isotope Effects on Deuterium Spin-Lattice Relaxation

The deuterium spin-lattice relaxation time, 7",, of H 2 0 /D 2 0 mixtures is measured at 298.2 K. The relaxation rate, Ff 1 , is found to increase with increasing deuterium atom fraction, n, the plot of T\ 1 vs. n exhibiting a small depature from linearity. A general equation Tf 1 (n) for the H 2 0 / DiO system is formulated. The temperature dependence of Tx is investigated in the temperature r...