PROBLEM TO BE SOLVED: To provide a water-vapor electrolytic hydrogenation apparatus that is more practical.;SOLUTION: A water-vapor electrolytic hydrogenation apparatus 100 includes: an anode 102 comprising catalyst for oxidizing hydrogen in the water-containing gas; a cathode 103 comprising hydrogenation catalyst; and a proton conductor 101 disposed between the anode and the cathode. The proton conductor has a perovskite crystal structure represented by composition formula AaB1-xB'xO3-δ, and in which the element A is an alkali earth metal and is contained by a value of a representing the composition ratio of the element, in a range of 0.4a0.9, and the element B' is an element of tri-valent group 3 or group 13, and is contained by a value of x representing the composition ratio of the element, in a range of 0.2x0.6.;COPYRIGHT: (C)2015,JPO&INPIT
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机译：解决的问题：提供一种更实用的水蒸气电解氢化装置。解决方案：水蒸气电解氢化装置100包括：阳极102，所述阳极102包含用于使含水气体中的氢氧化的催化剂;以及阳极102。阴极103，其包含氢化催化剂;质子导体101设置在阳极和阴极之间。质子导体具有由组成式A a B 1-x B' x O 3-δ< / Sub>，其中元素A是碱土金属并且由代表元素的组成比的a的值包含在0.4 <0.9的范围内，并且元素B'是三价基团3或基团13，并由代表元素组成比的x值所包含，范围为0.2 展开▼
