Improved operation of solar reactor for two-step water-splitting H2 production by ceria-coated ceramic foam device
Improved operation of solar reactor for two-step water-splitting H2 production by ceria-coated ceramic foam device
复制标题
DOI：
10.1016/j.ijhydene.2014.10.084
复制
发表时间：
2015-01-05
影响因子：
7.2
通讯作者：
Lee, H. J.
中科院分区：
文献类型：
--
作者：
Cho, H. S.;Gokon, N.;Lee, H. J.
新泻大学（日本）和韩国能源研究所（韩国）关于“利用泡沫陶瓷装置的水分解反应堆太阳能示范”的联合国际项目有两个目标。(1)利用反应性泡沫氧化铈装置开发太阳能反应器，进行高温两步热化学水分解循环。(2)使用自然太阳能驱动的40 kW（th）太阳能炉测试其在各种操作方法下的性能。由日本新泻大学开发并制备了用于两步水分解的反应性CeO 2/MPSZ（MgO部分稳定氧化锆）泡沫装置;它涉及用反应性CeO 2涂覆惰性氧化锆泡沫基质。本文以高活性的CeO 2颗粒为氧化还原材料，将其应用于CeO 2/MPSZ泡沫装置中，研究了利用太阳能制氢的方法。太阳能驱动的热化学两步水裂解循环，展示了使用40千瓦的KIER太阳能炉在韩国结合CeO 2/MPSZ泡沫装置。在泡沫装置的中心，在热还原步骤期间温度为1500摄氏度-1600摄氏度，在随后的水分解步骤期间温度为600摄氏度-1100摄氏度。氢成功地从CeO 2/MPSZ泡沫装置中产生，并且与早期研究相比，氢产生和CeO 2转化的曲线表明操作得到了明显改善。版权所有（C）2014，氢能出版物有限责任公司。由爱思唯尔有限公司出版。保留所有权利。
The joint international project between Niigata University (Japan) and the Korea Institute of Energy Research, KIER (Korea) on "Solar Demonstration of Water-Splitting Reactor using Ceramic Foam Device" has two goals. (1) Develop a solar reactor using reactive cerium oxide foam devices for high-temperature two-step thermochemical water-splitting cycle. (2) Test its performance under various operational methods using a 40 kW(th) solar furnace driven by natural solar energy. The reactive CeO2/MPSZ (MgO partially stabilized zirconia) foam device for two-step water-splitting was developed and prepared by Niigata University/Japan; it involves coating an inert zirconia foam matrix with reactive CeO2. In this paper, highly reactive CeO2 particles were used the redox material in CeO2/MPSZ foam devices to investigate the use of solar energy for hydrogen production. The solar-driven thermochemical two-step water-splitting cycle was demonstrated using the 40 kWth KIER solar furnace in Korea combined with the CeO2/MPSZ foam device. At the center of the foam device, temperatures were 1500 degrees C-1600 degrees C during the thermal reduction step and 600 degrees C-1100 degrees C during the subsequent water decomposition step. Hydrogen was successfully produced from the CeO2/MPSZ foam device, and profiles for hydrogen production and CeO2 conversion indicated definitely improved operations compared to earlier studies. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.