无机材料学报2025，Vol.40Issue(5)：489-496,中插5,9.DOI:10.15541/jim20240459
掺杂改性NaYTiO4增强固体氧化物燃料电池阳极抗硫中毒性能
Enhanced Sulfur-resistance for Solid Oxide Fuel Cells Anode via Doping Modification of NaYTiO4
摘要
Abstract
Solid oxide fuel cells(SOFCs)are highly efficient energy conversion devices.However,the sulfur poison,which deteriorates traditional Ni-based anodes,restricts commercialization of the technology.Here,layered perovskite oxide NaYTiO4 was prepared using solid-state method and modified by partial substitution with different valence ions.Properties of NaYTiO4 before and after doping were systematically studied.Ni was doped into the perovskite layer and contributed to forming NaYTi0.95Ni0.05O4,which regulated growth characteristics of the crystal and in-situ exsoluted in reduction conditions.Two-dimensional distribution of alkali metals and polar structures in the material provides advantages,including excellent chemical water absorption capacity and good sulfur-resistance.With an increased chemisorbed oxygen species of 64.5%,Ni-doped material becomes more outstanding.SOFC with NaYTi0.95Ni0.05O4 as composite anode showed superior electrocatalytic activity.The peak power density reached 183.8 mW·cm-2 at 800℃with H2 as fuel.Furthermore,the power density increased by 25.2%with an addition of 0.1%H2S in H2.The modified cell could work stably even at 700℃,a more toxic condition,for 40 h without significant poisoning effect.These results indicate that the modified layered perovskite oxides are excellent sulfur-resistance anodes.关键词
层状钙钛矿氧化物/掺杂/固体氧化物燃料电池/阳极/抗硫中毒Key words
layered perovskite oxide/doping/solid oxide fuel cell/anode/sulfur-resistance引用本文复制引用
渠吉发,王旭,张维轩,张康喆,熊永恒,谭文轶..掺杂改性NaYTiO4增强固体氧化物燃料电池阳极抗硫中毒性能[J].无机材料学报,2025,40(5):489-496,中插5,9.基金项目
国家自然科学基金(51678291) （51678291）
江苏省高等学校基础科学(自然科学)研究项目(21KJB530012,23KJA610003)National Natural Science Foundation of China(51678291) （自然科学）
Basic Science(Natural Science)Research in Higher Education in Jiangsu Province(21KJB530012,23KJA610003) （Natural Science）
