【作者】 程新新； 李瑞军； 樊耀亭；

【Author】 Xinxin Cheng;Ruijun L.;Yaoting F.;College of Chemistry and Molecular Engineering,University of Zhengzhou;

【机构】 郑州大学化学与分子工程学院；

【摘要】 利用太阳能光解水制氢被认为是一种在未来最具有发展潜力的获取清洁能源的途径之一。[1]传统的太阳能制氢催化剂多数为铂,钌,钯等贵金属,极大的增加了应用的成本。[2,3]最近,基于非贵金属(例如:铁、钴、镍等)和有机光敏染料构建的均相光致产氢体系及其高的产氢活性已引起人们极大关注。[4]基于此,我们构建了基于非贵金属钴配合物为催化剂,以有机染料曙红Y(EY2-)为光敏剂,三乙胺(TEA)为电子给体的均相光致产氢体系。通过对一系列产氢条件的优化,在最佳条件下([Cat.]2×10-5M、EY2-1×10-4M、10%TEA,v/v、pH=10.0、MeCN/H2O=1:1,v/v),300W氙灯照射3小时后(λ>420nm),体系相对于催化剂的TON可以达到352。更多还原

【Abstract】 Visible light-driven water splitting into H2 is one of the most promising methods to generate new energy sources.[1]Previous water splitting systems are mainly based on expensive catalysts made of precious metal,such as platinum,ruthenium and palladium.[2,3] Recently,photoinduced hydrogen production with homogeneous systems based on no-noble-free metal(such as:iron,cobalt,nickel,etc.) has attracted more and more attention.[4] Herein we apply the cobalt complex as photo-catalyst in photocatalytic H2 production homogeneous system with Eosin Y dye(EY2-) as the photosensitizer,triethylamine(TEA) as electron donor.Under the optimal condition([Cat.] 2×10-5M、EY2-1 ×10-4M、10%TEA,v/v、pH=10.0、MeCN/H2O=1:1,v/v),the maximum amount of H2 generated for the cobalt complex was 352 TON(vs.catalyst) after 3 hours irradiation of visible light(λ>420nm).更多还原