PHOTOCATALYTIC SPLITTING OF WATER - INCREASE IN CONVERSION AND ENERGY-STORAGE EFFICIENCY
PHOTOCATALYTIC SPLITTING OF WATER - INCREASE IN CONVERSION AND ENERGY-STORAGE EFFICIENCY
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DOI：
10.1016/1010-6030(94)03777-9
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发表时间：
1994-07-12
影响因子：
4.3
通讯作者：
VRACHNOU, E
中科院分区：
文献类型：
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作者：
KATAKIS, D;MITSOPOULOU, C;VRACHNOU, E
使用三-[1-（4-甲氧基苯基）-2-苯基-1，2-亚乙基二硫代-S，S ′]钨作为光催化剂-催化剂，在20至70 ℃的温度下，光催化分解水的产率增加了三倍以上，并且没有迹象表明在该温度下效果稳定。光的强度（在我们实验的误差范围内）没有明显的影响。可逆电子受体的性质也影响能量存储效率，例如，1，1-二苄基-4，4 ′-联吡啶鎓二氯化物的储能效率比甲基紫精高约10%。储能效率还取决于电子供体的存在;如果加入PhN，储能效率增加20%。使用乙二胺四乙酸（EDTA）的结果甚至更引人注目;有两倍的增加，但只是开始。在更长的时间里，系统是不稳定的。总体光能存储效率可高达7%，并且对进一步改进的期望非常好。
The yield of the photocatalytic splitting of water using tris-[1-(4-methoxyphenyl)-2-phenyl-1,2-ethylenodithiolenic-S,S']tungsten as a photocatalyst-catalyst increases by more than threefold on going from 20 to 70-degrees-C, and there is no indication that the effect levels off at this temperature. The intensity of light (within the error limits of our experiments) does not have an appreciable effect. The nature of the reversible electron acceptor also influences the energy storage efficiency, eg. 1,1-dibenzyl-4,4'-bipyridiniumdichloride gives an energy storage efficiency approximately 10% higher than methylviologen. The energy storage efficiency also depends on the presence of electron donors; if PhN is added, the energy storage efficiency increases by 20%. With ethylenediaminetetraacetic acid (EDTA) the results are even more spectacular; there is a twofold increase, but only initially. At longer times the system is unstable. Overall light energy storage efficiencies can be as high as 7%, and the expectations for further improvement are very good.