Electrokinetic Power Generation from Liquid Water Microjets
Electrokinetic Power Generation from Liquid Water Microjets
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DOI：
10.1021/jp8015276
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发表时间：
2008-10-30
影响因子：
3.7
通讯作者：
Saykally, Richard J.
中科院分区：
文献类型：
--
作者：
Duffin, Andrew M.;Saykally, Richard J.
尽管动电效应并不新鲜，但直到最近才开始研究它们在能量转换设备中的可能用途。我们最近报道了从快速流动的液态水微射流中电动产生分子氢[DUffin 等人。 J.Phys。化学。 C 2007, 111, 12031]。在这里，我们描述了使用液态水微射流将动电能直接转换为电能。先前的动电发电研究报告称，由于表面和大量液体中离子的反传导，效率较低（接近 3%）。液体微射流消除了反向传导造成的能量耗散，并且仅在射流目标处进行测量，转换效率超过 10%。
Although electrokinetic effects are not new, only recently have they been investigated for possible use in energy conversion devices. We recently reported the electrokinetic generation of molecular hydrogen from rapidly flowing liquid water microjets [DUffin et al. J. PhYs. Chem. C 2007, 111, 12031]. Here, we describe the use of liquid water microjets for direct conversion of electrokinetic energy to electrical power. Previous studies of electrokinetic power production have reported low efficiencies (similar to 3%), limited by back conduction of ions at the surface and in the bulk liquid. Liquid microjets eliminate energy dissipation due to back conduction and, measuring only at the jet target, yield conversion efficiencies exceeding 10%.