MING-CHANG LULu M.-C.Satyanarayana S.Karnik R.Majumdar A.Wang C.-C.2019-09-102019-09-10200609601317https://scholars.lib.ntu.edu.tw/handle/123456789/424533This study conducts an analytical and experimental investigation associated with energy transfer by using a nano-porous membrane. The calculated results indicate that the streaming potential held at a saturated value when the electrolyte concentration is below a certain critical value. After passing this threshold value, the streaming potential decays dramatically with the electrolyte concentration. The efficiency increased with an increase of surface charge density and with a decrease of concentration. Generally, higher maximum efficiency can be achieved at a smaller channel. However, as the pore diameter is varied, a maximum efficiency is encountered. The results indicate that the battery performance can be efficiently improved by the unipolar characteristic inside the nano-sized channel. Our experimental results verify the analytical results; the best efficiency obtained is 0.77% in our experiments at a nominal 200 nm pore size alumina membrane having a 2.1 cm diameter and a 60 £hm thickness. The maximum output energy is 18 £hW by using a nominal 20 nm pore size alumina membrane. ? 2006 IOP Publishing Ltd.journal article10.1088/0960-1317/16/4/0012-s2.0-33645052985https://www.scopus.com/inward/record.uri?eid=2-s2.0-33645052985&doi=10.1088%2f0960-1317%2f16%2f4%2f001&partnerID=40&md5=20c9b69d01608be7469c3df61c3b5ba3