A Streaming Potential/Current‐Based Microfluidic Direct Current Generator for Self‐Powered Nanosystems

作者：Rui Zhang, Sihong Wang, Min‐Hsin Yeh, Caofeng Pan, Long Lin, Ruomeng Yu, Yan Zhang, Li Zheng, Zongxia Jiao, Zhong Lin Wang · 发表于：Advanced Materials · 年份：2015 · DOI：10.1002/adma.201502477 · 被引用次数：141 · 研究领域：Advanced Sensor and Energy Harvesting Materials、Electrowetting and Microfluidic Technologies、Nanopore and Nanochannel Transport Studies

A simple but practical method to convert the hydroenergy of microfluids into continuous electrical output is reported. Based on the principle of streaming potential/current, a microfluidic generator (MFG) is demonstrated using patterned micropillar arrays as a quasi-porous flow channel. The continuous electrical output makes this MFG particularly suitable as a power source in self-powered systems. Using the proposed MFG to power a single nanowire-based pH sensor, a self-powered fluid sensor system is demonstrated.