Abstract
This paper reports rich proton conductivity in space around 10-1000 nm (called extended-nanospace) fabricated on a quartz glass substrate. We investigated the relationship between proton diffusion coefficient and scale of extended-nanochannel. By visualization of proton diffusion in extended-nanochannels utilizing fluorescent probe that changes fluorescent intensity corresponding to liquid pH, we verified the enhancement of proton diffusion coefficient in extended-nanochannel with scaling-down of channel space. This study suggests that extended-nanochannel is applied to novel proton conductor. Furthermore, it should lead to development of new micro fuel cell (MFC) that whole electric generation system is integrated within a quartz glass substrate.