“…The past decade has witnessed an explosive growth of highly efficient energy conversion systems independent of fossil fuels, which is becoming extremely urgent regarding the greenhouse effect, environmental issues, and energy crisis. 1 More recently, quantities of novel energy conversion systems have been put forward, [2][3][4] for example, salinity gradient energy conversion, 5 solar cells, 6 water energy harvesting, 7 wind energy conversion, 8 etc. In particular, a generator relying on nanochannels is capable of sustaining a stable electric power output driven by low-grade heat, which is widely distributed and abundant.…”