Salt concentration gradient driven nanofluid power generation device and preparation and application thereof

Abstract

The invention discloses a salt concentration gradient driven nanofluid power generation device and preparation and application thereof. The nanofluid power generation device comprises a nano-channel and a first liquid channel and a second liquid channel which are respectively located at the two ends of the nano-channel and communicated with the nano-channel, wherein the first liquid channel is used for accommodating the first liquid, and the second liquid channel is used for accommodating the second liquid. The nano-channel is used for converting chemical potential energy into electric energyby utilizing the difference in salt concentration between the first liquid and the second liquid and outputting electric energy through the cooperation of the first electrode and the second electrode.The key nano-channels and other structures cooperating with the nano-channels in the nanofluid power generation device are improved based on the specific energy conversion principle of converting thechemical potential energy of the salt concentration difference into the electric energy, thereby realizing power generation driven by the salt concentration gradient, in particular the use of seawater-freshwater salt concentration for power generation.

Description

technical field [0001] The present invention belongs to the field of nanofluid generators, and more specifically relates to a nanofluid power generation device driven by a salt concentration gradient and its preparation and application, such as a nanofluid power generation device driven by a seawater-fresh water salt concentration gradient. The process prepares channels with nanoscale depth, width, and length, and generates electricity by applying salt concentration in the reservoir. Background technique [0002] A nanochannel refers to a tiny channel with at least one dimension at the nanoscale, which has many advantages in the field of nanofluid research. Due to the solid-liquid reaction after contact with the fluid, the nanochannel wall will be charged (in the form of SiO 2 For example: negatively charged), while the size of the nanochannel is at the nanoscale, and the ion selectivity due to the surface effect is strong, so it can be used to collect the chemical potentia...

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Problems solved by technology

[0003] At present, nanofluid power generation devices mainly have the following defects: 1. Nanopores of up to 2.6*10 can be obtained by using organic film etching 3 W / m 2 The power density is high, but the film in the electrolyte has problems of expansion and contraction, which affects the stability of the device

2. The output power density of the CMOS-compatible nano-channel power generation device prepared based on the standard semiconductor manufacturing process is only 7.7W / m 2

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