Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 12, Issue 9, Pages 11232-11239Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b23380
Keywords
streaming potential/current; natural wood; electricity generation; capillarity; evaporation
Funding
- Fundamental Research Funds for the Central Universities [A03017023601300]
- Max-Planck-Gesellschaft (Max Planck Partner Group UESTC-MPIP)
Ask authors/readers for more resources
When external pressure drives an electrolyte solution in a capillary tube with a charged inner surface, we obtain a streaming potential/current. This effect is also manifested when water flows through the microchannels of a tree, which is driven by capillary pressure and natural evaporation. Thus, by making use of natural evaporation, we took advantage of the anisotropic three-dimensional wood structures to fabricate nanogenerators drawing electricity from the streaming potential/current. As a result, direct current can be harvested continuously, simply through a piece of wood. A 300 mV open-circuit voltage and a 10 mu A short-circuit current (I-SC) were recorded from a single device, which surpassed the I-SC values of most previous works by an order. By connecting five wood nanogenerators in series, a calculator can be completely functional, as a demonstration for practical application.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available