Water-evaporation-induced electricity with nanostructured carbon materials
Top Cited Papers
- 30 January 2017
- journal article
- Published by Springer Science and Business Media LLC in Nature Nanotechnology
- Vol. 12 (4), 317-321
- https://doi.org/10.1038/nnano.2016.300
Abstract
Water evaporation is a ubiquitous natural process that harvests thermal energy from the ambient environment. It has previously been utilized in a number of applications including the synthesis of nanostructures and the creation of energy-harvesting devices. Here, we show that water evaporation from the surface of a variety of nanostructured carbon materials can be used to generate electricity. We find that evaporation from centimetre-sized carbon black sheets can reliably generate sustained voltages of up to 1 V under ambient conditions. The interaction between the water molecules and the carbon layers and moreover evaporation-induced water flow within the porous carbon sheets are thought to be key to the voltage generation. This approach to electricity generation is related to the traditional streaming potential, which relies on driving ionic solutions through narrow gaps, and the recently reported method of moving ionic solutions across graphene surfaces, but as it exploits the natural process of evaporation and uses cheap carbon black it could offer advantages in the development of practical devices.Keywords
This publication has 29 references indexed in Scilit:
- Scaling up nanoscale water-driven energy conversion into evaporation-driven engines and generatorsNature Communications, 2015
- Generating electricity by moving a droplet of ionic liquid along grapheneNature Nanotechnology, 2014
- Bacillus spores as building blocks for stimuli-responsive materials and nanogeneratorsNature Nanotechnology, 2014
- Carbon Nanoparticles on Carbon Fabric for Flexible and High‐Performance Field EmittersAdvanced Functional Materials, 2011
- Large‐Scale Synthesis of Long Crystalline Cu2‐xSe Nanowire Bundles by Water‐Evaporation‐Induced Self‐Assembly and Their Application in Gas SensingAdvanced Functional Materials, 2009
- Thermocapillary transport of energy during water evaporationPhysical Review E, 2005
- Raman spectroscopic characterization of some commercially available carbon black materialsCarbon, 1995
- Energy from the evaporation of waterAmerican Journal of Physics, 1983
- Flat plate streaming potential investigations: Hydrodynamics and electrokinetic equivalencyJournal of Colloid and Interface Science, 1980
- Natural evaporation from open water, bare soil and grassProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1948