PaintSquare.com


The First Word in Protective & Marine Coatings

A Product of Technology Publishing / PaintSquare
JPCL | PaintSquare News | Durability + Design | Paint BidTracker

Paint and Coatings Industry News

Main News Page


‘Smart Skin’ Coating Harvests Energy

Monday, August 1, 2011

More items for Coating Materials

Comment | More

It resists UV degradation. It fights corrosion. It creates ultra-water-resistant surfaces. And now, researchers say, coatings using the wonder material graphene can harvest energy.

Researchers at Rensselaer Polytechnic Institute in New York and Rice University in Houston have developed a new way to harvest energy from flowing water using a nanoengineered graphene coating.

The new technology produces only small amounts of electricity, so it is not aimed at large-scale electricity production—at least, not yet. Still, it holds immediate promise for self-powered microsensors used in oil exploration, scientists say.

 Graphene coating

 Rensselaer / Koratkar

The graphene coating, seen as a dark blue patch connected to gold contacts, generated 85 nanowatts of power.

Potential future applications include self-powered microrobots or microsubmarines and harvesting power from a graphene coating on the underside of a boat.

Capturing Energy

“It’s impossible to power these microsensors with conventional batteries, as the sensors are just too small. So we created a graphene coating that allows us to capture energy from the movement of water over the sensors,” the study’s lead author, Nikhil Koratkar, told the South Asian news service ANI.

Harvesting Energy from Water Flow over Graphene,” published recently in the journal Nano Letters, is the first research paper to result from a $1 million grant by the Advanced Energy Consortium—a group that is developing intelligent subsurface micro- and nanosensors that can be injected into oil and gas reservoirs to help improve the recovery of existing and new hydrocarbon resources.

The article describes how the microsensors can potentially be self-powered by covering them with a graphene coating. The sensors can harvest energy as water flows over the coating, the team says.

“We’ll wrap the graphene coating around the sensor, and it will act as a ‘smart skin’ that serves as a nanofluidic power generator,” Koratkar said.

Microsensor Power

Using a sheet of graphene measuring 0.03 by 0.05 mm, the team was able to generate 85 nanowatts of power. Although this is only a very small amount, Koratkar, says it should be enough to power tiny sensors that could be introduced into water or other fluids and pumped down into a potential oil well.

As the injected water trickles through cracks and crevices in the earth, the devices would be used to detect the presence of hydrocarbons to help uncover hidden pockets of oil and natural gas.

Koratkar’s team also tested the energy harvested from water flowing over a film of carbon nanotubes. However, the energy generation and performance was far inferior to those attained using graphene, he said.

Hydroelectricity is the most widely used form of renewable energy, supplying around 20 percent of the world’s electricity in 2006, which accounted for about 88 percent of electricity from renewable sources.

Spotlight on Graphene Research

The thinnest, strongest material ever made, graphene has been on the front burner of global materials science development since the flake of carbon inspired Nobel Prize-winning research in 2010.

Stronger and stiffer than diamond, yet stretchable like rubber, graphene has been found to conduct heat and conduct electricity as well as copper. It is almost transparent, yet so dense that not even helium can pass through it, experts say. Graphene also allows electrons to flow much faster than silicon, and many experts believe it will soon replace silicon technologies.

Several graphene-related coatings breakthroughs have been announced in recent months, and the European Commission has announced a 10-year, 1 billion euro ($1.45 billion US) research initiative focusing on graphene.

   

Tagged categories: Coatings technology; Corrosion resistance; Moisture resistance; Research; UV resistance

Comment Join the Conversation:

Sign in to our community to add your comments.

International Paint LLC

International Paint Engineered Coatings

Learn about our solutions for:
  • Structural Steel
  • Piping & Equipment
  • Storage Tanks
  • Pressure Vessels
  • Secondary Containment


    Polyval Coatings
    POLYFLEX brand Polyurea

    high chemical resistant membranes are used extensively to protect our environment in secondary containment applications.


    Wasser High-Tech Coatings Inc.
    Wasser Coatings Protect

    some of the most important bridges in the country; learn about our NEPCOAT-approved system and our entire range of MCU & Polyurea coatings. 1-800-627-2968 www.wassercoatings.com


    BASF
    New resins from BASF will have metals loving water:

    Excellent corrosion resistance, low VOC, high gloss, thin films basf.us/industrialcoatings
    polyorders@basf.com
    800-231-7868


    Sherwin-Williams
    Sherwin Williams

    • Extends Service Life
    • Single Coat Application
    • Cure to Service in 24 Hours


    Mitsubishi Gas Chemical America
    Performance Amine 1,3-BAC

    A highly reactive cycloaliphatic diamine offering superior performance. Reasonable cost and curing efficacy makes it suitable for all types of epoxy resin applications.


    Sauereisen, Inc.
    Experts in Corrosion

    A Leader in the manufacture of speciality cements and corrosion-resistant materials of construction. www.sauereisen.com

  •  
     
     
    Technology Publishing

    The Technology Publishing Network

    The Journal of Protective Coatings & Linings (JPCL) PaintSquare
    Durability + Design Paint BidTracker JPCL Europe

     
    EXPLORE:      JPCL   |   PaintSquare News   |   Interact   |   Buying Guides   |   Webinars   |   Resources   |   Classifieds
    REGISTER AND SUBSCRIBE:      Free PaintSquare Registration   |   Subscribe to JPCL   |   Subscribe to PaintSquare News
    MORE:      About PaintSquare.com   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us
     

    © Copyright 2000-2014, Technology Publishing / PaintSquare, All rights reserved
    2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951; Tel 1-412-431-8300; Fax 1-412-431-5428; E-mail webmaster@paintsquare.com