Navigation Links
Gold nanoparticles give an edge in recycling CO2
Date:10/24/2013

PROVIDENCE, R.I. [Brown University] By tuning gold nanoparticles to just the right size, researchers from Brown University have developed a catalyst that selectively converts carbon dioxide (CO2) to carbon monoxide (CO), an active carbon molecule that can be used to make alternative fuels and commodity chemicals.

"Our study shows potential of carefully designed gold nanoparticles to recycle CO2 into useful forms of carbon," said Shouheng Sun, professor of chemistry and one of the study's senior authors. "The work we've done here is preliminary, but we think there's great potential for this technology to be scaled up for commercial applications."

The findings are published in the Journal of the American Chemical Society.

The idea of recycling CO2 a greenhouse gas the planet current has in excess is enticing, but there are obstacles. CO2 is an extremely stable molecule that must be reduced to an active form like CO to make it useful. CO is used to make synthetic natural gas, methanol, and other alternative fuels.

Converting CO2 to CO isn't easy. Prior research has shown that catalysts made of gold foil are active for this conversion, but they don't do the job efficiently. The gold tends to react both with the CO2 and with the water in which the CO2 is dissolved, creating hydrogen byproduct rather than the desired CO.

The Brown experimental group, led by Sun and Wenlei Zhu, a graduate student in Sun's group, wanted to see if shrinking the gold down to nanoparticles might make it more selective for CO2. They found that the nanoparticles were indeed more selective, but that the exact size of those particles was important. Eight nanometer particles had the best selectivity, achieving a 90-percent rate of conversion from CO2 to CO. Other sizes the team tested four, six, and 10 nanometers didn't perform nearly a
'/>"/>

Contact: Kevin Stacey
kevin_stacey@brown.edu
401-863-3766
Brown University
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Stealth nanoparticles lower drug-resistant tumors defenses
2. Researchers figure out why gold nanoparticles can penetrate cell walls
3. Nanoparticles, pH phoresis could improve cancer drug delivery
4. MU researchers develop radioactive nanoparticles that target cancer cells
5. Trackable drug-filled nanoparticles -- a potential weapon against cancer
6. X-rays reveal uptake of nanoparticles by soya bean crops
7. Achilles heel: Popular drug-carrying nanoparticles get trapped in bloodstream
8. Nanoparticles reach new peaks
9. Study reports iron oxide nanoparticles effective for labeling human endothelial cells
10. Synthetic and biological nanoparticles combined to produce new metamaterials
11. UC Davis researchers develop new drug delivery system for bladder cancer using nanoparticles
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Gold nanoparticles give an edge in recycling CO2
(Date:7/7/2015)... 2015 Research and ... of the "Capacitive Fingerprint Sensors Patent Landscape" ... this date, fingerprint sensing technology is the most ... are well developed. This patent landscape focuses on ... The domain of capacitive fingerprint sensors is closely ...
(Date:7/2/2015)... -- Research and Markets( http://www.researchandmarkets.com/research/jvft55/next_generation ) ... Biometrics Market by Application, Technology, Function & Geography - ... The next generation biometrics market is expected ... of 17.9% between 2015 and 2020 Travel ... Safran SA ( France ), ...
(Date:6/29/2015)... 24, 2015 Research and ... "Latin America Biomedical Sensors Market - Growth, Trends ... The Latin America Biomedical Sensors market is estimated ... 2.04% over the period 2014-2020 The near ... the genetic formulation of each individual. These sensors can ...
Breaking Biology News(10 mins):Worldwide Capacitive Fingerprint Sensors Patent Landscape Market Report 2015-2020 - Main IP Holders include Seiko Epson, AuthenTec, Sony and STMicroelectronics 2Next Generation Biometrics Market 2015 - Global Forecast to 2020 with Safran, NEC, 3M Cogent, Fujitsu & Suprema Dominating the $24 Billion Market 2Next Generation Biometrics Market 2015 - Global Forecast to 2020 with Safran, NEC, 3M Cogent, Fujitsu & Suprema Dominating the $24 Billion Market 3Latin America Biomedical Sensors Market Report 2015-2020 2
... (Feb. 6, 2014) Declines in the underlying brain skills ... In fact, this cognitive decline is a fact of life ... the cognitive health of older adults are critically important for ... activity and cognitive training are among the efforts aimed at ...
... at Rice University and the University of Texas Medical ... sensitive and efficient test for the diarrheal disease cryptosporidiosis ... Results from the diagnostic developed by the lab of ... strip that resembles a pregnancy test. Lines on the ...
... have for the first time sequenced an ancient RNA genome ... old - pushing its origin back at least 2,000 years and ... to its spread., Researchers at the University of Warwick have detected ... in a 750-year-old barley grain found at a site near the ...
Cached Biology News:Nutritional supplement improves cognitive performance in older adults, study finds 2Nutritional supplement improves cognitive performance in older adults, study finds 3Quick test finds signs of diarrheal disease 2Quick test finds signs of diarrheal disease 3RNA sequencing of 750-year-old barley virus sheds new light on the Crusades 2RNA sequencing of 750-year-old barley virus sheds new light on the Crusades 3
(Date:7/29/2015)... -- US-Australian drug discovery company, Novogen Limited (ASX: NRT; ... to progressing its ground-breaking technology platforms to Phase 1 ... the Company delivers the best value for shareholders. ... said the Company currently had an extensive program of ... and academic partnerships and initiatives, and he was working ...
(Date:7/29/2015)... ... July 29, 2015 , ... G-CON Manufacturing, Inc., the leading ... 2nd generation cell therapy POD® design. The 2nd generation portfolio not only delivers ... new POD® design. , “G-CON first offered our miniPOD CT product line ...
(Date:7/29/2015)...  Pfenex Inc. (NYSE MKT: PFNX) announced today that ... on Thursday, August 13, 2015, before the open of ... host a conference call to discuss the financial results ... the financial results and business update will be publicly ... 1-866-376-8058 (US) or 1-412-542-4131 (international) and reference Pfenex to ...
(Date:7/29/2015)... ... 2015 , ... Finding gooey or crusty material in the corner of your ... considerable number of terms in popular use to describe it, ophthalmologists call it “gound” ... mucus, blood cells, skin cells and dust, but until now there has been virtually ...
Breaking Biology Technology:Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 2Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 3Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 4Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 5Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 6Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 7Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 8Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 9Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 10G-CON Manufacturing Launches Their 2nd Generation Cell Therapy Cleanroom POD® 2G-CON Manufacturing Launches Their 2nd Generation Cell Therapy Cleanroom POD® 3Pfenex To Report Second Quarter 2015 Results and Provide Business Update on Thursday, August 13, 2015 2What Are ‘Eye Crusties’ Made Of? uBiome Invites Citizen Scientists to Find Out 2What Are ‘Eye Crusties’ Made Of? uBiome Invites Citizen Scientists to Find Out 3What Are ‘Eye Crusties’ Made Of? uBiome Invites Citizen Scientists to Find Out 4
... May 22 SuperGen, Inc.,(Nasdaq: SUPG ... discovery, rapid,development and commercialization of therapies for ... Michael Molkentin, C.P.A.,Chief Financial Officer and Corporate ... President of Drug Discovery Operations, are scheduled,to ...
... PHILLIPSBURG, N.J., May 22 Celldex,Therapeutics (a wholly-owned ... that its lead product,candidate, CDX-110, being developed for ... subject of an oral presentation at the 44th,Annual ... (ASCO). The,ASCO meeting will be held at McCormick ...
... AMSTERDAM, The Netherlands, May 22 Amsterdam,Molecular ... field of human gene,therapy, today announced that ... in Rome, Italy, to their advanced small ... of Duchenne,muscular dystrophy (DMD). The combination with ...
Cached Biology Technology:SuperGen to Present at FBR Capital Markets 12th Annual Spring Investor Conference on May 29, 2008 2AVANT Immunotherapeutics Announces Oral Presentation of CDX-110 at ASCO Annual Meeting 2AVANT Immunotherapeutics Announces Oral Presentation of CDX-110 at ASCO Annual Meeting 3AMT Accesses Technology for Treatment of Duchenne Muscular Dystrophy 2AMT Accesses Technology for Treatment of Duchenne Muscular Dystrophy 3
Special grade: for molecular biology Density: 1.000 g/mL (20 C)...
Mol wt: average mol wt12,360.96 Da by calculation...
... Grace's medium were developed in several laboratories ... of these modifications were developed by Dr. ... derived from the cabbage looper,Tricoplusia ni. This ... The medium when properly supplemented has been ...
... clear polystyrene with frosted labeling surfaces, ... cell counting. 100% integrity tested. Linkage: ... product number, created to easily match ... availability yet, please order under the ...
Biology Products: