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:4/2/2015)... April 2, 2015 In ... by far outperforms the strongest competitors, showing outstanding ... accuracy, the system is capable of a throughput ... proves up to be ten times faster than ... runner-up performance.      (Photo: http://photos.prnewswire.com/prnh/20150402/738673-a ...
(Date:4/1/2015)... -- NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or the ... mobile commerce market, announces the second shipment of a ... early access pre-order customers. Feedback from ... including Walmart, Target, AT&T, Dunkin, Donuts, Stop & Shop ... all outlets and very easy to use. Several users ...
(Date:3/30/2015)... , Mar. 26, 2015 Research and Markets ... the "Global Gesture Recognition Market in Automotive Sector ... analysts forecast the Global Gesture Recognition market in Automotive ... the period 2013-2018. Gesture recognition is the ... different gestures of an individual. Gesture recognition technology can ...
Breaking Biology News(10 mins):DERMALOG AFIS Emerges as Performance Winner in NIST Benchmark Test 2DERMALOG AFIS Emerges as Performance Winner in NIST Benchmark Test 3NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 2NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 3NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 4Global Gesture Recognition Market in Automotive Sector Report 2015 - Growing Number of Partnerships 2
... of South Florida researchers have identified a genetic biomarker ... and preventing a condition of aging that affects 30 ... In a nine-year study that was a collaboration ... and the National Technical Institute for the Deaf at ...
... fatty acidsfound in foods like wild fish and grass-fed ... the working memory of healthy young adults have not ... of its kind, researchers at the University of Pittsburgh ... improve their working memory even further by increasing their ...
... Researchers report in the journal Developmental Cell ... and regeneration of the intestine in the freshwater planarian ... internal organs after injury is not well understood," said ... Newmark, who led the study. "Planarian flatworms are useful ...
Cached Biology News:USF researchers identify gene mutation linked to old age hearing loss 2Omega-3 intake heightens working memory in healthy young adults 2Omega-3 intake heightens working memory in healthy young adults 3Using planarian flatworms to understand organ regeneration 2
(Date:5/1/2015)... TRIANGLE PARK, N.C. , May 1, 2015  United ... Roger Jeffs , Ph.D., President and Co-Chief Executive Officer of ... company,s business at the Deutsche Bank 40 th Annual ... The presentation will take place on Wednesday, May ... accessed via a live webcast on the United Therapeutics website ...
(Date:4/30/2015)...  Roka Bioscience, Inc. (NASDAQ: ROKA ), a ... for the detection of foodborne pathogens, announced plans to ... 2015 on May 7, 2015 after the close of ... host a conference call at 4:30 p.m. Eastern Time ... financial results. During the conference call, material information concerning ...
(Date:4/30/2015)... San Francisco, CA (PRWEB) April 30, 2015 ... for the first quarter of 2015 were $4.4 million, compared ... The net loss for the first quarter was $8.9 million, ... to a net loss for the same period in 2014, ... share. As of March 31, 2015, cash, cash equivalents and ...
(Date:4/30/2015)... 2015 Nitto Avecia, a leading ... increased capacity and production capability to serve biotechnology ... and service fulfillment continues to drive Nitto Avecia ... throughput capacities. , In Fall 2014, ... process equipment at its Milford, MA facility, which ...
Breaking Biology Technology:Roka Bioscience to Report First Quarter 2015 Financial Results On May 7, 2015 2Cytokinetics, Incorporated Reports First Quarter 2015 Financial Results 2Cytokinetics, Incorporated Reports First Quarter 2015 Financial Results 3Cytokinetics, Incorporated Reports First Quarter 2015 Financial Results 4Cytokinetics, Incorporated Reports First Quarter 2015 Financial Results 5Cytokinetics, Incorporated Reports First Quarter 2015 Financial Results 6Cytokinetics, Incorporated Reports First Quarter 2015 Financial Results 7Cytokinetics, Incorporated Reports First Quarter 2015 Financial Results 8Biotechnology Manufacturer Nitto Avecia Expands Capacity to Meet Client Demand 2
... -- Third Wave Technologies , a provider of ... line with market expectations. , ,Third Wave reported total revenue ... or 13 cents per diluted share, for the quarter ended ... and a net loss of $106,000 and zero cents per ...
... Wis . - Customer Potential Management , a ... that its customer relationship management solution has been implemented ... , ,St. John used the CRM solution to promote ... Center, a 15-year partnership with oncologists from both hospitals. ...
... Wis. - Madison Area Technical College is launching ... energy technologies in technical colleges and high schools. The ... and other resources to better prepare qualified technicians to ... ,A $500,000 National Science Foundation (NSF) grant - the ...
Cached Biology Technology:Transition continues to impact Third Wave financials 2
... number is a new product number, ... number. If showing no availability yet, ... number (E6152) or contact customer service ... diam. 11.25 6.40 in. ...
... Analysis of large numbers of samples may ... which requires minimum operator attention. System control ... and interface CE 4900. The elegant, powerful ... Windows XP and Windows 98 and 2000., The ...
Mouse monoclonal antibody to QPCT - glutaminyl-peptide cyclotransferase (glutaminyl cyclase)...
... This CLS number is ... created to easily match ... showing no availability yet, ... old Sigma-Aldrich number (Z35,347-7) ...
Biology Products: