Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Rice's Thomann wins CAREER grant to study photocatalysis: Rice lab's unique spectrometer will shed light on solar-powered CO2 reduction

 Isabell Thomann
CREDIT: Jeff Fitlow/Rice University
Isabell Thomann

CREDIT: Jeff Fitlow/Rice University

Abstract:
It's difficult to define Rice University scientist Isabell Thomann, whose research encompasses chemistry, optics, electrical engineering, energy and the environment -- just to name a few. But thanks to a prestigious CAREER Award from the National Science Foundation (NSF), Thomann's got the chance to focus her energies on a five-year quest to explore ways of using sunlight to reduce the carbon footprint of power plants.

Rice's Thomann wins CAREER grant to study photocatalysis: Rice lab's unique spectrometer will shed light on solar-powered CO2 reduction

Houston, TX | Posted on June 19th, 2014

"We are interested in improving photocatalysis, a class of processes in which we use light to drive chemical reactions," Thomann said. "This grant will focus on the reduction of carbon dioxide using sunlight, but the methods that we study in our lab can be broadly applied across many disciplines."

CAREER Awards are among the NSF's most competitive. Only about 400 are given each year across all disciplines. The awards, which include $400,000 in research funding, are given to "junior faculty who exemplify the role of teacher-scholars through outstanding research, excellent education and the integration of education and research within the context of the mission of their organizations," according to the NSF.

Thomann holds joint appointments in Rice's departments of Electrical and Computer Engineering, Chemistry, and Materials Science and NanoEngineering. One facet of her work focuses on designing and testing photocatalytic nanomaterials -- tiny bits of matter that interact with light to foster chemical reactions.

"Typically in a chemical reaction, you have a reactant, or chemical input A, that is used to produce a chemical product B," Thomann said. "It's rare that a reaction goes directly from A to B. Often there are a number of short-lived, intermediate chemicals that are produced in between. We would like to better understand what these short-lived intermediates are so we can better control the output of the chemical reactions."

One reason intermediate chemicals are often overlooked and poorly studied is that they exist for a short time -- sometimes just a fraction of a second -- before they are consumed by a subsequent reaction.

"Probing these is a real challenge because of the fast timescales involved," Thomann said. "We are developing an ultrafast laser spectroscopy system that, in essence, allows us to take a movie of the short-lived chemical intermediates as they come and go."

The spectrograph can read the optical signatures of molecules. These act like fingerprints that her team can use to determine exactly which intermediates are present and in what concentration at any point throughout the reaction. By running repeated tests under a variety of reaction conditions, Thomann's team hopes to learn how to optimize the efficiency and selectivity of chemical reactions.

"We are building this tunable laser source with lots of different colors because not every reaction is alike," Thomann said. "With this tunable laser system, we can shine light of any color to study different chemicals."

In the case of carbon dioxide, the research could allow chemical engineers to optimize solar-powered CO2 conversion systems for a variety of different parameters.

"Every application is a bit different, and this is the kind of knowledge engineers need to meet a specific challenge," she said. "In one case, the limiting factor might be the upfront cost of building the system. In another instance, the engineer might be more interested in optimizing output. In each case, it is important to understand exactly how the reaction takes place."

Thomann said energy and green chemistry are but two of the research themes in her lab.

"We are definitely interested in materials for energy applications, particularly for those involving solar photocatalysis," Thomann said. "But energy is just one of the big challenges of our day. There are also other challenges in sensing and in health. Over time, we aim to be part of solving or helping to solve other grand challenges through the use of nanophotonics."

####

About Rice University
Located on a 300-acre forested campus in Houston, Rice University is consistently ranked among the nation's top 20 universities by U.S. News & World Report. Rice has highly respected schools of Architecture, Business, Continuing Studies, Engineering, Humanities, Music, Natural Sciences and Social Sciences and is home to the Baker Institute for Public Policy. With 3,920 undergraduates and 2,567 graduate students, Rice's undergraduate student-to-faculty ratio is 6.3-to-1. Its residential college system builds close-knit communities and lifelong friendships, just one reason why Rice has been ranked No. 1 for best quality of life multiple times by the Princeton Review and No. 2 for "best value" among private universities by Kiplinger's Personal Finance.

Follow Rice News and Media Relations on Twitter @RiceUNews.

For more information, please click here

Contacts:
David Ruth
713-348-6327


Jade Boyd
713-348-6778

Copyright © Rice University

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

A copy of the NSF grant abstract is available here:

Related News Press

News and information

Iranian Researchers Synthesize Stable Ceramic Nanopowders at Room Temperature September 20th, 2014

Arrowhead to Present at BioCentury's NewsMakers in the Biotech Industry Conference September 19th, 2014

SouthWest NanoTechnologies (SWeNT) Receives NIST Small Business Innovation Research (SBIR) Phase 1 Award to Produce Greater than 99% Semiconducting Single-Wall Carbon Nanotubes September 19th, 2014

Toward optical chips: A promising light source for optoelectronic chips can be tuned to different frequencies September 19th, 2014

Govt.-Legislation/Regulation/Funding/Policy

SouthWest NanoTechnologies (SWeNT) Receives NIST Small Business Innovation Research (SBIR) Phase 1 Award to Produce Greater than 99% Semiconducting Single-Wall Carbon Nanotubes September 19th, 2014

Big Results Require Big Ambitions: Three young UCSB faculty receive CAREER awards from the National Science Foundation September 18th, 2014

Scientists refine formula for nanotube types: Rice University theorists determine factors that give tubes their chiral angles September 17th, 2014

New non-invasive technique could revolutionize the imaging of metastatic cancer September 17th, 2014

Materials/Metamaterials

Iranian Scientists Separate Zinc Ion at Low Concentrations September 20th, 2014

Iranian Researchers Synthesize Stable Ceramic Nanopowders at Room Temperature September 20th, 2014

Big Results Require Big Ambitions: Three young UCSB faculty receive CAREER awards from the National Science Foundation September 18th, 2014

Wear-resistant ceramic powder maximises component lifespan in high-stress applications: Innovnano’s nanostructured 3YSZ offers improved tribological performance for manufacturing components September 18th, 2014

Announcements

Iranian Scientists Separate Zinc Ion at Low Concentrations September 20th, 2014

Arrowhead to Present at BioCentury's NewsMakers in the Biotech Industry Conference September 19th, 2014

SouthWest NanoTechnologies (SWeNT) Receives NIST Small Business Innovation Research (SBIR) Phase 1 Award to Produce Greater than 99% Semiconducting Single-Wall Carbon Nanotubes September 19th, 2014

Toward optical chips: A promising light source for optoelectronic chips can be tuned to different frequencies September 19th, 2014

Environment

Iranian Nano Scientists Create Flame-Resistant Polymers September 13th, 2014

NanoStruck has a High Recovery Rate on Mine Tailings: retrieval of up to 96% of Gold, 88% of Silver and 86% of Palladium September 12th, 2014

Nanostruck announces 87.6% recovery of 56 GMS/ton silver tailings samples September 12th, 2014

Boosting armor for nuclear-waste eating microbes September 12th, 2014

Energy

Iranian Researchers Synthesize Stable Ceramic Nanopowders at Room Temperature September 20th, 2014

IEEE International Electron Devices Meeting To Celebrate 60th Anniversary as The Leading Technical Conference for Advanced Semiconductor Devices September 18th, 2014

Rice rolls 'neat' nanotube fibers: Rice University researchers' acid-free approach leads to strong conductive carbon threads September 15th, 2014

Simple, Cost-Effective Method Proposed for Synthesizing Zinc Oxide Nanopigments September 15th, 2014

Grants/Awards/Scholarships/Gifts/Contests/Honors/Records

SouthWest NanoTechnologies (SWeNT) Receives NIST Small Business Innovation Research (SBIR) Phase 1 Award to Produce Greater than 99% Semiconducting Single-Wall Carbon Nanotubes September 19th, 2014

Big Results Require Big Ambitions: Three young UCSB faculty receive CAREER awards from the National Science Foundation September 18th, 2014

Effective Nanotechnology Innovations to Receive Mustafa Prize September 16th, 2014

‘Small’ transformation yields big changes September 16th, 2014

Photonics/Optics/Lasers

Toward optical chips: A promising light source for optoelectronic chips can be tuned to different frequencies September 19th, 2014

The Pocket Project will develop a low-cost and accurate point-of-care test to diagnose Tuberculosis: ICN2 holds a follow-up meeting of the Project on September 18th - 19th September 18th, 2014

'Squid skin' metamaterials project yields vivid color display: Rice lab creates RGB color display technology with aluminum nanorods September 15th, 2014

Fonon at Cutting-Edge of 3D Military Printing: Live-Combat Scenarios Could See a Decisive Advantage with 3D Printing September 15th, 2014

Solar/Photovoltaic

Simple, Cost-Effective Method Proposed for Synthesizing Zinc Oxide Nanopigments September 15th, 2014

Indium/Copper Sulfide Compound Semi-Conductor Synthesized through New Method September 8th, 2014

Material development on the nanoscale: Doped graphene nanoribbons with potential September 8th, 2014

Layered graphene sandwich for next generation electronics September 8th, 2014

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE