Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Nanostellar Introduces Gold in Oxidation Catalyst That Can Reduce Diesel Hydrocarbon Emissions by as Much as 40 Percent More Than Commercial Catalysts

Abstract:
Boost in catalyst technology aims to slash emissions in light- and heavy-duty diesel engines and other lean-stream applications

Nanostellar Introduces Gold in Oxidation Catalyst That Can Reduce Diesel Hydrocarbon Emissions by as Much as 40 Percent More Than Commercial Catalysts

DETROIT, MI | Posted on April 16th, 2007

Nanostellar, Inc., a leader in nano-engineered catalyst materials, today announced a first in diesel emissions technology: the introduction of gold as an oxidation catalyst. Nanostellar's NS Gold catalyst enables manufacturers of light- and heavy-duty diesel engines to reduce noxious emissions by as much as 40 percent more than existing pure-platinum catalysts at equal cost. Nanostellar introduced its first-generation product, based on a platinum and palladium alloy, in mid-2006, and it achieved 25%-30% higher performance than commercial pure-platinum catalysts. NS Gold, Nanostellar's second-generation product, delivers a further 15%-20% performance increase.

Platinum is the most expensive component of the diesel oxidation catalysts (DOCs) that are required to meet the new, stringent emission regulations for the 14 million light-duty and 2 million heavy-duty diesel vehicles produced annually worldwide. In recent years, Nanostellar and other producers of catalyst materials have introduced the use of palladium to partially replace the four-times more expensive platinum. Now, to further reduce the amount of platinum needed and the overall cost of the catalysts, Nanostellar has pioneered the use of gold - which is currently about half the price of platinum - for diesel emission control.

Independent testing of Nanostellar's NS Gold, in comparison with today's pure-platinum catalysts, has shown that NS Gold increases hydrocarbon oxidation activity by as much as 40 percent at equal precious-metal cost. When compared to emerging platinum-palladium catalysts, NS Gold promises to increase hydrocarbon oxidation activity by 15-20 percent at equal precious-metal cost. A tri-metal formulation of gold, platinum, and palladium, NS Gold allows the proportions of each metal to be adjusted to help catalyst systems engineers meet engine-specific performance targets and stabilize the overall cost of diesel catalysts, despite fluctuations in the price of precious metals.

"Not only does NS Gold break performance barriers imposed by mixed platinum and palladium catalysts, but also its performance can be more easily tuned to the characteristics of a variety of diesel engines," said Pankaj Dhingra, CEO of Nanostellar. "We are excited to offer NS Gold to improve the cost equation for the diesel industry. Gold is not new to catalyst scientists, but this is the first time it has been successfully adapted for use in automotive diesel oxidation catalysts."

According to Dhingra, the continued evolution and maturity of Nanostellar's Rational Catalyst Design methodology brought NS Gold into existence in record time. "Rational Design combines computational approaches with targeted experiments to accelerate the development of new materials," he explained "Nanostellar has over 50 man-years of Rational Catalyst Design experience and a substantial database of catalyst-specific knowledge, developed from both computational and experimental approaches. We have unique algorithms and software that address computational catalyst design, along with proprietary synthesis technologies and novel testing methods that provide a detailed understanding of catalytic processes."

NS Gold is potentially suitable for treating all lean-stream exhaust, where air is in excess of fuel-borne hydrocarbon gases. Applications include, but are not limited to, treating particulates and hydrocarbons in soot filters, stationary-source volatile organic compound (VOC) emissions, and ammonia slip in selective catalytic reduction (SCR) systems.

NS Gold is immediately available for targeted application-specific testing. Production quantities will be available as production programs are identified and released.

####

About Nanostellar, Inc.
Nanostellar, Inc. provides diesel automotive and stationary power industries with nano-engineered catalyst materials that reduce exhaust emissions and increase the effectiveness of precious metals in catalysts. Focusing in the fields of quantum computational nanoscience, chemistry, materials science, and chemical engineering, Nanostellar utilizes Rational Catalyst Design, which combines computational approaches with targeted experiments, to accelerate the development of new materials. Headquartered in Redwood City, California, Nanostellar is funded by premier investors including 3i, Khosla Ventures, Monitor Ventures, Firelake Capital Management LLC, and AsiaTech Management.

Nanostellar is a registered trademark and NS Gold is a trademark of Nanostellar, Inc. All other brands, products, or service names are or may be trademarks or service marks of their respective owners.

For more information, please click here

Contacts:
Eileen Leveckis
Trainer Communications
(415) 819-4232

Copyright © Nanostellar, Inc.

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 News Press

Announcements

Searching for errors in the quantum world September 21st, 2018

Viral RNA sensing: Optical detection of picomolar concentrations of RNA using switches in plasmonic chirality September 21st, 2018

UT engineers develop first method for controlling nanomotors: Breakthrough for nanotechnology as UT engineers develop first method for switching the mechanical motion of nanomotors September 21st, 2018

Nanobiotix: Update on Head and Neck Phase I/II Trial with NBTXR3 and Other program data presented at ImmunoRad 2018 September 20th, 2018

Environment

Silver nanoparticles are toxic for aquatic organisms: A research team at the UPV/EHU-University of the Basque Country has analysed how zebrafish are affected in the long term by exposure to silver particles September 19th, 2018

Carbon nanodots do an ultrafine job with in vitro lung tissue: New experiments highlight the role of charge and size when it comes to carbon nanodots that mimic the effect of nanoscale pollution particles on the human lung. September 12th, 2018

A human enzyme can biodegrade graphene August 28th, 2018

Large scale preparation method of high quality SWNT sponges August 24th, 2018

Automotive/Transportation

A Comprehensive Guide: The Future of Nanotechnology September 13th, 2018

Mirrorcle Demonstrates MEMS-based Programmable Light Source at CES and PW18 August 30th, 2018

Strategic Materials Conference 2018 Highlights “Materials Shaping the Future of Electronics” July 30th, 2018

Researchers use nanotechnology to improve the accuracy of measuring devices July 24th, 2018

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



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project