During cold start, a car engine emits far more particulate matter and other pollutants than during warm conditions. This is because a cold catalytic converter is much less efficient at low exhaust gas temperatures. So what's ...
Materials Science
Dec 5, 2017
1
9
Jouncing along to school in a fume-spewing, rattletrap yellow bus is practically a rite of passage for most American students.
Economics & Business
Apr 11, 2023
0
7
Mayara da Silva Santos, doctoral candidate at the University of Freiburg's Institute of Physics, has discovered a new oxidation state of rhodium. This chemical element is one of the most catalytically important platinum-group ...
Analytical Chemistry
Sep 14, 2022
0
53
Although much of the discourse on reducing vehicle emissions centers on electric vehicles (EV), their sales remain low—with EV vehicles accounting for a mere 1% of car purchases in Japan in 2021. Meanwhile, the European ...
Analytical Chemistry
Nov 7, 2022
0
124
A new method to anchor single atoms of platinum-group metals on nanometer-sized islands allows for efficiently using these expensive metals as catalysts for a wide variety of applications.
Nanophysics
Oct 26, 2022
0
12
Air pollution remains a major health hazard for our nation despite significant improvement in the U.S. air quality since the passage of the Clean Air Act and formation of the Environmental Protection Agency (EPA) in 1970. ...
Energy & Green Tech
Oct 20, 2015
3
29
For understanding the structure and function of catalysts in action, researchers of Karlsruhe Institute of Technology (KIT), in cooperation with colleagues from the Swiss Light Source SLS of Paul Scherrer Institute (PSI) ...
Materials Science
Dec 17, 2020
1
41
Russian chemists from NUST MISIS have developed a new hybrid catalyst for carbon monoxide oxidation consisting of hexagonal boron nitride and silver nanoparticles. This material makes it possible to get a full conversion ...
Materials Science
Dec 12, 2018
0
4
Air pollution from fuel combustion is one of the greatest environmental problems, especially in urban environments. In densely populated cities, the presence of nitrogen oxides, very small carbon particles, and carbon monoxide ...
Biochemistry
Feb 25, 2021
1
6
At Karlsruhe Institute of Technology (KIT), scientists have studied ceria nanoparticles with the help of probe molecules and a complex ultrahigh vacuum-infrared measurement system and obtained new insights into their surface ...
Nanomaterials
Nov 16, 2017
0
3
