Tag: dioxide

Researchers discover effective pathway to convert carbon dioxide into ethylene

Researchers discover effective pathway to convert CO2 into ethylene
Illustration of the ElectroCatalysis system which synthesized the smooth nanowire and then activated it by applying a voltage to get the rough stepped surface that is highly selective for CO2 reduction to ethylene. Credit: Yu Huang and William A. Goddard III

A research team from Caltech and the UCLA Samueli School of Engineering has demonstrated a promising way to efficiently convert carbon dioxide into ethylene—an important chemical used to produce plastics, solvents, cosmetics and other important products globally.


The scientists developed nanoscale copper wires with specially shaped surfaces to catalyze a chemical reaction that reduces greenhouse gas emissions while generating ethylene—a valuable chemical simultaneously. Computational studies of the reaction show the shaped catalyst favors the production of ethylene over hydrogen or methane. A study detailing the advance was published in Nature Catalysis.

“We are at the brink of fossil fuel exhaustion, coupled with global climate change challenges,” said Yu

Read More

Successful improvement of the catalytic activity of photosynthetic carbon dioxide fixing enzyme Rubisco

Successful improvement of the catalytic activity of photosynthetic carbon dioxide fixing enzyme Rubisco
Strategy for improving catalytic activity in rice Rubisco: WT (Wild Type, unmodified rice), SS (rice with sorghum RbcS), CSS (rice with sorghum RbcS transferred/rice RbcS knocked out). Credit: Kobe University

A research group consisting of Associate Professor Fukayama Hiroshi (Kobe University, Graduate School of Agricultural Science) and Professor Matsumura Hiroyoshi (Ritsumeikan University) et al. have succeeded in greatly increasing the catalytic activity of Rubisco, the enzyme which fixes carbon from CO2 in plant photosynthesis. The research team also hypothesized the mechanism which determines the catalytic activity of Rubisco, based on structural analysis of the proteins. In the future, it is hoped that increasing the photosynthetic ability of agricultural crops will lead to increased yields. These results were published in the international scientific journal Molecular Plant on August 31.


Growth speed in plants is mainly determined by photosynthetic ability. Thus improving photosynthesis in agricultural crops can increase their yield. In

Read More