. 24/7 Space News .
EXO WORLDS
Samara scientists research how building material for planets appears in the universe
by Staff Writers
Samara, Russia (SPX) Apr 10, 2019

The formation mechanism of triphenylene was confirmed by quantum-mechanical calculations

The international team of scientists proposed a sequence of transformations starting from a chemical compound - a triphenylene molecule - to graphene nanoparticles, soot, and carbon dust, which are building materials for a considerable part of meteorites.

The team of scientists of Samara National Research University, Florida International University, the University of Hawaii and Lawrence National Laboratory (Berkeley) proposed and during the experiment confirmed the formation mechanisms of the primary building block for a part of meteorites and planets - triphenylene molecules. The results of the study are published in the article "Gas-Phase Synthesis of Triphenylene (C18H12)" and placed on the cover of the high ranking journal ChemPhysChem.

Triphenylene is a key element around which larger graphene-like structures are formed, which then gradually "stick together" into layered nanoparticles. The latter, colliding with each other, are combined into particles of soot and carbon dust. Due to gravity, dust is collected in the simplest meteorites - carbonaceous chondrites, and then in other, larger celestial bodies, including planets.

The formation mechanism of triphenylene was confirmed by quantum-mechanical calculations carried out by a team of Samara University scientists from the research laboratory "Physics and Chemistry of Combustion", supported by the megagrant of the Russian government "Developments of Physically Grounded Combustion Models" (grant No. 14.Y26.31.0020). The aim of the research is to study the formation mechanisms of harmful substances in combustion chambers, which include polyaromatic hydrocarbons (PAHs), nanoparticles and soot.

"In fact, we have found one of the starting mechanisms for reactions that trigger the formation of nanoparticles, soot and carbon dust both in the combustion chambers of engines and in the molecular clouds of the galaxies," - said Head of Samara University Physics and Chemistry of Combustion Laboratory, Professor of Florida International University Alexander Mebel.

The calculations showed that the process of triphenylene formation can proceed not only in flames at high temperatures, but also in conditions of extra-low temperatures in interstellar space, triggering the growth mechanism of flat polycyclic aromatic hydrocarbons (PAHs) up to nanoscale particles.

In addition, as it is shown by the analysis carbonaceous chondrides having flown to the Earth from space, their composition contains the entire spectrum of particles, ranging from simple PAHs to graphene nanoparticles.

"Our work aroused wide interest of the scientific community not only because we found the mechanism of formation of the triphenylene molecule, but we also determined all the kinetic constants of the processes involved in this reaction", - added Alexander Mebel.

For this reason, the data obtained during the study, according to the Professor of Florida International University, will be in demand both by design engineers for creating environmentally friendly combustion chambers of aircraft and automobile engines operating on hydrocarbon fuels, and by scientists who are studying the formation of various galactic macrostructures from molecular clouds.

Research paper


Related Links
Samara University
Lands Beyond Beyond - extra solar planets - news and science
Life Beyond Earth


Thanks for being there;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.
SpaceDaily Monthly Supporter
$5+ Billed Monthly


paypal only
SpaceDaily Contributor
$5 Billed Once


credit card or paypal


EXO WORLDS
High School Senior Uncovers Potential for Hundreds of Earth-Like Planets in Kepler Data
Moffett Field CA (SPX) Apr 01, 2019
An 18-year-old high school senior has won a $250,000 prize for calculating the potential for finding more planets outside our solar system, called exoplanets, using data from NASA's Kepler space telescope. Kepler, whose mission ended in 2018, discovered over 2,600 confirmed exoplanets, with thousands more candidate planets still being considered. But are there more planets that have yet to be found around stars Kepler looked at, leaving traces in the telescope's data? Ana Humphrey, a student at T. ... read more

Comment using your Disqus, Facebook, Google or Twitter login.



Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

EXO WORLDS
A decade-long quest to build an ecosystem in a room

NASA selects two new space tech research institutes for smart habitats

Grapes on Mars? Georgia winemakers aiming high

Progress MS-11 reaches ISS in record time

EXO WORLDS
NASA Achieves Rocket Engine Test Milestone Needed for Moon Missions

Northrop Grumman completes 2nd test of rocket motor for ULA Atlas V

US Planning Five Hypersonic Test Programs in Marshall Islands

First 2019 Proton-M Rocket Launch From Baikonur Slated for May

EXO WORLDS
Martian soil detox could lead to new medicines

NASA's MAVEN Uses Red Planet's Atmosphere to Change Orbit

Life on Mars?

Curiosity Captured Two Solar Eclipses on Mars

EXO WORLDS
China's commercial carrier rocket finishes engine test

China launches new data relay satellite

Super-powerful Long March 9 said to begin missions around 2030

China preparing for space station missions

EXO WORLDS
Preserving heritage data at ESA

Amazon working on internet-serving satellite network

ESA and DLR in joint study to support deep space missions

Where space missions are born

EXO WORLDS
Russia's new ISS modules will be shielded with fabrics used in body armour

New virtual reality tool allows you to see the world through the eyes of a tiny primate

Debris from anti-satellite test no danger to ISS, India says

About 50 pieces of destroyed Indian satellite flying above ISS

EXO WORLDS
Building blocks of DNA and RNA could have appeared together before life began on Earth

Surviving A Hostile Planet

Exoplanet Under the Looking Glass

High School Senior Uncovers Potential for Hundreds of Earth-Like Planets in Kepler Data

EXO WORLDS
Europa Clipper High-Gain Antenna Undergoes Testing

Scientists to Conduct Largest-Ever Hubble Survey of the Kuiper Belt

Jupiter's unknown journey revealed

A Prehistoric Mystery in the Kuiper Belt









The content herein, unless otherwise known to be public domain, are Copyright 1995-2024 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. General Data Protection Regulation (GDPR) Statement Our advertisers use various cookies and the like to deliver the best ad banner available at one time. All network advertising suppliers have GDPR policies (Legitimate Interest) that conform with EU regulations for data collection. By using our websites you consent to cookie based advertising. If you do not agree with this then you must stop using the websites from May 25, 2018. Privacy Statement. Additional information can be found here at About Us.