Subscribe free to our newsletters via your
. Space Industry and Business News .




TECH SPACE
Grooving Crystal Surfaces Repel Water
by Staff Writers
Kyoto, Japan (SPX) Sep 10, 2014


Masakazu Higuchi and Susumu Kitagawa.

Researchers from Kyoto University in Japan have developed a novel way to waterproof new functionalized materials involved in gas storage and separation by adding exterior surface grooves. Their study, published in the journal Angewandte Chemie, provides a blueprint for researchers to build similar materials involved in industrial applications, such as high performance gas separation and energy storage.

The materials, also known as porous coordination polymers (PCPs), are hollow nanoscale cage-like structures with the ability to house molecules within their empty cavities. This behavior is particularly useful when selectively isolating chemicals of interest from mixtures such as gases.

However, one drawback of using PCPs and other materials typically created in the laboratory, is their practical use in natural situations where water is abundantly present.

"These materials are highly reactive with water, leading to their instability and subsequent decomposition," said Masakazu Higuchi, who was involved in the study.

"Thus, in order to use them in real life situations, we need to develop PCPs with the ability to keep water out while allowing organic molecules of interest in."

To do this, the scientists -- from Kyoto University's Institute for Cell-Material Sciences (iCeMS) -- designed grooves onto the exterior surface of PCPs, thereby introducing a rough texture that in turn highly repelled water. At the same time, organic substances could enter PCPs based on size, demonstrating selectivity.

"The new PCPs we synthesized were highly stable, and incredibly water resistant as they specifically removed organic solvents like benzene and toluene from mixed solutions," said Koya Prabhakara Rao, another author involved in the study.

"Our method is the first to be conducted at the nanoscale, and serves as a simpler means to maintain functional properties of PCPs while preventing them from breaking down in the presence of water," said iCeMS Director Susumu Kitagawa, who was the principal investigator of the study.

.


Related Links
Institute for Integrated Cell-Material Sciences (iCeMS)
Space Technology News - Applications and Research






Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

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




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News





TECH SPACE
A Metallic Alloy That is Tough and Ductile at Cryogenic Temperatures
Berkeley CA (SPX) Sep 10, 2014
A new concept in metallic alloy design - called "high-entropy alloys" - has yielded a multiple-element material that not only tests out as one of the toughest on record, but, unlike most materials, the toughness as well as the strength and ductility of this alloy actually improves at cryogenic temperatures. This multi-element alloy was synthesized and tested through a collaboration of researcher ... read more


TECH SPACE
Not just cool - it's a gas

Where to grab space debris

Grooving Crystal Surfaces Repel Water

U.S. military taps Northrop Grumman for new technology

TECH SPACE
Middle East entity orders Harris tactical radios

FirstNet-related Tactical LTE Communications System at Urban Shield Exercise

Intelsat General Extends Contract to Provide Satellite Capacity to Forces in Afghanistan

UAE contracts for enhanced tactical communications

TECH SPACE
NASA's Wind-Watching ISS-RapidScat Ready for Launch

Proton Launches May Compete on Price With US Falcons

SpaceX's next cargo launch set for Sept 20

MEASAT-3b and Optus 10 given go-ahead for Ariane 5 Sept 11 launch

TECH SPACE
Thales to improve GPS satellite navigation system

Exelis boasts of its GPS signal interference product

Lockheed Martin-Built gps IIR/IIR-M satellites reach 200 years of combined operational life

Australia approves GPS project

TECH SPACE
IBC Engineered Materials to Supply BeralCast Castings for F-35

Congress notified of possible helo sale to Brazil

Flight MH17 hit by numerous 'high energy objects'

Singapore has full fleet of Alenia Aermacchi trainer planes

TECH SPACE
A single molecule diode opens up a new era for sustainable and miniature electronics

Atomically thin material opens door for integrated nanophotonic circuits

Method detects prize particle for future quantum computing

Program Grows Lasers Directly on Silicon-Based Microchips

TECH SPACE
Severe flooding in Northern Pakistan photographed by NASA

EIAST announces Remote Sensing Applications Competition 2014

NASA's RapidScat: Some Assembly Required - in Space

NASA Awards Ozone Mapping and Profiling Suite Modification for JPS-2 Mission

TECH SPACE
Plastic pollution choking Australian waters: study

Mexico mine sets aside $147 mn for spill damages

A Mexican plant could lend the perfume industry more green credibility

Proposed trash plant sparks protests in southern China




The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - 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. 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. Privacy Statement All images and articles appearing on Space Media Network have been edited or digitally altered in some way. Any requests to remove copyright material will be acted upon in a timely and appropriate manner. Any attempt to extort money from Space Media Network will be ignored and reported to Australian Law Enforcement Agencies as a potential case of financial fraud involving the use of a telephonic carriage device or postal service.