Super Filters the World Can Afford: Revolutionary New Materials for Troubled Carbon Times
More than 4000 years later, in a study published in Nature Energy this month, researchers from Kyoto University’s Institute for Integrated Cell-Material Sciences (iCeMS), London’s Imperial College and City University of Hong Kong, reveal how they are using this age-old method to develop similarly revolutionary new materials that will address one of the huge problems affecting the 21st century: how to capture and store carbon dioxide.
Credit: Kyoto University
“It’s easy to overlook the colossal scale of the problem,” explains Professor Easan Sivaniah, who led the study into developing Mixed Matrix Membranes (MMMs), the highly-engineered thin polymer super filters that will potentially revolutionize carbon capture and storage (CCS) technology.
“Until now polymer membrane technologies for gas separation applications have not been up to the task,” Sivaniah says. Either they are too slow, or as the paper reveals, in the case of high permeability polymers, they rarely generate sufficient ‘selectivity’ – the capability to separate gases – for energy efficient CO2 capture. This has major cost implications for implementation of membrane technologies in large-scale carbon capture projects.
“For CCS to begin to play a larger role in reality rather than simply in the models of future deployment,” Rainer concludes, “it is imperative to begin to differentiate more and less costly technologies [if] CCS is to emerge from its own Valley of Death”.
Prof. Tatsuo Masuda, the former project leader of “The Carbon Management Coalition (CMC)”, an initiative by the Global Agenda Council on Decarbonizing Energy under the World Economic Forum, emphasizes: “Emerging technologies from the most highly advanced universities, such as those developed by Professor Sivaniah in Kyoto, that address both performance and cost challenges in CCS, must be accelerated towards pilot and implementation activities, as the need for such technological breakthroughs is the highest it has ever been. It is key.”
“Like those ancient Mesopotamians, when faced with new demands we needed new revolutionary materials,” explains Sivaniah. The group, keenly aware of issues of affordability, as well as speed and selectivity, turned to MOFs. These are the nanosized additives pioneered by pre-eminent Japanese scientist Susumu Kitagawa. Incorporating these revolutionary nanosized particles into a state of the art polymer, PIM-1 originally discovered in Manchester University by Professors Peter Budd and Neil McKeown, the international team has managed to create mixed matrix membranes (MMMs) with substantial selectivity enhancements.
“We have greatly enhanced their capabilities, which means that we can potential bring huge cost reduction to large-scale CCS programs. A tenfold reduction in large project costs is not unimaginable, which may well bring CCS programs back within the realm of political acceptability”.
The Institute for Integrated Cell-Material Sciences (iCeMS) at Kyoto University in Japan aims to advance the integration of cell and material sciences, both traditionally strong fields at the university, in a uniquely innovative global research environment. ICeMS combines the biosciences, chemistry, materials science and physics to create materials for mesoscopic cell control and cell-inspired materials. Such developments hold promise for significant advances in medicine, pharmaceutical studies, the environment and industry.
Contacts and sources:
Izumi Mindy Takamiya
Prof. Easan Sivaniah
Citation: “Enhanced selectivity in mixed matrix membranes for CO2 capture through efficient dispersion of amine-functionalised MOF nanoparticles” appeared on June 5, 2017 in Nature Energy, with doi: 10.1038/nenergy.2017.86
Source: http://www.ineffableisland.com/2017/06/super-filters-world-can-afford.html
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