Chemists at The University of Texas at Arlington have been the first to demonstrate that an organic semiconductor polymer called polyaniline is a promising photocathode material for the conversion of carbon dioxide into alcohol fuels without the need for a co-catalyst.
“This opens up a new field of research into new applications for inexpensive, readily available organic semiconducting polymers within solar fuel cells,” said principal researcher Krishnan Rajeshwar, UTA distinguished professor of chemistry and biochemistry and co-Director of UTA’s Center for Renewable Energy, Science & Technology.
“These organic semiconducting polymers also demonstrate several technical advantages, including that they do not need a co-catalyst to sustain the conversion to alcohol products and the conversion can take place at lower temperatures and use less energy, which would further reduce costs,” Rajeshwar added.
Rajeshwar and his co-author Csaba Janaky, professor in the Department of Physical Chemistry and Materials Science at the University of Szeged, recently published their findings in The Royal Society of Chemistry journal ChemComm as
In this proof-of-concept study, the researchers provide insights into the unique behavior of polyaniline obtained from photoelectrochemical measurements and adsorption studies, together with spectroscopic data. They also compared the behavior of several conducting polymers.
The stationary currents recorded after two hours during testing suggests that the polyaniline layer maintained its photoelectrochemical efficacy for the studied time period. While in the gas phase, only hydrogen was detected, but potential fuels such as methanol and ethanol were both detected in the solution for carbon dioxide-saturated samples.
“Apart from these technical qualities, as a polymer, polyaniline can also be easily made into fabrics and films that adapt to roofs or curved surfaces to create the large surface areas needed for photoelectrochemical reduction, eliminating the need for expensive and dangerous solar concentrators,“ Rajeshwar added.
Frederick MacDonnell, chair of UTA’s Department of Chemistry and Biochemistry, underlined the importance of this research in the context of UTA’s focus on global environmental impact within the Strategic Plan 2020: Bold Solutions|Global Impact.
“Dr. Rajeshwar’s ongoing leadership in research around new materials for solar fuel generation is vital in a world where we all recognize the need to reduce the impact of carbon dioxide emissions,” MacDonnell said. “Finding an inexpensive, readily-available photocathode material could open up new options to create cheaper, more energy-effective solar fuel cells.”
The Latest on: Solar fuel cell
via Google News
The Latest on: Solar fuel cell
- The superpowers of super-thin materialson January 11, 2020 at 5:06 am
“What if we did energy harvesting from solar cells inside highways, and had strain sensors embedded in tunnels ... Urban is working with 2D materials to improve fuel cells, which have drawn interest ...
- Is Solar All That ‘Green’? Here’s Why IIT-Hyd Thinks Geothermal Energy Is More Eco-Friendlyon January 11, 2020 at 12:08 am
“A Solar PV cell involves two important stages: i ... Administration (US-EIA), geothermal plants emit 97% less acid rain-causing sulfur compounds and about 99% less carbon dioxide than fossil fuel ...
- Peck: An Actually Profitable Renewable Energy Stock To Watch In 2020on January 10, 2020 at 10:51 am
Stocks like FuelCell Energy, Inc. (FCEL) and Plug Power Inc. (PLUG) have been on fire recently thanks to increased investor interest in hydrogen and fuel cell power generation systems. However, other ...
- Toyota Envisions Hydrogen-Powered ‘Woven City’ by Mt. Fujion January 10, 2020 at 8:39 am
Toyota wants to give it a try with Woven City, a 175-acre site at the base of Mount Fuji, 90 miles southwest of Toyota’s Tokyo headquarters. There will be hydrogen fuel cells and rooftop solar panels ...
- Spread across 175 acres, the "Woven City" will initially house 2,000 people including scientists, engineers and industry partnerson January 10, 2020 at 6:12 am
Forward-looking: Hydrogen fuel cells and rooftop solar panels will be powering Toyota's "Woven City," a project announced by the company this week at CES. With construction set to begin next year, the ...
- Geothermal energy better than solar power: IIT-Hyderabad and Australian varsity joint studyon January 9, 2020 at 8:27 pm
The researchers also suggest that a combination of renewable energy technology must be adopted in this era of dwindling fossil fuel reserves and increasing greenhouse gas emissions ... The total CO2 ...
- Irish solar farms with 500MW capacity announced by Danish collaborationon January 8, 2020 at 2:47 am
Creating 1,000 jobs in its development, the farms are set to produce a total of 500MW of electricity using specially manufactured solar cells. Sites in Cork, Galway, Longford, Tipperary and Westmeath ...
- JinkoSolar Partners With SISP to Develop Solar Cell to Be Used for Space Applicationon January 7, 2020 at 6:23 am
This partnership between two elite solar companies will fuel much needed development ... jinkosolar-partners-with-sisp-to-develop-solar-cell-to-be-used-for-space-application-300982742.html ...
- Researchers split water into hydrogen and oxygen using solar energyon January 6, 2020 at 8:05 am
The system contains a two-layer solar cell, known as a Tandem cell, “which enables a more efficient use of the ... Being able to split water into hydrogen and oxygen using solar energy “provides a way ...
via Bing News