Might hydrogen prove to be an indispensable tool in enabling renewable energy to power our planet? But there is some urgency. Combining clean energy sources with electrolysis is already cost competitive for producing gas for niche applications. Chemical companies are making their plants and processes increasingly digital, data-driven and interconnected. David Comment avatar Commented on: 4 September Carbon capture and storage from coal is completely impractical, for reasons that were clearly set out in a letter by Owen Jordan of West Glamorgan to New Scientist in yep, ten years ago.
He pointed out that emissions of methane, CO and CO2 from opencast workings begin as soon as overburden above the coal seams is stripped away. These gases alone account for about twice the emissions of the burning of the mined coal. Moreover, shale and mudstone that are dug out along with the coal have a high carbon content, but are not burnable because of the high ash content. This carbon also oxidises if exposed to air, emitting another three or four times the emissions of the mined coal.
We cannot continue to give any more thought to this dangerous and expensive blind alley, or to the apologists for coal.
Unsuitable or offensive? Peter Comment avatar Commented on: 4 August Despite multiple CCS demonstration projects at Australian coal-fired power stations, none of Australia's coal plants are currently capturing CO2 or have a time frame for doing so. Australian Treasury modelling finds that CCS is not expected to be commercially viable until the s.
The program had already been cut by the previous Labor government and much of the funding remained unallocated. An eye-opening visit to a waste water treatment works uncovers the surprising value in sewage. Hayley Bennett reports. Angeli Mehta talks to the scientists trying to reduce it. Many clinics around the world offer unproven treatments, while genuine therapies are slowly making their way through trials. Anthony King reports.
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Related Articles. Research Low wind power costs pump up hydrogen economy prospects 26 February Combining clean energy sources with electrolysis is already cost competitive for producing gas for niche applications. Business Industry delves into the digital toolbox 17 September Chemical companies are making their plants and processes increasingly digital, data-driven and interconnected. Research Can organic solar cells stand the test of time? Load more articles. Have your say You're not signed in.
To link your comment to your profile, sign in now. Only registered users can comment on this article. Sign in Register. David Comment avatar Commented on: 4 September Carbon capture and storage from coal is completely impractical, for reasons that were clearly set out in a letter by Owen Jordan of West Glamorgan to New Scientist in yep, ten years ago.
Peter Comment avatar Commented on: 4 August "Japan More Features. Feature Sewage sells: the hidden value of wastewater 23 September An eye-opening visit to a waste water treatment works uncovers the surprising value in sewage. By emphasizing cross-cutting research directions, and promoting broad interdisciplinary efforts, strong coordination between the basic and applied sciences, and cooperation among BES and the Offices of Energy Efficiency and Renewable Energy, Fossil Energy and Nuclear Energy, scientific breakthroughs in one area can be leveraged to advance progress in others.
This integrated approach will ensure that discoveries and related conceptual breakthroughs achieved in basic research programs will provide a foundation for the innovative design of materials and processes that will produce improvements in the performance, cost, and reliability of hydrogen production, storage, and use. On-board hydrogen storage is considered to be the most challenging aspect for the successful transition to a hydrogen economy.
Basic research is essential for identifying novel materials and processes that can provide potential breakthroughs needed to meet the Hydrogen Fuel Initiative HFI goals. Complex hydrides. A basic understanding of the physical, chemical, and mechanical properties of metal hydrides and chemical hydrides is needed. Nanostructured materials.
International Journal of Hydrogen Energy
Other materials. Research is needed to explore other novel storage materials, e. Theory, modeling, and simulation. Theory, modeling, and simulation will enable 1 understanding the physics and chemistry of hydrogen interactions at the appropriate size scale and 2 the ability to simulate, predict, and design materials performance in service. Novel analytical and characterization tools.
Sophisticated analytical techniques are needed to meet the high sensitivity requirements associated with characterizing hydrogen-materials interactions while maintaining high specificity. Membranes that selectively transport atomic, molecular, or ionic hydrogen and oxygen are vital to the hydrogen economy as they purify hydrogen fuel streams, transport hydrogen or oxygen ions between electrochemical half-reactions, and separate hydrogen in electrochemical, photochemical, or thermochemical production routes.
Integrated nanoscale architectures. The similar nanoscale dimensions of catalyst particles and of pores that transport fuel, ions, and oxygen hold promises to enable gas diffusion layers, catalyst support networks, and electrolytic membranes in fuel cells to be integrated into a single network for ion, electron, and gas transport. Fuel cell membranes. Novel membranes with higher ionic conductivity, better mechanical strength, lower cost, and longer life are critical to the success of fuel cell technologies.
Mitsubishi Heavy Industries BrandVoice: How Hydrogen Fuel Cells Can Power The World
In most designs, the catalyst in the cathode and anode layers is based on platinum Pt , a very costly precious metal. Unless the Pt content is reduced, it will represent a larger portion of the cost as manufacturing volumes increase. Therefore, platinum is a potential limiting factor in the widespread adoption of fuel cells, and much focus has been placed on reducing Pt content. This new fuel cell design:. At Ballard, where we have over 35 years of experience in fuel cell development for real world applications, we are working on the cathode and anode layers to improve both performance and durability.
Choosing the right fuel cell system for your organization is key.
In the video below, learn 5 effective tips for doing so. It is known that cathode catalyst performance can be improved by alloying metals such as cobalt and nickel with platinum. However, these metals are not stable in the fuel cell environment: they can leach out during operation, leading to performance losses. We have overcome this problem with a novel catalyst layer design that achieves higher performance with greater durability than conventional catalyst layers.
Our high performing design results in a 5x durability improvement compared to a more conventional design using the same alloy catalyst. Ballard continues to actively research and achieve exciting results with advanced catalysts for better performance and durability, while supporting our goal of further reducing Pt content in our fuel cells. In our laboratory, some very promising next-generation catalyst designs are delivering up to 17x higher activity than conventional platinum catalysts.
We are also working closely with many of the leading fuel cell academic researchers.