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Aggregates contain pores of varying sizes; while some are completely enclosed within the particles, others open onto the surface, allowing water to penetrate. The porosity of aggregates is a major factor contributing to the overall porosity of concrete, given that aggregates constitute about three-quarters of concrete's volume.
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Green algae, also referred to as chlorophytes, are different from red algae in having the chloroplasts containing chlorophylls a and b, which give them their distinct green hue. However, they lack phycobiliproteins, preventing them from developing the red or blue-green pigmentation seen in red algae. In terms of photosynthetic pigment composition, green algae closely resemble plants and share a close evolutionary relationship with them. Taxonomically Green algae belong to Phylum Chlorophyta in...
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Porous materials: The next frontier in energy technologies.

Eliyahu M Farber1, Nicola M Seraphim1, Kesha Tamakuwala1

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Porous materials are key for energy technologies. Optimizing their structure enhances energy conversion by controlling mass, charge, and heat flow for better performance.

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Area of Science:

  • Materials Science, Energy Science, Chemical Engineering

Background:

  • Porous materials are critical components in diverse energy applications, including electrochemical, thermoelectric, nuclear, and solar power.
  • Their applications extend to resource extraction, such as oil, gas, and geothermal heat.

Purpose of the Study:

  • To analyze the physical processes governing energy transfer within porous structures.
  • To highlight recent advancements in the design, characterization, and modeling of porous materials for energy applications.

Main Methods:

  • Review of physical processes enabling energy transfer (mass, charge, heat, radiation, pressure).
  • Analysis of recent breakthroughs in porosity design, characterization, and modeling.
  • Examination of how optimized porosity impacts surface area per device volume.

Main Results:

  • Porous material design is crucial for efficient energy conversion by controlling energy transfer vectors.
  • Optimized pore structure design allows modulation or blocking of energy flow.
  • Advances in understanding and engineering porosity have led to significant breakthroughs in energy technologies.

Conclusions:

  • Tailoring porous material architecture is essential for advancing energy conversion efficiency.
  • Further research into porosity fundamentals will continue to drive innovation in energy solutions.
  • The review provides a comprehensive overview of porosity's role in modern energy technologies.