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Related Concept Videos

Potential Energy00:52

Potential Energy

The energy stored by a structure and location of matter in space is called potential energy. For instance, raising a kettlebell changes its spatial location and increases its potential energy. Similarly, a stretched rubber band contains potential energy which, under certain conditions, can be converted into other forms of energy, such as kinetic energy.
Chemical bonds that form attractive forces between atoms also contain potential energy, called chemical energy. When a chemical reaction...
Energy00:58

Energy

The universe is composed of matter in different forms, and all forms of matter contain energy.  The different forms of energy on Earth originate from the Sun—the ultimate energy source. For instance, plants capture light energy from the Sun, and through the process of photosynthesis, convert it into chemical energy. This stored energy from plants can be harnessed in many ways. For example, eating plant products as food provides energy for our body to function, and burning wood or coal...
Production of Organic Acids01:25

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Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...
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Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...
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The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...

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Updated: May 11, 2026

A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions
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Solar Hydrogen Production and Storage in Solid Form: Prospects for Materials and Methods.

Kathalingam Adaikalam1, Dhanasekaran Vikraman2, K Karuppasamy2

  • 1Millimeter-Wave Innovation Technology Research Center, Dongguk University-Seoul, Seoul 04620, Republic of Korea.

Nanomaterials (Basel, Switzerland)
|October 15, 2024
PubMed
Summary

Transitioning to clean hydrogen energy is vital for carbon neutrality. This review explores efficient solar hydrogen generation and solid-state storage, crucial for a sustainable energy future.

Keywords:
hydrogen energyhydrogen fuel cellshydrogen storagephotoelectrochemical water-splittingsolar hydrogensolid hydrogen storagewater-splitting

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Area of Science:

  • Renewable Energy Technologies
  • Materials Science
  • Environmental Science

Background:

  • Global climate change necessitates a shift to clean energy sources.
  • Hydrogen is a promising carbon-neutral energy carrier, but faces storage and transportation challenges.
  • Current hydrogen production methods are often energy-intensive or rely on fossil fuels.

Purpose of the Study:

  • To review advancements in solar hydrogen generation via water splitting.
  • To explore solid-state hydrogen storage solutions for improved safety and cost-effectiveness.
  • To assess the feasibility of integrated solar hydrogen production and utilization systems.

Main Methods:

  • Comprehensive literature review of solar water splitting techniques.
  • Analysis of various materials for efficient hydrogen generation and solid storage.
  • Evaluation of solid oxide fuel cells (SOFCs) for hydrogen utilization.
  • Focus on achieving global standards like 6.5 wt% gravimetric capacity.

Main Results:

  • Solar hydrogen production offers a cost-effective and environmentally friendly alternative.
  • Solid hydrogen storage presents a safe and efficient method, overcoming limitations of compressed gas.
  • Materials development is key to optimizing hydrogen generation and storage efficiency.
  • Integrated systems show potential for efficient, safe, and cost-effective energy conversion.

Conclusions:

  • Solar hydrogen generation coupled with solid storage is a viable pathway to carbon neutrality.
  • Continued research in materials science is essential for enhancing performance and scalability.
  • The integration of solar hydrogen technologies with fuel cells offers a sustainable energy solution.