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Search results for “Fuel Cells”

1,000+ results for "Fuel Cells"

A methodology for regulating fuel stratification and improving fuel economy of GCI mode via double main-injection strategy

A new double main-injection (DMI) strategy has been proposed to regulate fuel stratification in Gasoline Compression Ignition (GCI) mode, improving fuel economy and reducing emissions. The study found that simultaneous main-injection and exhaust gas recirculation can achieve rapid fuel supply and control of combustion.

SourceHigher Education Press·JournalFrontiers in Energy·TypeExperimental study·DateJan 10, 2024

New material allows for better hydrogen-based batteries and fuel cells

Researchers have developed a solid electrolyte that allows for efficient hydride ion conduction at room temperature, enabling the creation of safer, more efficient hydrogen-based batteries and fuel cells. This breakthrough provides material design guidelines for the development of next-generation energy storage solutions.

SourceRIKEN·JournalAdvanced Energy Materials·DateDec 21, 2023

Emissions and evasions

A new study found that fossil fuel companies rarely respond to online discussions about extreme weather, but instead engage with sustainability initiatives and corporate efforts. Climate misinformation can fuel denialism and delay action, emphasizing the need for understanding how it's designed and spread.

SourceUniversity of Cambridge·Journalnpj Climate Action·TypeData/statistical analysis·DateDec 20, 2023

A PEM fuel cell inspired by the structure of a lung

Researchers at the University of Seville have developed a bioinspired PEM fuel cell design that improves the distribution of liquid water inside these batteries. This approach has the potential to significantly enhance the efficiency and durability of PEM fuel cells, leading to more efficient and sustainable energy systems.

SourceUniversity of Seville·JournalElectrochimica Acta·DateDec 19, 2023

Understanding the relationship between the performance of Proton Exchange Membrane Fuel Cells and hydrogen partial pressure

Researchers have made significant strides in understanding the relationship between hydrogen partial pressure and PEMFC performance, revealing a pronounced decline in performance as hydrogen partial pressure decreased. The study aims to simplify fuel cell quality testing, cost reduction, and reduced safety requirements.

SourceIndustrial Chemistry & Materials·JournalIndustrial Chemistry and Materials·TypeExperimental study·DateDec 18, 2023

Efficient biohybrid batteries

Researchers developed a fast-charging hybrid battery system that combines electrochemical generation of formic acid with a microbial fuel cell, enabling efficient energy storage. The system produced enough current for 25 hours of discharge and demonstrated potential applications in monitoring water toxicity.

SourceWiley·JournalAngewandte Chemie International Edition·TypeExperimental study·DateOct 31, 2023

Generating clean electricity with chicken feathers

Scientists at ETH Zurich have developed a new, environmentally friendly fuel cell membrane made from chicken feathers. The keratin-based membrane replaces toxic substances and reduces carbon emissions. This breakthrough could enable the widespread adoption of hydrogen power as a sustainable energy source.

SourceETH Zurich·JournalInterfaces·DateOct 20, 2023

Synergistic work of cations in anion exchange membranes for OH- transport in fuel cells

Researchers developed a poly(p-terphenyl isatin) anion exchange membrane with quaternary ammonium and piperidine cations that provides excellent mechanical properties and OH-ion conductivity. The material's stability and tensile strength reach new heights, paving the way for industrialized application of anion-exchange membranes.

SourceIndustrial Chemistry & Materials·JournalIndustrial Chemistry and Materials·TypeExperimental study·DateSep 30, 2023

Visualizing the current distribution inside fuel cells and achieving stable operation via non-destructive diagnostics using magnetic sensors

This study uses magnetic sensors to detect and control fuel cell malfunctions. By visualizing the current distribution in real-time, the system can stabilize voltage while controlling bias, enabling stable fuel cell operation. The team aims to develop a comprehensive diagnostic and control system for real-world applications.

SourceUniversity of Tsukuba·JournalApplied Energy·DateSep 22, 2023

Efficient fuel-molecule sieving using graphene

Researchers developed a graphene-based proton-exchange membrane that successfully suppresses the crossover phenomenon, allowing for high proton conductivity while blocking fuel molecule penetration. This study contributes to the development of advanced fuel cells as an alternative to hydrogen-type fuel cells.

SourceUniversity of Tsukuba·JournalAdvanced Science·DateSep 22, 2023

Predictive model could improve hydrogen station availability

A new predictive model could help reduce unscheduled maintenance at hydrogen stations, increasing availability and consumer confidence. The model uses prognostics health monitoring to predict component failures and estimate remaining useful life, allowing station operators to schedule maintenance when demand is low.

SourceDOE/National Renewable Energy Laboratory·JournalInternational Journal of Hydrogen Energy·TypeMeta-analysis·DateSep 19, 2023

New photocatalytic system converts carbon dioxide to valuable fuel more efficiently than natural photosynthesis

A joint research team from City University of Hong Kong and collaborators developed a stable artificial photocatalytic system that mimics natural chloroplasts to convert carbon dioxide into methane, a valuable fuel, very efficiently using light. The new system achieved a highly efficient solar-to-fuel efficiency rate of 15%, surpassing...

SourceCity University of Hong Kong·JournalNature Catalysis·TypeExperimental study·DateAug 3, 2023

Novel proton-conductive membranes for automobile fuel cells

Scientists have synthesized proton-conductive membranes based on partially fluorinated aromatic ionomers, which exhibit high durability and ion conductivity. These membranes outperform existing ones in fuel-cell operation, chemical stability, and mechanical properties, paving the way for more powerful and affordable electric vehicles.

SourceWaseda University·JournalScience Advances·TypeExperimental study·DateAug 3, 2023

Joint research team from Korea and Germany seeks to enhance production efficiency of fuel cells with laser machining technology

A joint Korean-German research team has developed a new laser machining technology for fuel cells that enables simultaneous welding and cutting of thin bipolar plates. The technology uses a scanner with real-time cross-coupling control to improve machining accuracy and reduce costs.

Ba2LuAlO5: A new proton conductor for next-generation fuel cells

Scientists at Tokyo Institute of Technology have discovered a new proton conductor, Ba2LuAlO5, which shows high proton conductivity even without modifications. The material's unique structure and water absorption properties make it ideal for protonic ceramic fuel cells, promising a bright future for sustainable energy generation.

SourceTokyo Institute of Technology·JournalCommunications Materials·TypeExperimental study·DateJun 6, 2023

Small-scale proton exchange membrane fuel cells: A challenging but promising path toward clean energy

Researchers from Tianjin University provide an insightful review of proton exchange membrane fuel cells (PEMFCs) for small-scale applications. The study highlights the unique attributes of PEMFCs, such as high energy densities and low pollution emissions, making them suitable for portable power generation, unmanned aerial vehicles, and...

SourceCactus Communications·JournalEnergy Reviews·TypeLiterature review·DateMay 24, 2023

Nagoya University researchers in Japan develop a new ultra-high-density sulfonic acid polymer electrolyte membrane for fuel cells

Nagoya University researchers have developed a poly(styrenesulfonic acid)-based PEM with an ultrahigh density of sulfonic acid groups, exceeding five times that of typical commercially available membranes. The new membrane exhibits a proton conductivity of 0.93 S/cm at 80°C under 90%RH, six times higher than Nafion or Selemion under th...

SourceNagoya University·JournalACS Applied Polymer Materials·DateApr 19, 2023

Probe where the protons go to develop better fuel cells

A team led by Professor Yoshihiro Yamazaki from Kyushu University discovered the chemical innerworkings of a perovskite-based electrolyte developed for solid oxide fuel cells. By combining synchrotron radiation analysis, large-scale simulations, machine learning, and thermogravimetric analysis, they found that protons are introduced at...

SourceKyushu University·JournalChemistry of Materials·TypeExperimental study·DateMar 28, 2023

Generating power with blood sugar

A team of researchers at ETH Zurich has created an implantable fuel cell that uses excess blood sugar to generate electrical energy. The device powers artificial beta cells that produce insulin, effectively regulating blood glucose levels.

SourceETH Zurich·JournalAdvanced Materials·TypeExperimental study·DateMar 28, 2023

Public acceptance of fossil fuel subsidy removal could be improved in developing countries

A recent study by the University of Gothenburg found that public acceptance of fossil fuel subsidy removal could be improved in developing countries if the revenue is invested in social and economic development. The researchers analyzed attitudes towards removing subsidies on fossil fuels in five developing countries, including Ecuador...

SourceUniversity of Gothenburg·JournalNature Climate Change·TypeSurvey·DateMar 21, 2023

Just 10 financial actors hold the key to climate change

A new report identifies the top 10 financial actors influencing the fossil fuel economy and outlines their decisive role in helping de-carbonize our future. The study suggests that these influential actors, including investment advisors and governments, can make transformative changes to reduce fossil fuel production.

SourceUniversity of Waterloo·JournalEnvironmental Innovation and Societal Transitions·DateJul 21, 2022