“The most crucial result of this work is the correlation between form and function in supercapacitor materials,” states first author Dina Ibrahim Abouelamaiem. She elaborates that “our research is driven by the need for a greener future and improved energy systems”, which is why their Sustainable Energy Fuels paper focuses on understanding how the 3D structure affects the supercapacitor properties of biocarbon-based materials derived from plant cellulose. These materials could provide an environmentally-friendly alternative to precious metals and toxic chemicals currently used in top-performing supercapacitors.
Powering the future
Supercapacitors are devices full of potential, often quite literally, as they are charged to exhibit high power densities and long lifetimes. Due to these properties, supercapacitors are able to bridge the gap in device performance between batteries and fuel cells. Understanding the nanostructure in depth and over multiple length scales is paramount to optimize performance and design better devices. By combining an extensive set of complementary techniques, Ibrahim and her colleagues have shed light on the complex synergy between structure and performance, and show what electrode materials really need a hierarchical porous network to function most effectively.
In their study, biocarbon electrodes activated using potassium hydroxide act as a model system, and the findings are also tested against commercial materials to demonstrate wider applicability.
Image Credit: Dina Ibrahim Abouelamaiem
News This Week
Researchers from Hong Kong Baptist University (HKBU), in collaboration with Cornell University, have developed a novel targeted therapy for triple-negative breast cancer (TNBC) that uses a specially-designed nano-carrier to deliver the Chinese medicine compound [...]
By early 2020, concern was mounting about a new, deadly coronavirus first detected in Wuhan, China. The World Health Organization had declared the coronavirus outbreak a global health emergency just days before. There had been [...]
As a COVID-19 and medical device researcher, I understand the importance of face masks to prevent the spread of the coronavirus. So I am intrigued that some mask manufacturers have begun adding graphene coatings [...]
Swansea University scientists have uncovered potentially dangerous chemical pollutants that are released from disposable face masks when submerged in water. The research reveals high levels of pollutants, including lead, antimony, and copper, within the [...]
Bowel cancer survival rates could be improved if chemotherapy drugs were delivered via tiny nanoparticles to the diseased organs rather than oral treatment. That's the finding from Indian and Australian scientists who have undertaken [...]
Pfizer CEO Albert Bourla says his company’s experimental COVID-19 treatment, a pill that can be taken at the first sign of the illness, could be available before the end of the year. Speaking on CNBC, Bourla said clinical [...]
At the University of Chicago, scientists have developed an absolutely innovative, promising treatment for COVID-19 in the form of nanoparticles with the ability to trap SARS-CoV-2 viruses inside the body and use the body’s [...]
Australian researchers have identified neutralizing nanobodies that block the SARS-CoV-2 virus from entering cells in preclinical models. The discovery paves the way for further investigations into nanobody-based treatments for COVID-19. Published in PNAS, the research [...]
Someday, scientists believe, tiny DNA-based robots and other nanodevices will deliver medicine inside our bodies, detect the presence of deadly pathogens, and help manufacture increasingly smaller electronics. Researchers took a big step toward that [...]
Experts have discovered what they believe is the world’s most mutated COVID strain – and there’s one detail in particular that has scientists worried. Scientists have detected what is believed to be the world’s [...]
SARS-CoV-2, the virus that causes COVID-19, likely does not directly infect the brain but can still inflict significant neurological damage, according to a new study from neuropathologists, neurologists, and neuroradiologists at Columbia University Vagelos [...]
ANSTO has contributed to a comprehensive investigation of a promising type of nanoparticle that could potentially be used for intractable brain cancers in a combined therapy. The study, which was led by Dr. Moeava [...]
The immune response needed to protect people against reinfection with the coronavirus will be explored in a new human challenge trial, researchers have revealed. Human challenge trials involve deliberately exposing healthy people to a [...]
Researchers from Duke University are developing a flu shot with the new technology that was used for two coronavirus vaccines. Both the Pfizer-BioNTech and the Moderna shots use part of the virus's genetic code [...]
Researchers from the University of Liverpool have shown the potential of repurposing an existing and cheap drug into a long-acting injectable therapy that could be used to treat Covid-19. In a paper published in the journal Nanoscale, [...]