Researchers achieve superionic hydride ion conduction at ambient temperatures nature
Materials that can conduct negatively charged hydrogen atoms in ambient conditions could pave the way for advanced clean energy storage and electrochemical conversion technologies. A research team from the Dalian Institute of Chemical Physics of the Chinese Academy of Sciences demonstrated a technique that enables a room-temperature all-solid-state hydride cell by introducing and exploiting defects in the lattice structure of rare earth hydrides.
With strong reducibility and high redox potential, hydride ion conductors have emerged as promising candidates for this technology. Several Hconductors have already been developed in recent years, including alkaline earth metal hydrides and oxyhydrides of alkaline earth and rare earth metals, which are known for fast hydrogen migration.
Strategies to enhance electronic conductivities typically seek to diminish crystallographic imperfections for applications like metallic nanowire interconnects and nanostructured photovoltaic semiconductors. In this study, however, the research team purposely created abundant discrete nanosized grains and lattice defects to disturb the path of electron transport in REHand suppress the electronic conductivity.
"By creating nano-sized grains, defects and other crystalline mismatched zones in a known ionic-electronic mixed conductor, we demonstrated that the electronic conductivity of LaH can be largely suppressed by five orders of magnitude," said Chen."Engineering such a material could transform LaHinto a pure hydride ion conductor with record high conductivities in the temperature range of -40℃ to 80℃.
"This work demonstrates the effectiveness of lattice deformation in suppressing electron conduction in REHThe researchers plan to explore the physics underneath the phenomenon and extend the method developed in this study to other hydride
South Africa Latest News, South Africa Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
US And Japan Enter Into Electric Car Battery Materials Trade DealWith new rules in the US related to the $7,500 federal EV tax credit, a trade deal is a workaround that can help both sides.
Read more »
Reader Institute for Community Journalism CareersWe're hiring! • Digital Editor • News Editor • Managing Editor • Racial Justice Reporter NABJCC nahj_chi aaja najournalists nlgja AltWeeklies studyhallxyz AWJ_Chicago womenjournos CJA_Updates city_bureau spj_tweets ONA hiring
Read more »
UChicago's Oriental Institute changes name to Institute for the Study of Ancient Cultures, West Asia & North AfricaThe U of C reported the change is intended to reflect the geographic focus of the research and scholarship conducted by institute.
Read more »
Researchers Set a New Record for the Deepest Fish Ever FilmedResearchers have recorded a fish swimming at a depth of more than eight kilometers, setting a record for the deepest fish ever caught on camera.
Read more »
Why researchers surveyed more than 1.1 billion objects across 73 museumsIt maps the entire collections of 73 of the world’s largest natural history museums across 28 countries.
Read more »
Derailed train in Montana spills Coors Light and Blue Moon beer into riverNo hazardous materials were released, according to authorities.
Read more »