Powering the Future: China’s Superionic Hydride Ion Conductor Breakthrough
The date of：
2023-04-26
viewed:
24
With strong reducibility and high redox potential, the hydride ion (H-) is a reactive hydrogen species and an energy carrier. Materials that conduct pure H- at ambient conditions will be enablers of advanced clean energy storage and electrochemical conversion technologies.Several H- conductors have already been developed in recent years, but none of the materials could achieve superionic conduction at ambient conditions.The research team targeted the structure and morphology of trihydrides — hydrides containing three atoms of hydrogen per molecule — of certain rare earth elements (REHx), including Lanthanum (La), according to a research paper published in the journal Nature.They innovatively adopted the mechanical ball milling method and deformed lanthanum trihydride (LaHx) through impact and shear force, according to the paper.By creating nanosized grains and defects in the LaHx lattice, the electronic conductivity of LaHx can be suppressed by more than five orders of magnitude. This transforms LaHx into a superionic conductor with record high conductivities at the ambient temperatures — minus 40 degrees Celsius to 80 degrees Celsius.The researchers plan to explore the physics underneath the phenomenon and extend the method developed in the study to other hydride materials to broaden the material scope for pure H- conductors.For more on this breakthrough, see A New Era of Superionic Hydride Conduction at Room Temperature.
Hot News
/
Related to recommend
2026
-
09
-
24
Click on the number of times:
0
来源：ACS PublicationsAlkaline hydrogen oxidation reaction (HOR) is the bottleneck restricting the performance of anion-exchange membrane fuel cells (AEMFCs), originating from sluggish Volmer kinetics in...
2026
-
09
-
23
Click on the number of times:
0
来源：ACS PublicationsRare-earth ions are pivotal for integrated photonic light sources, but their low optical transition cross sections inherently limit pump absorption efficiency and spontaneous emissi...
2026
-
09
-
23
Click on the number of times:
0
来源：ACS PublicationsThe production of energy-efficient technologies and advanced electronics requires high-purity critical minerals, such as individually separated rare earth elements (REEs). Chemical ...
2026
-
09
-
22
Click on the number of times:
0
来源：ACS PublicationsSkin wounds usually cause delayed wound healing or infection due to the invasion of microorganisms, which seriously endangers human life and health. In the process of first aid and ...