Stanford engineers have developed an efficient photoelectrochemical cell (PEC) that uses a mixed ion electron conductor (MIEC) heterojunction to enable high temperature (hundreds of oC) conversion of concentrated sunlight to chemical fuel (such as hydrogen).
Engineers in Prof. Arunava Majumdar's laboratory have formulated high-entropy phase-change materials that can split water to produce hydrogen at moderate temperatures using a scalable, carbon-free process.