A new energy conversion technology joining electrochemical and physical principles

作者：Zhu, Bin; Raza, Rizwan; Liu, Qinghua; Qin, Haiying; Zhu, Zhigang; Fan, Liangdong; Singh, Manish; Lund, Peter

来源：RSC Advances, 2012, 2(12): 5066-5070.

DOI：10.1039/c2ra01234k

• FUEL-CELLS
• ELECTROLYTE
• CONDUCTION

We report a new energy conversion technology joining electrochemical and physical principles. This technology can realize the fuel cell function but built on a different scientific principle. The device consists of a single component which is a homogenous mixture of ceria composite with semiconducting materials, e.g. LiNiCuZn-based oxides. The test devices with hydrogen and air operation delivered a power density of 760mWcm(-2) at 550 degrees C. The device has demonstrated a multi-fuel flexibility and direct alcohol and biogas operations have delivered 300-500 mW cm(-2) at the same temperature. Device physics reveal a key principle similar to solar cells realizing the function based on an effective separation of electronic and ionic conductions and phases within the single-component. The component material multi-functionalities: ion and semi-conductions and bi-catalysis to H-2 or alcohol (methanol and ethanol) and air (O-2) enable this device realized as a fuel cell.

• 出版日期2012