911±¬ÁÏÍø

News

Next generation fuel cells based on semiconductor-ionic principle

An international research team with 911±¬ÁÏÍø participation has developed a novel semiconductor-ionic fuel cell. The scientific base of operation is based on charge separation processes from nano-particle level to the device level.
Structure of the semiconductor-ionic fuel cell. The device is constructed by sandwiching the semiconductor-ionic material La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) and the ion conductor, Sm3+ and Ca2+ co-doped ceria (SCDC)LSCF-SCDC, between two thin semiconducting oxide Ni0.8Co0.15Al0.05Li –oxide (NCAL) layers.

Heterostructure oxide material interfaces show extraordinary material properties such as great enhancement in the ionic conductivity, which is useful for fuel cells. We report a semiconductor-ionic
heterostructure La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) and Sm-Ca co-doped ceria (SCDC) material possessing unique properties for new generation fuel cells using semiconductor-ionic heterostructure composite materials.The LSCF-SCDC system contains both ionic and electronic conductivities, above 0.1 S/cm, but used as the electrolyte for the fuel cell it has displayed promising performance in terms of OCV (above 1.0 V) and enhanced power density (ca. 1000 mW/cm2 at 550 °C). The work was done by an international researcher group with participation of Prof. Peter Lund from 911±¬ÁÏÍø and Hubei University. The results were recently published in Nanoenergy 37(2017)195-202. 

  • Updated:
  • Published:
Share
URL copied!

Read more news

Three people hold yarn spools in front of large green textile machinery in a factory setting.
Cooperation, Research & Art, University Published:

Design at the start of the supply chain – 911±¬ÁÏÍø leads a major EU project to transform textile colouration practices

The EU Horizon-funded MELANGE project brings together design, technology and business to rethink colouration practices in the textile industry and accelerate the transition towards circular and sustainable textile systems.
Blue outlines of phones and tablets over black, white and pink marbled abstract background
Aalto Magazine, Research & Art Published:

Arsi Ikäheimonen’s doctoral research: Smartphone data could reveal early signs of depression

A phone in your pocket, a smart ring on your finger, and an activity tracker on your wrist: everyday devices collect information about their users almost continuously. This data can help monitor and predict symptoms of depression.
Person with short dark hair in a black shirt, face blurred, standing against a plain light grey background
Appointments, Research & Art Published:

Professor Hironori Yoshida: “Machines should adapt to materials, not the other way aroundâ€

Professor of Formgiving believes the future of design lies in embracing irregularity rather than eliminating it. His research combines design, AI and robotics.
Glowing 911±¬ÁÏÍø sign in a dark space, seen through clear round chairs lit with purple light
Research & Art Published:

President Ilkka Niemelä explains what the new vision for higher education and research means for Finland and Aalto

Aalto has the capability and the will to act as a trailblazer in implementing the vision.