Imperial College London

DrEnriqueRuiz Trejo

Faculty of EngineeringDepartment of Earth Science & Engineering

Visiting Researcher



+44 (0)20 7594 9695e.ruiz-trejo




3.50Royal School of MinesSouth Kensington Campus





I hold a PhD in Materials and an MSc in Chemistry. I am an expert in the synthesis of advanced ceramics and material processing for electrochemical devices such as Solid Oxide Fuel Cells, electrolyzers and oxygen separation membranes.

My current responsibilities include the development of novel architectures for fuel cell electrodes and electrolysers. I am also pioneering a combination of electroless and electrodeposition techniques to improve and tailor the anode performance and durability. I have developed a novel oxygen separation membrane with very low metal content and capable of separating high purity oxygen from air.

Selected Publications

Journal Articles

Bertei A, Ruiz Trejo E, Kareh K, et al., 2017, The fractal nature of the three-phase boundary: A heuristic approach to the degradation of nanostructured solid oxide fuel cell anodes, Nano Energy, Vol:38, ISSN:2211-2855, Pages:526-536

Boldrin P, Ruiz Trejo E, Mermelstein J, et al., 2016, Strategies for carbon and sulfur tolerant solid oxide fuel cell materials, incorporating lessons from heterogeneous catalysis, Chemical Reviews, Vol:116, ISSN:1520-6890, Pages:13633-13684

Skinner SJ, Yanez-Gonzalez A, Ruiz-Trejo E, et al., 2016, Development of an optical thermal history coating sensor based on the oxidation of a divalent rare earth ion phosphor, Measurement Science & Technology, Vol:27, ISSN:1361-6501

Ruiz-Trejo E, Atkinson A, Brandon NP, 2015, Metallizing porous scaffolds as an alternative fabrication method for solid oxide fuel cell anodes, Journal of Power Sources, Vol:280, ISSN:1873-2755, Pages:81-89

Kishimoto M, Lomberg M, Ruiz-Trejo E, et al., 2014, Enhanced triple-phase boundary density in infiltrated electrodes for solid oxide fuel cells demonstrated by high-resolution tomography, Journal of Power Sources, Vol:266, ISSN:0378-7753, Pages:291-295

Ruiz-Trejo E, Boldrin P, Lubin A, et al., 2014, Novel Composite Cermet for Low-Metal-Content Oxygen Separation Membranes, Chemistry of Materials

Ruiz-Trejo E, Irvine JTS, 2013, Electrolysis of CO<sub>2</sub> in a proton conducting membrane, Solid State Ionics, Vol:252, ISSN:0167-2738, Pages:157-164


Ruiz-Trejo E, Kilner JA, 2009, Possible proton conduction in Ce<sub>0.9</sub>Gd<sub>0.1</sub>O<sub>2-δ</sub> nanoceramics, European-Science-Foundation-Exploratory Workshop on Proton Conducting Materials for Next-Generation Solid Oxide Fuel Cells, SPRINGER, Pages:523-528, ISSN:0021-891X

More Publications