[1] Swansea Univ, Energy Safety Res Inst ESRI, Coll Engn, Swansea SA1 8EN, W Glam, Wales
[2] Swansea Univ, Coll Engn, Baglan Bay Innovat & Knowledge Ctr, SPECIFIC, Baglan SA12 7AX, Port Talbot, Wales
[3] Rice Univ, Dept Mat Sci & Nanoengn, Houston, TX 77005 USA