Ryu, Jongeun Kim, Hak-Sung Hahn, H. Thomas Lashmore, David 2024-01-20T19:33:59Z 2024-01-20T19:33:59Z 2021-09-02 2010-03-15 0956-5663 https://pubs.kist.re.kr/handle/201004/131631 A novel method using intense pulsed light (IPL) for the metal nano-island formation on carbon nanotube (CNT) was introduced. The IPL-induced photothermal dewetting process improved platinum (Pt) catalyst utilization by transforming nano-islands from Pt film on CNT and increasing the surface area for the subsequent sputtering. The irradiation of high intensity of light on the Pt film causes surface-energy-driven diffusion of Pt atoms and forms the array of nano-islands on CNT. The thickness of Pt film can change the size of nano-islands. Cyclic voltammetry showed a dramatically improved glucose oxidation at the IPL morphology modified Pt-CNT electrode compared to the Pt sputtered CNT electrode without IPL irradiation. The power densities of glucose/air biofuel cell based on the morphology modified Pt-CNT electrode and the as-sputtered Pt-CNT electrode were 0.768 mu W/cm(2) and 0.178 mu M/cm(2), respectively. The biofuel cell based on morphology modified Pt-CNT electrode showed highly stable output in long-term performance. The power density dropped 14.1% in 30 days. Efforts are underway to improve the interface transfer to achieve higher potential and current output. (C) 2009 Elsevier B.V. All rights reserved. English ELSEVIER ADVANCED TECHNOLOGY MEMBRANE FUEL-CELLS EXCHANGE MEMBRANE NANOPARTICLES OXIDATION CATALYST Carbon nanotubes with platinum nano-islands as glucose biofuel cell electrodes Article 10.1016/j.bios.2009.11.019 1 BIOSENSORS & BIOELECTRONICS, v.25, no.7, pp.1603 - 1608 BIOSENSORS & BIOELECTRONICS 25 7 1603 1608 scie scopus 000275978700008 2-s2.0-77952318490 Biophysics Biotechnology & Applied Microbiology Chemistry, Analytical Electrochemistry Nanoscience & Nanotechnology Biophysics Biotechnology & Applied Microbiology Chemistry Electrochemistry Science & Technology - Other Topics Article MEMBRANE FUEL-CELLS EXCHANGE MEMBRANE NANOPARTICLES OXIDATION CATALYST Glucose Biofuel cell Intense pulsed light Carbon nanotubes Photothermal dewetting