Nanofiber-deposited porous platinum enables glucose fuel cell anodes with high current density in body fluids

Abstract The poisoning of platinum anodes by body-fluid constituents such as amino acids is currently the main hurdle preventing the application of abiotic glucose fuel cells as battery-independent power supply for medical implants. We present a novel anode material that enables continuous operation of glucose oxidation anodes in horse serum for at least 30 days at a current density of (7.2 ± 1.9) μA cm −2 . The fabrication process is based on the electro-deposition of highly porous platinum onto a 3-dimensional carbon nanofiber support, leading to approximately 2-fold increased electrode roughness factors (up to 16500 ± 2300). The material's superior performance is not only related to its high specific surface area, but also to an improved catalytic activity and/or poisoning resistance. Presumably, this results from the micro- and nanostructure of the platinum deposits. This represents a major step forward in the development of implantable glucose fuel cells based on long-term stable platinum electrodes.

[1]  R. Zengerle,et al.  Porous Platinum Electrodes Fabricated by Cyclic Electrodeposition of PtCu Alloy: Application to Implantable Glucose Fuel Cells , 2012 .

[2]  M. A. Raso,et al.  Review of implantable and external abiotically catalysed glucose fuel cells and the differences between their membranes and catalysts , 2016 .

[3]  Liu Jie,et al.  Evolution of structure and properties of PAN precursors during their conversion to carbon fibers , 2003 .

[4]  R. Zengerle,et al.  Performance Loss of a Pt‐Based Implantable Glucose Fuel Cell in Simulated Tissue and Cerebrospinal Fluids , 2014 .

[5]  R. Drake,et al.  A tissue implantable fuel cell power supply. , 1970, Transactions - American Society for Artificial Internal Organs.

[6]  Animal experiments with biogalvanic and biofuel cells. , 1976, Biomaterials, medical devices, and artificial organs.

[7]  Michael Holzinger,et al.  Towards glucose biofuel cells implanted in human body for powering artificial organs: Review , 2014 .

[8]  R. Zengerle,et al.  Poisoning of Highly Porous Platinum Electrodes by Amino Acids and Tissue Fluid Constituents , 2015 .

[9]  Roland Zengerle,et al.  An abiotically catalyzed glucose fuel cell for powering medical implants : Reconstructed manufacturing protocol and analysis of performance , 2008 .

[10]  Roland Zengerle,et al.  Raney-platinum film electrodes for potentially implantable glucose fuel cells. Part 2: Glucose-tolerant oxygen reduction cathodes , 2010 .

[11]  R. Zengerle,et al.  Fabrication of highly porous platinum electrodes for micro-scale applications by pulsed electrodeposition and dealloying , 2013 .

[12]  O. Petrii,et al.  Real surface area measurements in electrochemistry , 1991 .

[13]  Roland Zengerle,et al.  A complete testing environment for the automated parallel performance characterization of biofuel cells: design, validation, and application , 2009 .

[14]  L.S.Y. Wong,et al.  A very low-power CMOS mixed-signal IC for implantable pacemaker applications , 2004, IEEE Journal of Solid-State Circuits.

[15]  G. Horányi.  On the adsorption of organic compounds on platinized platinum electrodes , 1974 .

[16]  S. Kerzenmacher.  Abiotic (Nonenzymatic) Implantable Biofuel Cells , 2014 .

[17]  C. Colton,et al.  Electrochemical Glucose Oxidation on a Platinized Platinum Electrode in Krebs‐Ringer Solution IV . Effect of Amino Acids , 1981 .

[18]  D. Brynn Hibbert,et al.  Voltammetry of Platinum in Artificial Perilymph Solution , 2001 .

[19]  S. Rigby,et al.  Determination of the electrochemically active surface area of Pt/C PEM fuel cell electrodes using different adsorbates , 2008 .

[20]  G. Slaughter,et al.  A membraneless single compartment abiotic glucose fuel cell , 2014 .

[21]  Roland Zengerle,et al.  Energy harvesting by implantable abiotically catalyzed glucose fuel cells , 2008 .

[22]  D. Gough,et al.  Effect of coreactants on electrochemical glucose oxidation , 1978 .

[23]  G. Luft,et al.  Electrochemical behavior of amino acids and their influence on the anodic oxidation of glucose in neutral media. , 1978, Biomaterials, medical devices, and artificial organs.

[24]  J. Koryta,et al.  Electrode processes of the sulfhydryl-disulfide system: I. Cystine at a platinum electrode , 1968 .