Reaction-specific platinum electrodes for implantable glucose fuel cells: versatile fabrication by cyclic electrodeposition

نویسندگان

  • Arne Kloke
  • Christian Köhler
  • Roland Zengerle
  • Sven Kerzenmacher
  • Felix von Stetten
چکیده

We present a new versatile method for the generation of ultra porous noble metal electrodes based on cyclic Pt-Cu electrodeposition and anodic Cu dissolution. Performing this method, electrodes with tailored roughness factors (RF exceeding up to 2031) and thus reaction-specificity can be fabricated. Applied in implantable glucose fuel cells, the novel process enables a by 14 % increased power density compared to state of the art, at significantly reduced platinum consumption and substantially facilitated fabrication.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Cyclic Electrodeposition of PtCu Alloy: Facile Fabrication of Highly Porous Platinum Electrodes

Cyclic electrodeposition of platinum and copper enables the fabrication of high surface area electrodes (roughness factors of >3000) by multiple alternation of alloy co-deposition and dealloying of copper from the just-fabricated alloy layers. The underlying processes, resulting electrode structures, and their applicability to potentially implantable glucose fuel cells are discussed.

متن کامل

Electrodeposition of platinum nanoparticles on reduced graphene oxide as an efficient catalyst for oxygen reduction reaction

Reduced graphene oxide film was synthesized on a glassy carbon electrode by electro reduction of graphene oxide powders in aqueous solution. Then platinum nano particles were deposited on reduced graphene oxide film that was deposited on the glassy carbon electrode via electro reduction of platinum salt. The Physical morphology of the platinum on reduced graphene oxide film was evaluated by sca...

متن کامل

A Novel Fabrication Route Yielding Self-supporting Porous Platinum Anodes for Implantable Glucose Micro Fuel Cells

We present a novel fabrication route yielding highly active platinum anodes for body implantable glucose micro fuel cells. Such devices harvest electrical energy from glucose and oxygen in body fluids and are currently under development as sustainable power supply for medical implants. The novel anode fabrication process roots on the interdiffusion of an extractable non-noble metal with bulk pl...

متن کامل

Strategies for the fabrication of porous platinum electrodes.

Porous platinum is of high technological importance due to its various applications in fuel cells, sensors, stimulation electrodes, mechanical actuators and catalysis in general. Based on a discussion of the general principles behind the reduction of platinum salts and corresponding deposition processes this article discusses techniques available for platinum electrode fabrication. The numerous...

متن کامل

Introducing Pt/ZnO as a new non carbon substrate electro catalyst for oxygen reduction reaction at low temperature acidic fuel cells

Gas diffusion electrode was used for providing better conditions in fuel cell systems for oxygen reduction reaction (ORR). Because the slow kinetics of the oxygen reduction reaction at the proton exchange membrane fuel cell cathode restricts fuel cell efficiency. To this end, researchers have used platinum-coated carbon. In the present study, due to the reduction of carbon corrosion, Zinc oxide...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2010