Precious Metal Free Regenerative Hydrogen Electrode Fuel Cell - - PowerPoint PPT Presentation

Precious Metal Free Regenerative Hydrogen Electrode

Barr Zulevi, Pajarito Powder

Kathy Ayers, Proton Onsite Sanjeev Mukerjee, Northeastern University Madeleine Odgaard, EWII (Formerly IRD) Plamen Atanassov, University of New Mexico

We are developing precious metal free fuel cell and electrolyzer catalysts for low cost energy storage

Project Vision

• Fed. funding:

$2.8M Length 36 mo.

Allow for precious metal free fuel cells and electrolyzers for transportation, backup-power, and renewables grid-level energy storage

Project Impact

OH- H2O storage H2 storage Electrolyzer mode Fuel Cell mode OH- H2O + O2 H2O + O2 O2 storage

Ni-Cu/Mo HOR Ni-X HER Ni H2O+e- H2+OH- 2H2O +2e- H2+2OH- Electrode Scale-up & Manufacturing System testing Economics Management Data Descriptors Workflow Knowledge

Innovation and Objectives

Innovation

• Elimination of platinum group metals

through use of anion exchange membrane technology for fuel cells and electrolyzers

• Focus on the bifunctional hydrogen

electrode as the critical remaining enabler to low cost materials

Task outline, technical objectives Tech-to-Market strategy

Short-term: high-value, fault tolerant electrolyzers, electrodes and catalysts for specialty markets. Long-term: reversible fuel cell and components for renewable storage. Task and lead

Yr 1 Yr 2 Yr 3 FC catalyst: PP, UNM EC catalyst: NU, Proton, PP Electrode: Proton, EWII, PP T2M: PP, Proton, EWII

Innovation and Objectives

Project history

The partners have been working on different interrelated projects together and have combined to solve the last piece of the project. Progress has been steady, with electrolyzer progress ahead of schedule and fuel cell progress accelerating.

Proposed targets Desirable partnerships

• 1. Improved AEM materials and

electrode structure diagnostics.

• 2. Alternate uses and applications of

the catalytic materials, electrodes, and systems developed

Anticipated challenges

Electrode structure optimization and stability of AEM materials have been

• challenging. We are therefore

addressing catalyst/electrode and electrode/AEM materials separately. Metric S.o.t.A Proposed Voltage,0.35A/cm2 (fuel cell) 0.4 V 0.65 V Voltage, 0.5A/cm2 (electrolyzer) 2.4 V 2.1 V $/kW at stack level (AEM vs PEM) $400 (PEM) $50 (AEM)

Catalyst Development Scheme

3

PGM-free Hydrogen Evolution Reaction Hydrogen Oxidation Reaction Hydrogen Evolution/Oxidation Reactions PGM Pt-Ru Pt/Ir- Ni/Ru NiCr Ni-N/C M-H Ni-Ox Ni-P Ni- W/Mo Q4 Down select HOR HE/OR Q8 Down select Ni-Cu/Mo M-H Ni-N/C Pt-Ru Pt/IrNi/Ru Q11 Down select HER HOR HE/OR & PGM-free or PGM catalyst set