Available to U.S customers.

Proton exchange membrane (PEM) electrolyzer devices such as single cells, short stacks, and full stacks need high surface area and high performance oxygen evolution reaction (OER) electrocatalysts in order to operate efficiently and reliably. 3M™ Nanostructured Iridium Catalyst Powder E570 is composed of organic whiskers coated with iridium metal. It has high mass activity for oxygen evolution reaction (OER) in polymer electrolyte membrane water electrolysis (PEMWE). Engineered to be compatible with high levels of both alcohols and water (during the catalyst ink or slurry preparation), 3M™ Nanostructured Iridium Catalyst Powder E570 supports varying substrate options to best fit customers’ preferred coating processes [Note #1]. Anodes made with 3M™ Nanostructured Iridium Catalyst Powder E570 achieve high thickness at low loadings (mg Ir/cm2) [Note #1]. This product is durable under both cyclic and steady state conditions.

3M™ Nanostructured Iridium Catalyst Powder E570 can be easily dispersed into a catalyst ink or slurry and then coated on a proton exchange membrane (such as Nafion, Aquivion, and other perfluorosulfonic acid membranes, hydrocarbon-based proton exchange membranes such as sulfonated PEEK, etc.), an inert release film such as fluoroelastomer liner, Loparex 4400-L, ETFE, and other suitable substrates by using the industrually available coating methods such as slot-die coating, ultrasonic spraying, meyer rod coating, doctor blade/knife coating, microgravure and gravure coating. One of the most commonly used method is to form a decal on a release liner and then transfer this on a suitable substrate such as a membrane. Customers purchasing this product may have to optimize various parameters in their processes to obtain the desired electrochemical performance.

Product Features

• High mass activity for high efficiency
• High catalyst utilization in electrodes
• High catalyst stability
• Long demonstrated lifetime

Physical Properties

Electrochemical Performance

The following polarization curve demonstrates the electrochemical performance of 3M™ Nanostructured Iridium Catalyst Powder E570 in a PEMWE single cell at 80 deg C [Note #2].

Durability Performance

This test consisted of constant current density holds at 5 A/cm2 for 200 hours followed by a diagnostic polarization curve from 1.4 - 2.3 V in steps of 0.05 V. This cycle was repeated for the 3M™ Nanostructured Iridium Catalyst Powder E570 for 6000+ hours [Note #3]. The observed degradation rate (also known as decay voltage per hr) at 5 A/cm2 current density was 2.3 µV/hr.

Shelf Life and Storage

This product is supplied in solid form and is packaged in (glass) containers. Catalyst is available in quantities up to 30 grams per container. It is recommended to store the product at room temperature away from sources of heat.

Environmental, Health, and Safety Information

Before using this product, thoroughly review the product label and current product safety data sheet (SDS). For additional health and safety information, please visit www.3m.com/SDS or call 1-800-364-3577 or (651) 737-6501. Fuel Cell Store customers that purchased this product will be provided with the SDS upon request.

Contact Information

The information provided on this page is intended as a guide for 3M™ Nanostructured Iridium Catalyst Powder E570 product. For more information or help in selecting this 3M™ product for an application, please contact us sales@fuelcellstore.com, and those inquiries will be forwarded to the appropriate 3M application engineering representative or 3M expert.

Fuel Cell Store is an authorized distributor of 3M™ for making "3M™ Nanostructured Iridium Catalyst Powder E570 product" accessible to the US customers.

Note #1: According to 3M™ proprietary test procedures.

Note #2: According to the proprietary 3M™ test procedures, single cell test hardware, and operational parameters that included beginning of test diagnostics (such as short test, CV test, and EIS test) and cell conditioning (stepped polarization, scanned polarization, hold tests), end of test stepped and scanned polarization and EOT diagnostics.

Note #3: This data was generated from an anode formulated with 3M™ ionomer and a high concentration of alcohol in the solvent. A 3M™ ionomer-based proton exchange membrane was used in the CCM production. According to the proprietary 3M™ test procedures, single cell test hardware, and operational parameters that included beginning of test diagnostics (such as short test, CV test, and EIS test) and cell conditioning (stepped polarization, scanned polarization, hold tests), end of test stepped and scanned polarization and EOT diagnostics.

Fuel Cell Store customers that purchased "3M™ Nanostructured Iridium Catalyst Powder E570" product will receive additional documentation (in the form of a PDF file) that includes examplary catalyst ink formulation for high alcohol content solvent and 1-propanol solvent systems, guidelines for how to prepare the catalyst ink, how to coat/deposit the inks on various substrates (such as Loparex 440-L or ETFE 2 mil thick premium grade) using Mayer rod technique, transferring the decal to a proton exchange membrane, establishing the memrbane electrode assembly with the anode and cathode GDLs, single cell assembly and test conditions, various test parameters to implement for cycling, hold, and AST, and other useful tips.

3M™ Nanostructured Iridium Catalyst Powder E570 Technical Specification Sheet

Technical Information and Disclaimer:

The technical information, guidance, and other statements contained on this page or otherwise provided by 3M are based upon records, tests, or experience that 3M believes to be reliable, but the accuracy, completeness, and representative nature of such information is not guaranteed. Such information is intended for people with knowledge and technical skills sufficient to assess and apply their own informed judgment to the information. No license under any 3M or third party intellectual property rights is granted or implied with this information. Product Selection and Use: Many factors beyond 3M’s control and uniquely within user’s knowledge and control can affect the use and performance of a 3M product in a particular application. As a result, customer is solely responsible for evaluating the product and determining whether it is appropriate and suitable for customer’s application, including conducting a workplace hazard assessment and reviewing all applicable regulations and standards (e.g., OSHA, ANSI, etc.). Failure to properly evaluate, select, and use a 3M product and appropriate safety products, or to meet all applicable safety regulations, may result in injury, sickness, death, and/or harm to property. Warranty, Limited Remedy, and Disclaimer: Unless a different warranty is specifically stated on the applicable 3M product packaging or product literature (in which case such warranty governs), 3M warrants that each 3M product meets the applicable 3M product specification at the time 3M ships the product. 3M MAKES NO OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OR CONDITION OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR ARISING OUT OF A COURSE OF DEALING, CUSTOM, OR USAGE OF TRADE. If a 3M product does not conform to this warranty, then the sole and exclusive remedy is, at 3M’s option, replacement of the 3M product or refund of the purchase price. Limitation of Liability: Except for the limited remedy stated above, and except to the extent prohibited by law, 3M will not be liable for any loss or damage arising from or related to the 3M product, whether direct, indirect, special, incidental, or consequential (including, but not limited to, lost profits or business opportunity), regardless of the legal or equitable theory asserted, including, but not limited to, warranty, contract, negligence, or strict liability.

For industrial and/or R&D use only.