Smoltek Hydro­gen is attend­ing Hydro­gen Tech Expo in Göte­borg, Octo­ber 16. The tech­ni­cal exhi­bi­tion will offer indus­try and research insti­tu­tions the oppor­tu­ni­ty to show­case inno­v­a­tive sys­tems and new mate­ri­als for bat­tery and elec­trol­y­sis technology.

By show­ing that we can run a PEMWE with only 0.1 mg/​cm2 of irid­i­um, 2 A/​cm2 pro­ton cur­rent den­si­ty for 250 hours of con­tin­u­ous oper­a­tion – we are unlock­ing green hydro­gen at the man­u­fac­tur­ing scale of tens of gigawatts each year! This is the key to decar­bonize steel and base chem­i­cals for a pros­per­ing planet.

Fabi­an Wenger, Head of R&D

Smoltek Hydro­gen has suc­cess­ful­ly reduced the load­ing of Ir-based cat­a­lyst to 0.1 mg iridium/​cm2, with­out com­pro­mis­ing the over­all per­for­mance of the PEM elec­tolyz­er. The reduc­tion of irid­i­um is crit­i­cal in order to enable glob­al mass man­u­fac­tur­ing tar­gets for green hydro­gen pro­duc­tion using PEM electrolysis.

Key fea­tures of Smoltek Hydro­gen’s Porous Trans­port Elec­trode (PTE):

• Max­i­miz­ing the avail­able sur­face area
• Max­i­miz­ing Ir cat­a­lyst uti­liza­tion, achiev­ing load­ing lev­els as low as 0.1 mg/​cm2
• Reduc­ing con­tact resis­tance between the cat­a­lyst lay­er and the PTL substrate

Con­nect with:
Fabi­an Wenger on site.

- See you in Göte­borg, Octo­ber 16, 2025.

Smoltek Hydro­gen PTE tech­ni­cal scope: The low elec­tri­cal resis­tiv­i­ty and high mechan­i­cal strength indi­cate why cor­ro­sion coat­ed nanofibers are an attrac­tive cat­a­lyst sup­port mate­r­i­al. The solu­tion offered by Smoltek Hydro­gen takes full advan­tage of the excep­tion­al nanofiber prop­er­ties on a PTL. This method ensures full con­tact between the nanofibers and the PTL while pro­vid­ing a high sur­face area sub­strate and cat­a­lysts can then be deposit­ed on top of this sub­strate. The ver­ti­cal ori­en­ta­tion of the nanofibers facil­i­tates coat­ing of the sur­face with addi­tion­al lay­ers of mate­r­i­al, such as cor­ro­sion pro­tec­tion lay­ers or cat­a­lyst particles.