Publications de Ariana Serban | EPFL Graph Search

Polycondensation as a Universal Method for Preparing High-density Single-atom Catalyst Libraries

Paul Joseph Dyson, Mounir Driss Mensi, Pascal Miéville, Laura Piveteau, Xunhui Wang, Xinbang Wu, Daniel Ortiz Trujillo, Miyeon Chang, Ariana Serban, Timo Markus Oskar Felder

Single-atom catalysts (SACs) present a promising subclass of classic heterogeneous catalysts by maximizing metal dispersion and enhancing efficiency. Although high-density SACs (HD-SACs) are reported, their synthesis is typically constrained to specific me ...

WILEY-V C H VERLAG GMBH2025

Anion Exchange Membrane Water Electrolysis at 10 A ⋅ cm−2 Over 800 Hours

Xile Hu, Ariana Serban, Yiwei Zheng

Anion exchange membrane water electrolyzer (AEMWE) is a potentially cost-effective technology for green hydrogen production. Although the normal current densities of AEMWEs are below 3 A ⋅ cm−2, operating them at higher current densities represents an effi ...

Wiley-VCH Verlag GmbH2025

An oxide-promoted, self-supported Ni4Mo catalyst for high current density anion exchange membrane water electrolysis

Xile Hu, Ariana Serban, Nanjun Chen

Anionic exchange membrane (AEM) water electrolyzers are emerging as a cost-effective technology for green hydrogen production. However, state-of-the-art AEM electrolyzers rely on platinum group metal (PGM) catalysts for the hydrogen evolution reaction (HER ...

ROYAL SOC CHEMISTRY2024

Nickel molybdenum catalysts and their methods of preparation

Xile Hu, Ariana Serban

The present invention relates to method for the synthesis of a transition metal catalyst consisting of electrodeposition on a substrate electrode from an electrolyte solution comprising at least one transition metal precursor, wherein the electrodeposition ...

2024

Anion Exchange Ionomers Enable Sustained Pure-Water Electrolysis Using Platinum-Group-Metal-Free Electrocatalysts

Xile Hu, Ariana Serban, Fang Song, Nanjun Chen, Yiwei Zheng

Anion exchange membrane water electrolyzer (AEMWE) is a rising technology that offers potential advantages in cost and scalability over proton exchange membrane water electrolyzer (PEMWE) technology. However, AEMWEs that stably operate in pure water still ...

2023