RA Pacalaj

Antiperovskite Nitrides as Efficient and Durable Electrocatalysts for Industrially Relevant Hydrogen Evolution Phase-pure antiperovskite nitrides (A3XN; A = Co, Ni; X = Zn, In, Sn) synthesized via a melamine method were evaluated as cost-effective, high-performance hydrogen evolution reaction (HER) electrocatalysts. Initial tests in 1 M NaOH electrolyte revealed limited activity, significantly enhanced by reductive electrochemical cycling, attributed to the in situ formation of catalytically active zero-valent Co0 and Ni0 surface species. Comparative studies of isostructural Fe-based nitrides confirmed that these metallic A-site species constitute the active sites. Accelerated stability tests (95 °C, 10 M NaOH) identified Co3ZnN and Ni3ZnN as particularly robust, maintaining intact antiperovskite structures and high catalytic activity (>70 mA cm–2 after 210 h). Partial substitution (Zn for In) further improved stability, notably for Ni3Zn0.25In0.75N. This study highlights the crucial role of compositional tuning and surface activation in optimizing HER performance, emphasizing that systematic stability assessments under industrially relevant conditions (high temperature, concentrated electrolyte) are essential. Antiperovskite nitrides thus offer promising avenues for scalable, green hydrogen production technologies.

No better way to start on Bluesky! Delighted&proud to see this in ACS Catalysis! My former PhD student ran the show while I mentored from the sidelines. 10M NaOH at 95°C is a "trial by fire" for most HER catalysts, but these antiperovskites didn't flinch. pubs.acs.org/doi/abs/10.1...

Hahahaha, did I?

oi @imperialcollegeldn.bsky.social, are you following @imperialsci.bsky.social and @imperialchemistry.bsky.social yet?

‘A place of joy’: why scientists are joining the rush to Bluesky Researchers say the social-media platform — an alternative to X — offers more control over the content they see and the people they engage with.: https://www.nature.com/articles/d41586-024-03784-6

There are already many articles for which there is more attention on Bluesky than on other comparable micro-blogging sites, meaning the academic community and the general public have clearly adopted Bluesky as one of its core places to disseminate and discuss new research.

A Place of Joy.

100% PhD position on organic solar cells research: Consider joining our team in Chemnitz

bundestagswahlen im winter sind pures gift für den weihnachtlichen haussegen. einfach jetzt schon mal quellen verschicken, die erklären warum wärmepumpen besser sind als "H2 ready" gasboiler

Ok, I've found the pero gang! Now where's OPV at?

hello bluesky, just came here for the #chemsky #sciencesky #academicsky #solarenergy #climatechange #politics

looking forward to connecting with other academics, scientists and activists (and recreating the fun place twitter used to be)