Andrew Weller

@wellerchemyork.bsky.social

Prof. Andrew Weller, Dept. Chem., University of York (UK) | Organometallic Synthesis for Catalysis | Assoc. Editor RSC Catalysis Sci. Tech. | 🚴‍♀️🏔 | Views his own

Congratulations to Christophe who has just been appointed as a member of the Académie des Sciences for his work on surfaces and interfaces of functional materials and heterogeneous catalysts. He joins an outstanding group of scientists across disciplines, recognised through their appointments.

Bild

We are hiring two PhDs on our EU SMOM project for a late Sept 2026 start. The projects will involve being trained, & becoming expert in, air sensitive, platinum group metal organometallics, single-crystal SMOM synthesis, reactivity, and deployment in sustainable catalysis. See: lnkd.in/emu2Bjzr

Bild

With @nicolegrobert.bsky.social we report straightforward approach to hex-BN fibres that uses catalytic methods for the controlled synthesis of BN-polymers, that are then used to fabricate hex-BN fibres. Such fibres could outperform carbon fibres in extreme environments. tinyurl.com/h4jwdv6s

A straightforward route to hexagonal-boron nitride fibers - Advanced Composites and Hybrid Materials

Advanced fibers enable the fabrication of structures and composites for applications reliant on lightweight, oxidation resistant, mechanically strong, and electrically insulating materials, e.g. in all forms of land, air, and space transportation and in applications within extreme environments. Hexagonal boron nitride (h-BN) fibers harness these advantages, and in addition, offer ultra-high-strength-to-weight ratio and low density. Yet, existing precursors for polymer-derived BN fibers are limited to insoluble and air/moisture sensitive polyborazylenes, hindering fiber production at scale. In this contribution, we report a reliable, controllable, and scalable synthesis methodology for producing pure micro- and nano-h-BN fibers, offering a competitive alternative to NASA’s energy-intensive h-BN nanotubes production. The single-source precursor, N-methyl polyaminoborane (PMeAB), plays a pivotal role in this process. The catalytic, and scalable, synthesis of PMeAB with controlled molecular weights (Mw = 110,500–290,500 g·mol−1) enables the production of h-BN fibers by electrospinning method and thermolysis under ammonia. PMeAB molecular weight and concentration were identified as key factors dictating the viscosity and surface tension, and thus influencing the overall spinnability of the PMeAB solution. We reveal that the subsequent formation of a cross-linked intermediate during PMeAB thermolysis is essential to retain the fibrous morphology during the conversion to h-BN fibers. Comprehensive characterization demonstrated the purity and homogeneity of the h-BN fibers, with ~ 97 at.% of B and N contents combined throughout the fiber body. This newly disclosed route to h-BN fibers offers a route to potentially valuable multifunctional filler material for advanced lightweight composites suitable for applications in extreme environments.

link.springer.com

Dalby Forest looking towards the hills behind Scarborough. Earlyish morning with my gravel bike. Not a soul around apart from me. At least 10 different birds are serenading me, damsel files and bumblebees keeping me company, and in the distance the bucolic lowing of cattle.

Bild

Some of our poster-prize winners & talk-givers from #Dalton2025 : Frei, Lynam, Slattery, Douthwaite, Fairlamb, Parker, Willans (& Weller) Labs. Natalia Baranska Alex Watson Jake Walder Sara Bonfante Rebecca Willans Kris Altus Katie Keating Chloe van Beek Stefan Flesch Anson Chau Cagri Ozsan

Bild

More and more stories like this coming out all the time. I cannot and will not go to the US, nor send any of my group to the US, for any reason. It's simply not safe for any foreign visitor. No conferences, seminars, collaboration visits, vacations, nothing. www.theguardian.com/us-news/2025...

Australian with working visa detained and deported on returning to US from sister’s memorial

Man who says he had previously left and re-entered the country multiple times alleges border officials called him ‘retarded’ and boasted ‘Trump is back in town’

theguardian.com

UVic Chemistry is hiring. We're looking for an Assistant Professor in experimental chemistry, particularly in one of the areas of physical and/or inorganic chemistry. More details in the ad below. Great department & part of the world to live! #facultychemjobs www.uvic.ca/faculty-staf...

CHEM 270-151 - Faculty & staff - University of Victoria

Inspired by and honouring place, we are a community-minded, globally engaged university where we transform ideas into meaningful impact.

uvic.ca