HMR Wilkening

Professor of Chemistry, Director of ICTM; @TUGraz we study ion dynamics in materials for energy storage by solid-state NMR, broadband conductivity spectroscopy

[HMR Wilkening @WilkeningLab]

Fast ionic motion in a Na thiophosphate can drive structural change: using high-temperature Na-23 and P-31 #NMR up to 650 °C (@PANACEA_NMR), we show that Na-ion diffusion in Na4P2S6 precedes and initiates the transition to its rotor phase. JACS: https://t.co/osioiwTSKE

[HMR Wilkening @WilkeningLab]

C’est Paris aujourd’hui.

[HMR Wilkening @WilkeningLab]

The bulk Na+ #ionic #conductivity of W-doped Na3SbS4 can reach an impressive 96 mS/cm at room temperature as extrapolated from low-T impedance spectroscopy down to – 160 °C; excellent agreement with diffusion coefficients from AIMD and QENS. JACS: https://t.co/YV4rXzCnxw

[HMR Wilkening @WilkeningLab]

... lithiation of LATP solid #electrolytes studied by Li-(7) #NMR - see our latest study in Communications Chemistry. https://t.co/bik9rtcxQ4

[HMR Wilkening @WilkeningLab]

Professor of Theoretical and Physical Chemistry | EURAXESS https://t.co/gZ5swUbzYj

[HMR Wilkening @WilkeningLab]

@springer1842 ; - )

[HMR Wilkening @WilkeningLab]

Exciting news! 🎉 Jelena, Philippe, and I have launched a special collection on "Solid Ionic Conductors for Advanced Applications". Submissions are now open! 👉 https://t.co/7aFwWgDNsY #SolidIonicConductors #MaterialsScience #Research #OpenSubmissions

[HMR Wilkening @WilkeningLab]

It was a pleasure to accept the invitation to join the podcast series by Radio IGEL. Interviewed by the students, we talked about chemistry, batteries, materials, and life. ;-) https://t.co/LkBQr9S2FX

[HMR Wilkening @WilkeningLab]

We are excited to invite you to contribute to the upcoming International Conference on Electroceramics (ICE) by submitting an abstract. This conference will provide a dynamic platform to exchange ideas and showcase advances in the field of electroceramics. https://t.co/5l56FEs4y6

[HMR Wilkening @WilkeningLab]

@GreyGroupCam @ChemCambridge : - )

[HMR Wilkening @WilkeningLab]

Looking forward to submissions: The Journal of Materials Science: Materials in Energy is a new multidisciplinary journal focusing on the latest applications of materials to energy devices for #conversion and #storage of different types of #energy.

https://t.co/gKmF1EGQ2F

[HMR Wilkening @WilkeningLab]

Post-synthesis ball milling impacts the structure (see #NMR) and performance of LPS: shorter milling times optimize particle size and ion transport, while longer processing reduces conductivity. @ZeierLab shows how optimization works for #batteries: https://t.co/PLUnYUBAX8

[HMR Wilkening @WilkeningLab]

Binary Li compounds as solid electrolytes: 1D and 2D Li(6,7) exchange #NMR revealed slow Li+ exchange between the Li2S and LiI environments in Li2S-LiI nanocomposites, see https://t.co/ZRbrwaTg0H Though detectable, it is by far not dictating overall conductivity here.

[HMR Wilkening @WilkeningLab]

Increased Li+ hopping and ionic transport in Li2S-LiI (nano-)composites as revealed by conductivity spectroscopy in Anna's recent paper, see Small Science: https://t.co/ZRbrwaTg0H

[HMR Wilkening @WilkeningLab]

@Michael_A_Hope Congratulations!

[HMR Wilkening @WilkeningLab]

#NMR measurements at temperatures as low as 9 K (cryogenic range) are needed to reveal details on Li ion hopping and spin-relaxation in argyrodite-type solid electrolytes: @ChemMater Great collaboration with W. Zeier's group @ZeierLab. https://t.co/8L700sf45O

[HMR Wilkening @WilkeningLab]

We are looking for a new co-worker (#PhD_position) with experience in time-domain solid-state #NMR and/or conductivity spectroscopy. In our group (https://t.co/tDaFPW8gQW) NMR is used to understand #ion #dynamics in solid #electrolytes ... apply here: https://t.co/j03fp9x5zD

[HMR Wilkening @WilkeningLab]

#Battery #Materials: Making visible Li+ displacements in LiFePO4 and unveiling the distinct phases within individual crystallites at unprecedented atomic-level resolution. Great collaboration between Ilie Hanzu and the team at Felmi, Adv. Energy Mater.: https://t.co/ulJROGBVZE

[HMR Wilkening @WilkeningLab]

Mixed Conducting Interphases (MCI, a term coined by J. Janek) in solid electrolytes: read Thomas Scheiber's latest work (Li, Al, P, #NMR, ...) on lithiated LATP. Thanks to M. Finsgar for his great help with XPS. Adv. Funct. Mater.: https://t.co/jmQrInoRVX

[HMR Wilkening @WilkeningLab]

decommisioning = decommissioning

[HMR Wilkening @WilkeningLab]

Decommisioning of an old cryo-magnet in our NMR hall in Graz. Helium turned out to be expensive and the stray field was a bit too high …