MariaHeilmann

Chemist at @BAMresearch

[MariaHeilmann @maria_heilmann]

@FranEmmerling @SKarafiludis @BAMResearch @HumboldtChem Congratulations!🎉

[Franziska Emmerling @FranEmmerling]

Very proud of this new doctor! Congratulations, Stephanos @SKarafiludis @BAMResearch @HumboldtChem Amazing defence, and amazing publications!

And finally, a decent hat! 😄

https://t.co/vggX92BgNP
https://t.co/vXpv3BMZrW

[Franziska Emmerling @FranEmmerling]

Congratulations, Torvid @FTorvid! We have a new doctor. Brilliant defense and a great time at @BAMResearch are behind you. All the best for the future! Read more here ➡️https://t.co/g9vJLlZykz congratulation also to Biswajit @BisuChem!!

[MariaHeilmann @maria_heilmann]

@FranEmmerling @FTorvid @HumboldtChem @BAMResearch Congrats! So happy to see it finished!

[Katharina Edkins @K_Edkins]

Please retweet: 4-year fully funded PhD position available in my group exploring micro heterogeneity and it's influence on crystallisation. This project is co-supervised by AstraZeneca and combines fundamental and applied crystallisation research. https://t.co/wrmF1BouRa

[SurfChem@BAM @ChemSurf]

I 've just heard some new noise in my office... the sun is back.

[Adam Michalchuk @amichalchuk]

Very excited to be guest editing this special issue in @PCCP from @UoBChemistry with Francesco Delogu @univca, on Fundamental @Mechanochem ! We very much look forward to receiving your papers on this exciting and interdisciplinary field!

[MariaHeilmann @maria_heilmann]

@Rewadii @BAMResearch thanks!
Yes, we did comparisons and the catalytic activity (not TOF itself) is lower at lower temperatures, while the selectivity is higher. Although the differing reaction conditions like loading, gas flow and stream composition are problematic for comparison.

[MariaHeilmann @maria_heilmann]

I am happy to present my #RSCPoster about synthesis and characterization of bimetallic nanoparticles for catalysis #RSCAnalytical #RSCCat #RSCMat #RSCNano
@BAMResearch

[MariaHeilmann @maria_heilmann]

@atikur_chem @BAMResearch Thanks!
We have yet no insights into the recyclability of the catalysts. But this and the long term stability will be investigated.

[MariaHeilmann @maria_heilmann]

I am happy to present my #RSCPoster about synthesis and characterization of bimetallic nanoparticles for catalysis #RSCAnalytical #RSCCat #RSCMat #RSCNano
@BAMResearch
(now officially within the 24 h of #RSCPoster 2023)

[MariaHeilmann @maria_heilmann]

@deuxbeck @BAMResearch Thanks!
The shell thicknesses vary within the different particles. And XPS can see Cu in decreasing amounts from the smaller to the larger NPs.

[Heydar @markani_heydar]

Thrilled to unveil my newest PhD results at #BAMResearch & #ChemSurf on ToF-SIMS as a novel in situ analytical tool for advanced energy materials: #RSCPoster #RSCAnalytical #RSCEnergy #RSCInorg #RSCEnv #RSCMat #RSCNano #RSCPhys

[MariaHeilmann @maria_heilmann]

@VPolshettiwar @BAMResearch thanks!
TEM measurements after catalysis showed unsintered and still well separated NPs on the silica. First tests showed a good catalyst stability over a period of 7 h.

[MariaHeilmann @maria_heilmann]

@Dr_Oli_Jones @BAMResearch thanks!
The RWGS reaction can be an important step in the power to syngas precess. Energy from renewable sources is converted via water electrolysis and RWGS reaction to syngas, which can be further utilized (e.g. Fischer-Tropsch or Haber-Bosch)

[MariaHeilmann @maria_heilmann]

@Street_Research @BAMResearch thanks!
Yes, I added the NPs to the silica via dry impregnation after NP synthesis. And no, I haven´t tried yet using just the NPs for catalysis.

[MariaHeilmann @maria_heilmann]

@MooresResearch @BAMResearch Hi Audrey,
thanks!
Surprisingly for the investigated set of NPs there was no impact of reaction conditions on selectivity, but activity. So the next step would be to lay the focus on optimizing the activity.

[MariaHeilmann @maria_heilmann]

@singh____aditya @BAMResearch thanks!
I control the nanoparticle size with the amount of stabilizing and reducing agent during synthesis.

[MariaHeilmann @maria_heilmann]

@FelipeMBolner @BAMResearch Hi Felipe,
thanks!
I used silica with a pore volume of 1 mL/g and a pore size of 160 nm. The pore volume distribution could have an impact when it comes to the surface, which the gas flow interacts with. We chose a silica with pores much bigger than the used NPs.

[Manuel Kupper @ManuelKupper]

Have a look at the automation of thin film deposition of the energy storage material Prussian blue analogues! #RSCPoster #RSCMat #RSCInorg #RSCDigital #RSCEnergy #RSCNano

[Nikita @NikitaGugin]

Have you ever heard of MOF synthesis by simply mixing solid reagents? We did it with ZIF-8 and adapted to the large-scale green production by reactive extrusion🌍#RSCMat #RSCEnv Check out my work for more info! Zoomable poster in reply👇Happy to answer any questions! #RSCPoster