Alexander Knebel
@knebelalexander.bsky.social
Junior Group Leader, Carl Zeiss Breakthroughs. Scientist enthusiastic for MOFs, glasses, membranes etc.
http://knebelgroup.uni-jena.de
Based at @UniJena, Otto Schott Institut of Materials Research, Germany. Home at http://glas.uni-jena.de.
Views are my ow
http://knebelgroup.uni-jena.de
Based at @UniJena, Otto Schott Institut of Materials Research, Germany. Home at http://glas.uni-jena.de.
Views are my ow
The algorythm and interface of Bluesky makes it incredibly hard to see relevant posts from peers or anything relevant at all.
November 10, 2025 at 8:19 PM
The algorythm and interface of Bluesky makes it incredibly hard to see relevant posts from peers or anything relevant at all.
Great and new collaborative work with Michael and Jiamin at @univie.ac.at on the control of porosity on the Angström-scale in MOF-glasses in vacuum. Check out the pre-print: chemrxiv.org/engage/chemr...
Ångstrom Scale Pore Engineering in ZIF-62 Glasses by in vacuo Heating-Induced Amorphization
Zeolitic Imidazolate Framework (ZIFs) glasses possess both the intrinsic porosity of Metal–Organic Frameworks (MOFs) and the melt-processability of conventional glasses, thereby representing a new cla...
chemrxiv.org
November 10, 2025 at 11:36 AM
Great and new collaborative work with Michael and Jiamin at @univie.ac.at on the control of porosity on the Angström-scale in MOF-glasses in vacuum. Check out the pre-print: chemrxiv.org/engage/chemr...
The IZMM 2026 announcement is finally out! We are welcoming you to join us in Jena in June 2026. Check out the website, register and send us your abstracts. More infos on the speaker line-ups and so on will follow soon. Stay tuned!
www.izmm2026.org
www.izmm2026.org
October 28, 2025 at 10:44 AM
The IZMM 2026 announcement is finally out! We are welcoming you to join us in Jena in June 2026. Check out the website, register and send us your abstracts. More infos on the speaker line-ups and so on will follow soon. Stay tuned!
www.izmm2026.org
www.izmm2026.org
Very happy that we from @uni-jena.de could contributed to this great collaborative paper lead by Fabian and Heidi @uniinnsbruck.bsky.social, as well as @markussuta.bsky.social. We investigated multimodal encapsulation of pyrelenes as guests into MOFs. advanced.onlinelibrary.wiley.com/doi/full/10....
Resolving Dye Embedment in MOF‐5: Multimodal Evidence for Perylene‐Based Guest Encapsulation
Unambiguous discrimination between surface-adsorbed and pore-incorporated photoactive dyes remains a key challenge in hybrid MOF systems. This study presents a comprehensive multi-technique approach ....
advanced.onlinelibrary.wiley.com
October 24, 2025 at 11:33 PM
Very happy that we from @uni-jena.de could contributed to this great collaborative paper lead by Fabian and Heidi @uniinnsbruck.bsky.social, as well as @markussuta.bsky.social. We investigated multimodal encapsulation of pyrelenes as guests into MOFs. advanced.onlinelibrary.wiley.com/doi/full/10....
Our paper on the precise control of pore channels in ZIF-62-glasses made it into the Nobel Prize Collection of @nature.com This makes me enormously proud! Thanks to everyone involved!
www.nature.com/collections/...
www.nature.com/collections/...
Nobel Prize in Chemistry 2025
The 2025 Nobel Prize in Chemistry has been awarded to Susumu Kitagawa, Richard Robson and Omar M. Yaghi “for the development of metal–organic frameworks.”
www.nature.com
October 12, 2025 at 11:22 AM
Our paper on the precise control of pore channels in ZIF-62-glasses made it into the Nobel Prize Collection of @nature.com This makes me enormously proud! Thanks to everyone involved!
www.nature.com/collections/...
www.nature.com/collections/...
Heartfelt congratulations to Omar Yaghi, Susumu Kitagawa and Richard Robeson for the Nobel Prize in Chemistry 2025. Well deserved and long overdue!
October 8, 2025 at 10:05 AM
Heartfelt congratulations to Omar Yaghi, Susumu Kitagawa and Richard Robeson for the Nobel Prize in Chemistry 2025. Well deserved and long overdue!
Just back from a great 2 day symposium between the DFG research training groups PhInt (Uni Jena) and SPECTRE (Uni Rostock). Both RTGs deal with light-matter interactions. We had a nice time, educational trips and strong scientific exchange. Svetlana, PhD student in my group, delivered a talk. 🌅
September 19, 2025 at 7:41 PM
Just back from a great 2 day symposium between the DFG research training groups PhInt (Uni Jena) and SPECTRE (Uni Rostock). Both RTGs deal with light-matter interactions. We had a nice time, educational trips and strong scientific exchange. Svetlana, PhD student in my group, delivered a talk. 🌅
Setup is back online. Took half a year to repair... mainly because of delivery. Not beautiful but it works and it got some upgrades. Also, it now has LEDs that blink in RGB colors 😄
September 15, 2025 at 4:45 PM
Setup is back online. Took half a year to repair... mainly because of delivery. Not beautiful but it works and it got some upgrades. Also, it now has LEDs that blink in RGB colors 😄
Spread the word and save the date! June 22.-26. 2026, the 10th International Zeolite Membrane Meeting, welcomes you in the beautiful city of Jena, Germany. Organized by Hannes Richter, Ingolf Voigt @fraunhofer.bsky.social and myself from @uni-jena.de
web:
www.ikts.fraunhofer.de/en/communica...
web:
www.ikts.fraunhofer.de/en/communica...
September 3, 2025 at 9:18 AM
Spread the word and save the date! June 22.-26. 2026, the 10th International Zeolite Membrane Meeting, welcomes you in the beautiful city of Jena, Germany. Organized by Hannes Richter, Ingolf Voigt @fraunhofer.bsky.social and myself from @uni-jena.de
web:
www.ikts.fraunhofer.de/en/communica...
web:
www.ikts.fraunhofer.de/en/communica...
A great opportunity to give a talk at the #ECerS in Dresden. "Molten MOF Membranes - ZIF-Glasses for Highly Precise Molecular Sieving". Thanks to my group members for fueling the talk with content, and to Prof. I. Voigt from Fraunhofer IKTS for inviting me.
September 1, 2025 at 9:00 PM
A great opportunity to give a talk at the #ECerS in Dresden. "Molten MOF Membranes - ZIF-Glasses for Highly Precise Molecular Sieving". Thanks to my group members for fueling the talk with content, and to Prof. I. Voigt from Fraunhofer IKTS for inviting me.
Call for papers on MOFs, COFs, Zeolites until March 2026: “Advances in Reticular Microporous and Mesoporous Materials: Design, Characterization, Properties, and Applications" (VSI: ARMMM) in Microporous and Mesoporous Materials (IF 4.7). @elsevierconnect.bsky.social
September 1, 2025 at 8:38 AM
Call for papers on MOFs, COFs, Zeolites until March 2026: “Advances in Reticular Microporous and Mesoporous Materials: Design, Characterization, Properties, and Applications" (VSI: ARMMM) in Microporous and Mesoporous Materials (IF 4.7). @elsevierconnect.bsky.social
Our study is out in @angewandtechemie.bsky.social. We demonstrate CO2-capture in a Cu-phosphonate MOF over the course of 2 years. In Jena, we did the in-situ T-dependent XRD and were amazed by the material. A fruitful collaboration led by R. Oestreich and G. Yücesan doi.org/10.1002/anie...
Stable Ultramicroporous Metal–Organic Framework with Hydrophilic and Hydrophobic Domains for Selective Gas Adsorption
The ultramicroporous pores of TUB41 selectively host water and CO2 molecules at distinct hydrophilic and hydrophobic compartments without competition.
doi.org
August 25, 2025 at 7:54 AM
Our study is out in @angewandtechemie.bsky.social. We demonstrate CO2-capture in a Cu-phosphonate MOF over the course of 2 years. In Jena, we did the in-situ T-dependent XRD and were amazed by the material. A fruitful collaboration led by R. Oestreich and G. Yücesan doi.org/10.1002/anie...
All 4 of our manuscripts are currently in review, some for longer but with a very delayed response. I hope they don't all come back at the same time. Quadrupple revision will kill me.
August 20, 2025 at 4:10 PM
All 4 of our manuscripts are currently in review, some for longer but with a very delayed response. I hope they don't all come back at the same time. Quadrupple revision will kill me.
Being internationally visible can backfire when publishing with @natureportfolio.nature.com nowadays — editors started inviting 7–10 referees at once. You may face 5–6 reviews. Too many cooks spoil the broth; 3 referees is good, more referees lower the quality of peer review in my opinion.
August 12, 2025 at 2:02 PM
Being internationally visible can backfire when publishing with @natureportfolio.nature.com nowadays — editors started inviting 7–10 referees at once. You may face 5–6 reviews. Too many cooks spoil the broth; 3 referees is good, more referees lower the quality of peer review in my opinion.
Polycrystalline membranes from the "dense" MOF MIL-116(Ga) demonstrate exceptional performance in helium upgrading from natural gas. We thoroughly investigate the influence of crystal growth and grain boundaries on gas permeation. Read our pre-print on reseach square doi.org/10.21203/rs....
Synthesis and Helium Separation Performance of Polycrystalline Membranes of the High Precision Molecular Sieve MIL-116(Ga)
Helium is a finite but essential resource with important applications in medicine, research and aerospace. Conventional He-upgrading from natural methane gas (CH4) is done by cryogenic distillation. T...
doi.org
July 30, 2025 at 12:35 PM
Polycrystalline membranes from the "dense" MOF MIL-116(Ga) demonstrate exceptional performance in helium upgrading from natural gas. We thoroughly investigate the influence of crystal growth and grain boundaries on gas permeation. Read our pre-print on reseach square doi.org/10.21203/rs....
Three papers simultaneously submitted. One recently accepted. Only one in the making. Feels good to finally get things done again! Papers blocking the desk feels so bad. Hopefully, referees will be nice.
July 24, 2025 at 11:12 AM
Three papers simultaneously submitted. One recently accepted. Only one in the making. Feels good to finally get things done again! Papers blocking the desk feels so bad. Hopefully, referees will be nice.
If you ever get pressured to finish up a 5 year old paper with 25 co-authors on it, I can give you one advice: Say no and pretend to be dead. The more internal revision rounds you do the stronger your depression peak. They will answer-all emails with "major concerns" about their own piece of work...
July 17, 2025 at 1:15 PM
If you ever get pressured to finish up a 5 year old paper with 25 co-authors on it, I can give you one advice: Say no and pretend to be dead. The more internal revision rounds you do the stronger your depression peak. They will answer-all emails with "major concerns" about their own piece of work...
Follow-up to my reviewer experience with ACS Langmuir.
Invitation recieved on 08.07.2025, 4 a.m. CET.
Accepted on 10.07.2025 ~8 p.m. CET.
Reminder "Review due" recieved 12.07.2025 (Sa) 2 a.m.
Notification "Review no longer needed" 14.07.2025 (Mo) 9 a.m.
Will not review in the future.
Invitation recieved on 08.07.2025, 4 a.m. CET.
Accepted on 10.07.2025 ~8 p.m. CET.
Reminder "Review due" recieved 12.07.2025 (Sa) 2 a.m.
Notification "Review no longer needed" 14.07.2025 (Mo) 9 a.m.
Will not review in the future.
July 14, 2025 at 7:39 AM
Follow-up to my reviewer experience with ACS Langmuir.
Invitation recieved on 08.07.2025, 4 a.m. CET.
Accepted on 10.07.2025 ~8 p.m. CET.
Reminder "Review due" recieved 12.07.2025 (Sa) 2 a.m.
Notification "Review no longer needed" 14.07.2025 (Mo) 9 a.m.
Will not review in the future.
Invitation recieved on 08.07.2025, 4 a.m. CET.
Accepted on 10.07.2025 ~8 p.m. CET.
Reminder "Review due" recieved 12.07.2025 (Sa) 2 a.m.
Notification "Review no longer needed" 14.07.2025 (Mo) 9 a.m.
Will not review in the future.
Accepted to review a paper on Thursday. First reminder "your review is due soon" on Saturday, 2 a.m.
Calm down Langmuir, calm down.
Calm down Langmuir, calm down.
July 12, 2025 at 9:14 AM
Accepted to review a paper on Thursday. First reminder "your review is due soon" on Saturday, 2 a.m.
Calm down Langmuir, calm down.
Calm down Langmuir, calm down.
Reposted by Alexander Knebel
The #MOF Universe got a massive update with many additional information. We asked also for potential collaboration intentions - so have a look!
Many thanks to everyone who took part in the survey and to the COST Initiative EU4MOFs for funding my work!
crystalsymmetry.wordpress.com/mof-universe/
Many thanks to everyone who took part in the survey and to the COST Initiative EU4MOFs for funding my work!
crystalsymmetry.wordpress.com/mof-universe/
July 9, 2025 at 5:23 PM
The #MOF Universe got a massive update with many additional information. We asked also for potential collaboration intentions - so have a look!
Many thanks to everyone who took part in the survey and to the COST Initiative EU4MOFs for funding my work!
crystalsymmetry.wordpress.com/mof-universe/
Many thanks to everyone who took part in the survey and to the COST Initiative EU4MOFs for funding my work!
crystalsymmetry.wordpress.com/mof-universe/
Get a 3D-printer for your lab.
Quick solutions for urgent problems. ASAP
Quick solutions for urgent problems. ASAP
July 3, 2025 at 2:49 PM
Get a 3D-printer for your lab.
Quick solutions for urgent problems. ASAP
Quick solutions for urgent problems. ASAP
Would be cool if we could realize this biological aspect in our technical realization of membranes. Membrane technology is still suffering from a strong technical abstraction. Self-repair and stimuli-response is the way to go!
Nature research paper: Plants monitor the integrity of their barrier by sensing gas diffusion
https://go.nature.com/4kgOmwL
https://go.nature.com/4kgOmwL
Plants monitor the integrity of their barrier by sensing gas diffusion - Nature
A study using Arabidopsis shows that plants can monitor the integrity of their outer barriers by sensing gas diffusion, enabling them to initiate wound repair to prevent water loss and pathogen entry.
go.nature.com
July 3, 2025 at 8:35 AM
Would be cool if we could realize this biological aspect in our technical realization of membranes. Membrane technology is still suffering from a strong technical abstraction. Self-repair and stimuli-response is the way to go!
First day in office and I already need holidays again
homer simpson from the simpsons is standing in a grassy field .
ALT: homer simpson from the simpsons is standing in a grassy field .
media.tenor.com
June 23, 2025 at 11:19 AM
First day in office and I already need holidays again
When you come back from vacation and you have 234 emails, 25 missed phone calls and your students have 20+ questions, you remember why you went on vacation.
June 23, 2025 at 11:18 AM
When you come back from vacation and you have 234 emails, 25 missed phone calls and your students have 20+ questions, you remember why you went on vacation.
Our article on free standing MOF-Glass membranes published on ChemRxiv has 252 views and 217 downloads in 2 weeks. The ChemRxiv is becoming more and more attractive to the community of scientists. Hope we can overcome the publishing system at some point!
chemrxiv.org/engage/chemr...
chemrxiv.org/engage/chemr...
Unlocking Large-Area Free-Standing MOF-Glasses for Molecular Sieving Gas Separation Membranes
Membranes prepared of MOF glasses holds significant promise for gas separations due to the absence of grain boundary diffusion, liquid processibility, and tunability. However, the inherent high viscos...
chemrxiv.org
June 23, 2025 at 11:13 AM
Our article on free standing MOF-Glass membranes published on ChemRxiv has 252 views and 217 downloads in 2 weeks. The ChemRxiv is becoming more and more attractive to the community of scientists. Hope we can overcome the publishing system at some point!
chemrxiv.org/engage/chemr...
chemrxiv.org/engage/chemr...