Publications de Vikram Vinayak Karve

Anisotropic node distortions in amorphous MOFs: Low-valent Zr sites as catalytic hotspots

Berend Smit, Wendy Lee Queen, Emad Oveisi, Kumar Varoon Agrawal, Jian Hao, Till Marian Schertenleib, Beatriz Bueno Mouriño, Timo Markus Oskar Felder, Vikram Vinayak Karve, Andres Adolfo Ortega Guerrero

We introduce a new approach to defect engineering in Zr-based metal-organic frameworks (Zr-MOFs), aiming to reduce Zr site valency while preserving high node connectivity. Using a rapid heat treatment (RHT) in humid air, oxygen vacancies (O-vacancies) were ...

Elsevier BV2025

A post-synthetic modification strategy for enhancing Pt adsorption efficiency in MOF/polymer composites

Wendy Lee Queen, Emad Oveisi, Mounir Driss Mensi, Till Marian Schertenleib, Mehrdad Asgari, Olga Trukhina, Vikram Vinayak Karve

Growing polymers inside porous metal-organic frameworks (MOFs) can allow incoming guests to access the backbone of otherwise non-porous polymers, boosting the number and/or strength of available adsorption sites inside the porous support. In the present wo ...

Royal Soc Chemistry2024

Densification and shaping of pure Cu-BTC powders using a solid-state chemical transformation

Wendy Lee Queen, Jordi Espin Marti, Mehrdad Asgari, Mathieu Soutrenon, Vikram Vinayak Karve, Alexandre Mabillard

MOFs are a class of porous crystalline materials whose unique properties have led to applicability in several fields ranging from gas adsorption to drug delivery. Despite their high potential, MOFs are usually found as fine powders, a property that can lim ...

Iop Publishing Ltd2024

N-Containing Carbons Derived from Microporous Coordination Polymers for Use in Post-Combustion Flue Gas Capture

Wendy Lee Queen, Emad Oveisi, Jordi Espin Marti, Vikram Vinayak Karve

Herein, novel carbons that, owing to a high density of micropores (up to 79%) and N-content (up to 14.9%), offering exciting potential for post-combustion CO2 capture are reported. Given that little is known about how starting materials impact the structur ...

WILEY-V C H VERLAG GMBH2023

3D vs. turbostratic: controlling metal-organic framework dimensionality via N-heterocyclic carbene chemistry

Wendy Lee Queen, Emad Oveisi, Mounir Driss Mensi, Till Marian Schertenleib, Shuliang Yang, Mehrdad Asgari, Ilia Kochetygov, Vikram Vinayak Karve, Anita Justin

Using azolium-based ligands for the construction of metal-organic frameworks (MOFs) is a viable strategy to immobilize catalytically active N-heterocyclic carbenes (NHC) or NHC-derived species inside MOF pores. Thus, in the present work, a novel copper MOF ...

ROYAL SOC CHEMISTRY2022

Recent Advances in MOF-Based Adsorbents for Dye Removal from the Aquatic Environment

Mehrdad Asgari, Vikram Vinayak Karve

The adsorptive removal of dyes from industrial wastewater using commercially available adsorbents is not significantly efficient. Metal-organic frameworks (MOFs) offer outstanding properties which can boost the separation performance over current commercia ...

MDPI2022

Solid-state synthesis of a MOF/polymer composite for hydrodeoxygenation of vanillin

Wendy Lee Queen, Olga Trukhina, Vikram Vinayak Karve, Dragos-Constantin Stoian

A new solid-state method was used to introduce a furan-thiourea polymer into the pores of a MOF, Cr-BDC. Next, the activity of the new MOF-polymer composite containing Pd was assessed in the catalytic hydrodeoxygenation of vanillin, a biomass derived chemi ...

Royal Society of Chemistry2022

Understanding Your Support System: The Design of a Stable Metal-Organic Framework/Polyazoamine Support for Biomass Conversion

Wendy Lee Queen, Jeremy Luterbacher, Shuliang Yang, Mehrdad Asgari, Olga Trukhina, Ilia Kochetygov, Vikram Vinayak Karve

Introducing oligomeric or polymeric units into metal- organic frameworks (MOFs) can result in composites that have significantly improved properties when compared with the individual MOF or polymer building blocks. With such synergy in mind, this work pres ...

AMER CHEMICAL SOC2022

Hydro-processing of biomass using novel metal-organic framework (MOF)/polymer composite catalysts

Vikram Vinayak Karve

Generating value, in the form of functional chemicals, from biomass is a critical need of today. It is expected that replacing petroleum with biomass as the source of many commodity and fine chemicals can lead the transition away from a fossil-fuel based e ...

EPFL2022

Hybridization of Synthetic Humins with a Metal-Organic Framework for Precious Metal Recovery and Reuse

Wendy Lee Queen, Jordi Espin Marti, Till Marian Schertenleib, Olga Trukhina, Claudia Esther Avalos, Vikram Vinayak Karve

The number of synthetic strategies used to functionalize MOFs with polymers is rapidly growing; this stems from the knowledge that non-native polymeric guests can significantly boost MOF performance in a number of desirable applications. The current work p ...

AMER CHEMICAL SOC2021