Publications by Antoine Philippe Van Muyden

High-Work-Function 2D Perovskites as Passivation Agents in Perovskite Solar Cells

Michael Graetzel, Mohammad Khaja Nazeeruddin, Paul Joseph Dyson, Ulf Anders Hagfeldt, Antoine Philippe Van Muyden, Farzaneh Fadaei Tirani, Erfan Shirzadi, Hiroyuki Kanda, Brian Irving Carlsen, Fatemeh Ansari, Felix Thomas Eickemeyer, Olivier Ouellette, Hiroaki Jinno

Various approaches have been employed to passivate the defects in perovskite films used in perovskite solar cells (PSCs). However, the passivation mechanism is often unclear at a molecular level, and the reason for enhanced PSC performance often remains el ...

Amer Chemical Soc2023

Mechanistic classification and benchmarking of polyolefin depolymerization over silica-alumina-based catalysts

Mounir Driss Mensi, Paul Joseph Dyson, Antoine Philippe Van Muyden, Felix Daniel Bobbink, Wei-Tse Lee, Jed Russell Carullo

Carbon-carbon bond cleavage mechanisms play a key role in the selective deconstruction of alkanes and polyolefins. Here, we show that the product distribution, which encompasses carbon range and formation of unsaturated and isomerization products, serves a ...

Nature Research2022

Hydrogenation of the pivotal biorefinery platform molecule levulinic acid into renewable fuel gamma-valerolactone catalyzed by unprecedented highly active and stable ruthenium nanoparticles in aqueous media

Paul Joseph Dyson, Antoine Philippe Van Muyden

gamma-Valerolactone (GVL) is a key downstream product of renewable biomass with enormous potential for the manufacture of advanced biofuels, bio-based chemicals, materials or for its direct use as an additive to gasoline and is obtained by the hydrogenatio ...

Pergamon-Elsevier Science Ltd2022

Lignin First: Confirming the Role of the Metal Catalyst in Reductive Fractionation

Gabor Laurenczy, Paul Joseph Dyson, Zhaofu Fei, Ning Yan, Antoine Philippe Van Muyden, Lu Chen, Xinjiang Cui

Rhodium nanoparticles embedded on the interior of hollow porous carbon nanospheres, able to sieve monomers from polymers, were used to confirm the precise role of metal catalysts in the reductive catalytic fractionation of lignin. The study provides clear ...

AMER CHEMICAL SOC2021

Catalytic hydrocracking of synthetic polymers into grid-compatible gas streams

Paul Joseph Dyson, Anne-Clémence Corminboeuf, Antoine Philippe Van Muyden, Felix Daniel Bobbink, Reza Zamani, Kun-Han Lin

The use of methane as one of the cleanest energy sources has attracted significant public awareness, and methane production processes with less environmental impact than fracking are receiving considerable attention. Catalytic hydrocracking of plastic mate ...

2021

Cycloaddition of Biogas-Contained CO2 into Epoxides via Ionic Polymer Catalysis: An Experimental and Process Simulation Study

Mohammad Khaja Nazeeruddin, François Maréchal, Paul Joseph Dyson, Antoine Philippe Van Muyden, Felix Daniel Bobbink, Masoud Talebi Amiri, Alexy Robert Bonnin

Biogas upgrading technologies are crucial for the production of high-purity biomethane. Efficient CO2 removal methods that are currently commercialized rely on "catch-and-release" mechanisms, and the CO2 stream is usually discharged into the atmosphere wit ...

AMER CHEMICAL SOC2021

Towards a Plastic Circular Economy: Bio-derived Plastics and their End-of-life Strategies

Antoine Philippe Van Muyden

Herein, we describe the status of bio-derived plastics as well as the existing and emerging technologies that are available for their post-consumer end-of-life valorization. We first present how bio-derived plastics can be produced from renewable materials ...

SWISS CHEMICAL SOC2021

Anchoring single platinum atoms onto nickel nanoparticles affords highly selective catalysts for lignin conversion

Gabor Laurenczy, Paul Joseph Dyson, Zhaofu Fei, Ulf Anders Hagfeldt, Antoine Philippe Van Muyden, Linfeng Pan, Lichen Bai, Lu Chen, Jun Li, Yun Tong

Due to the highly complex polyphenolic structure of lignin, depolymerization without a prior chemical treatment is challenging, and new catalysts are required. Atomically dispersed catalysts are able to maximize the atomic efficiency of noble metals, simul ...

ELSEVIER2021

Direct conversion of plastic materials into methane and liquid fuels

Paul Joseph Dyson, Antoine Philippe Van Muyden, Felix Daniel Bobbink, Wei-Tse Lee

The invention relates to a method for direct conversion of plastic materials into methane and/or liquid fuel and use of ruthenium-modified zeolite to catalyse this conversion. ...

2020

Acceptorless dehydrogenation and hydrogenation of N- and O-containing compounds on Pd3Au1(111) facets

Paul Joseph Dyson, Zhaofu Fei, Antoine Philippe Van Muyden, Tao Wang, Zhangjun Huang, Xinjiang Cui

Catalytic dehydrogenation and hydrogenation of amines and alcohols are important in the synthesis of fine chemicals. Despite several efficient homogeneous catalysts having been identified, highly active heterogeneous catalysts remain elusive, although they ...

2020

Utility of Core-Shell Nanomaterials in the Catalytic Transformations of Renewable Substrates

Paul Joseph Dyson, Antoine Philippe Van Muyden

In recent years, core-shell nano-catalysts have received increasing attention due to their tunable properties and broad applications in catalysis. Control of the two components of these materials allows their catalytic properties to be tuned to various sus ...

WILEY-V C H VERLAG GMBH2020

Selective hydrogenation of lignin-derived compounds under mild conditions

Gabor Laurenczy, Paul Joseph Dyson, Antoine Philippe Van Muyden, Lu Chen, Xinjiang Cui

A key challenge in the production of lignin-derived chemicals is to reduce the energy intensive processes used in their production. Here, we show that well-defined Rh nanoparticles dispersed in sub-micrometer size carbon hollow spheres, are able to hydroge ...

2020

Catalyst design for C-O bond hydrogenolysis of renewable materials

Antoine Philippe Van Muyden

Anthropogenic carbon dioxide emissions leading to climate change require to use of renewable carbon sources such as CO2 and biomass which differ from fossil resources by having a higher number of oxygen atoms. Therefore, catalytic C-O bond cleavage will pl ...

EPFL2020

Metal-Sulfide Catalysts Derived from Lignosulfonate and their Efficient Use in Hydrogenolysis

Paul Joseph Dyson, Zhaofu Fei, Xile Hu, Antoine Philippe Van Muyden, Lichen Bai, Sijie Liu, Xinjiang Cui, Xiang Li

Catalytic lignosulfonate valorization is hampered by the in situ liberation of sulfur that ultimately poisons the catalyst. To overcome this limitation, metal sulfide catalysts were developed that are able to cleave the C-O bonds of lignosulfonate and are ...

2019

Oxidative cleavage of -O-4 bonds in lignin model compounds with a single-atom Co catalyst

Paul Joseph Dyson, Zhaofu Fei, Xile Hu, Antoine Philippe Van Muyden, Lichen Bai, Zhangjun Huang, Sijie Liu, Xinjiang Cui, Xiang Li

Single-atom catalysts are emerging as primary catalysts for many reactions due to their 100% utilization of active metal centers leading to high catalytic efficiencies. Herein, we report the use of a single-atom Co catalyst for the oxidative cleavage of th ...

2019

Sustainable, Reshapable Surfactant-Polyelectrolyte Plastics Employing Water as a Plasticizer

Paul Joseph Dyson, Zhaofu Fei, Antoine Philippe Van Muyden, Zhangjun Huang, Haiyan Jia

Natural polymers such as those present in foods contain abundant noncovalent intra- and intermolecular interactions, notably hydrogen bonds, which make them rigid when dry, but on exposure to water soften, due to disruption of these interactions. This soft ...

2019

Discovery of a Highly Active Catalyst for Hydrogenolysis of C-O Bonds via Systematic, Multi-metallic Catalyst Screening

Paul Joseph Dyson, Ning Yan, Antoine Philippe Van Muyden, Sviatlana Siankevich

Hydrogenolysis of C-O bonds is a highly challenging reaction with the most efficient catalysts based on bimetallic assemblies. Systematic studies to identify the optimum metal combination have not been performed and, therefore, we designed a method to scre ...

Wiley-VCH Verlag2019

En route to CO2-containing renewable materials: catalytic synthesis of polycarbonates and non-isocyanate polyhydroxyurethanes derived from cyclic carbonates

Paul Joseph Dyson, Antoine Philippe Van Muyden, Felix Daniel Bobbink

Combining CO2-chemistry with biomass conversion allows renewable polymeric materials including polycarbonates and polyhydroxyurethanes (PHUs) to be generated. The demand for robust materials with modular properties that can be prepared on an industrial sca ...

Royal Society of Chemistry2019

Indirect CO2 Methanation: Hydrogenolysis of Cyclic Carbonates Catalyzed by Ru-Modified Zeolite Produces Methane and Diols

Paul Joseph Dyson, Antoine Philippe Van Muyden, Felix Daniel Bobbink, Wei-Tse Lee, Zhangjun Huang

We report a ruthenium‐modified zeolite which efficiently transforms propylene carbonate to propylene glycol and methane, under solvent‐free conditions. The catalyst achieved high product selectivity and no significant ageing effect was observed after multi ...

Wiley-VCH Verlag GmbH2019

Efficient cleavage of aryl ether C–O linkages by Rh–Ni and Ru–Ni nanoscale catalysts operating in water

Paul Joseph Dyson, Vassily Hatzimanikatis, Duncan Thomas Lindsay Alexander, Ning Yan, Antoine Philippe Van Muyden, Safak Bulut, Georgios Savoglidis, Sviatlana Siankevich

Bimetallic Ru–Ni and Rh–Ni nanocatalysts coated with a phase transfer agent efficiently cleave aryl ether C–O linkages in water in the presence of hydrogen. For dimeric substrates with weaker C–O linkages, i.e. α-O-4 and β-O-4 bonds, low loadings of the pr ...

2018