Dry reforming of methane over single-atom Rh/Al<sub>2</sub>O<sub>3</sub> catalysts prepared by exsolution

Mekkering, Martijn J.; Biemolt, Jasper; Graaf, Jeen de; Lin, Yi-An; Leest, Nicolaas P. van; Troglia, Alessandro; Bliem, Roland; Bruin, Bas de; Rothenberg, Gadi; Yan, Ning

doi:10.1039/d2cy02126a

Cited by 10 publications

(7 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Mekkering et al [269] prepared single-atom Rh/Al 2 O 3 catalysts that were stable under metal agglomeration during DRM at 700-900 °C. Despite the occurrence of oxidation state changes (Rh(III) to Rh(II) or Rh(0)) through the reaction, migrations to/ from the immediate subsurface layer (~1 nm) better explained the catalytic results.…”

Section: Ru and Rh-based Catalysts For Dry Reforming Of Methanementioning

confidence: 99%

See 1 more Smart Citation

Noble Metals in Recent Developments of Heterogeneous Catalysts for CO₂ Conversion Processes

et al. 2023

View full text Add to dashboard Cite

show abstract

Section: Ru and Rh-based Catalysts For Dry Reforming Of Methanementioning

confidence: 99%

“…Mekkering et al [269] . prepared single‐atom Rh/Al 2 O 3 catalysts that were stable under metal agglomeration during DRM at 700–900 °C.…”

Section: Dry Reforming Of Methanementioning

confidence: 99%

Noble Metals in Recent Developments of Heterogeneous Catalysts for CO₂ Conversion Processes

et al. 2023

View full text Add to dashboard Cite

show abstract

“…[24] Although the reaction rate in these cases decreases with a decreasing metal loading, the overall activity per active site increases. [25] One area where single-atom catalysts could make a difference is in the photochemical catalytic oxidation of carboncarbon bonds with singlet oxygen, 1 O 2 . The transit of oxygen to the singlet state allows many oxidation pathways.…”

Section: Introductionmentioning

confidence: 99%

“…The worldwide scarcity of noble metals and the need for highly selective catalytic processes are driving the increased interest in single-atom catalysts (SACs). [1][2][3][4] These catalysts have the highest surface-to-volume ratio, and often show different chemoselectivity compared to traditional supported nanoparticles due to their uniform active sites. [5][6][7][8] As such, SACs form a bridge between homogeneous and heterogeneous catalysis.…”

Section: Introductionmentioning

confidence: 99%

Selective Anthracene Photooxidation over Titania‐supported Single Atom Catalysts

Mekkering,

Rothenberg,

Zhang

et al. 2023

ChemCatChem

Self Cite

View full text Add to dashboard Cite

Single‐atom catalysts (SACs) often show exceptionally high performance per metal loading. Besides benefiting from a better atom utilisation, the metal‐support interaction is more pronounced in SACs compared to traditional nanoparticle catalysts. Thus, using SACs in photochemical conversions is of great advantage where the rapid reactions often depend on the synergistic interaction of the active site with the photoactive support. Here we show the importance of this interaction by maximizing the active site/support interface using SACs. As an example, we examine the oxidation reaction of anthracene to anthracene‐9,10‐endoperoxide (EPO) in the presence of 0.1 wt% Pt/TiO2. Our SACs give a six‐fold improvement compared to dense packed nanoparticle catalysts (TOF=113 mMol Anthracene gPt−1 min‐−1 for the SAC). We attribute this to the synergy between the active site and the support. Moreover, we show that photocatalytic conversion is possible with photons of lower energy (2.7 eV) than the bandgap of pristine TiO2 (Eg=3.0–3.2 eV) thanks to organic doping of the metal oxide.

show abstract

“…During the past century, using catalysts to convert methane to useful products seemed to be advantageous in terms of product yield and overall process efficiency. Meanwhile, these methods consume much energy [47][48][49].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Acetylene and Benzene in Controlled Methane-Plasma System

Kapustin,

Grinvald,

Agrba

et al. 2023

Preprint

View full text Add to dashboard Cite

High-energy chemistry is a special way of accelerating chemical reactions by transferring large portions of energy to individual molecules. The synthesis of acetylene and benzene is a valuable chemical product and used in technologies for the many organic products obtaining: synthetic rubber, vinyl chloride, acrylonitrile, ethylene, styrene. The article proposes an original version of the experimental setup and technology for plasma-activated methane conversion. Was tested a system of two connected reactors, one of which (the “cold” reactor) was displaced out of the microwave zone, and the other (the “hot” reactor) was located inside this zone. The surface of the “hot” reactor (which means its walls) was purged with argon at the selected temperature and flow rate. As a result, carbon phase structures were concentrated in the “cold” reactor, and organics (acetylene and benzene) were synthesized in the near-surface area of the “hot” reactor. Heat removal from the “hot” walls of the reactor by gas purging provided temperature control of the methane microwave plasma reforming process. The conversion of methane into acetylene and other products depends on the extremum point at the maximum temperature and pressure of the feeding gas stream in the “hot” reactor. In this system, a low-temperature IR optical cell made it possible to identify and extract the resulting conversion products.

show abstract

Dry reforming of methane over single-atom Rh/Al₂O₃ catalysts prepared by exsolution

Abstract: Single-atom catalysts often show exceptionally high performance per metal loading.

Cited by 10 publications

References 38 publications

Noble Metals in Recent Developments of Heterogeneous Catalysts for CO₂ Conversion Processes

Noble Metals in Recent Developments of Heterogeneous Catalysts for CO₂ Conversion Processes

Selective Anthracene Photooxidation over Titania‐supported Single Atom Catalysts

Synthesis of Acetylene and Benzene in Controlled Methane-Plasma System

Contact Info

Product

Resources

About

Dry reforming of methane over single-atom Rh/Al2O3 catalysts prepared by exsolution

Abstract: Single-atom catalysts often show exceptionally high performance per metal loading.

Cited by 10 publications

References 38 publications

Noble Metals in Recent Developments of Heterogeneous Catalysts for CO2 Conversion Processes

Noble Metals in Recent Developments of Heterogeneous Catalysts for CO2 Conversion Processes

Selective Anthracene Photooxidation over Titania‐supported Single Atom Catalysts

Synthesis of Acetylene and Benzene in Controlled Methane-Plasma System

Contact Info

Product

Resources

About

Dry reforming of methane over single-atom Rh/Al₂O₃ catalysts prepared by exsolution

Noble Metals in Recent Developments of Heterogeneous Catalysts for CO₂ Conversion Processes

Noble Metals in Recent Developments of Heterogeneous Catalysts for CO₂ Conversion Processes