Levulinic acid hydrogenation to γ-valerolactone over single Ru atoms on a TiO2@nitrogen doped carbon support

2021 ◽  
Author(s):  
Kaili Zhang ◽  
Qinglei Meng ◽  
Haihong Wu ◽  
Tongying Yuan ◽  
Shitao Han ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Levulinic Acid ◽  
Room Temperature ◽  
Carbon Support ◽  
Complete Conversion ◽  
Turnover Frequency ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

TiO2@nitrogen doped porous carbon dispersed single Ru atom catalyst (Ru/TiO2@CN) efficiently transforms levulinic acid into γ-valerolactone at room temperature in water with a turnover frequency of 278 molGVL molRu−1 h−1 at complete conversion.

scholarly journals High-performance electrocatalyst based on polyazine derived mesoporous nitrogen-doped carbon for oxygen reduction reaction

RSC Advances ◽  
2021 ◽  
Vol 11 (47) ◽  
pp. 29555-29563
Author(s):  
Songlin Zhao ◽  
Fushan Chen ◽  
Qunfeng Zhang ◽  
Lingtao Meng
Keyword(s):  
Renewable Energy ◽  
Oxygen Reduction Reaction ◽  
Porous Carbon ◽  
High Performance ◽  
Carbon Materials ◽  
Reduction Reaction ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Energy Conversion Systems ◽  
Nitrogen Doped Carbon

Nitrogen-doped porous carbon materials have high potential in metal-free electrocatalysts, which is essential for several renewable energy conversion systems.

N-Doped porous carbon nanotubes: synthesis and application in catalysis

2017 ◽  
Vol 53 (5) ◽  
pp. 929-932 ◽  
Author(s):  
Zhenzhen Yang ◽  
Zhenghui Liu ◽  
Hongye Zhang ◽  
Bo Yu ◽  
Yanfei Zhao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Porous Carbon ◽  
Hydrogen Transfer ◽  
Catalytic Efficiency ◽  
Oxidation Reactions ◽  
Hierarchically Porous ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

Hierarchically porous nitrogen-doped carbon nanotubes were prepared; they exhibited high catalytic efficiency for C–H arylation, hydrogen transfer and oxidation reactions.

scholarly journals Nickel sulfide nanocrystals on nitrogen-doped porous carbon nanotubes with high-efficiency electrocatalysis for room-temperature sodium-sulfur batteries

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Zichao Yan ◽  
Jin Xiao ◽  
Weihong Lai ◽  
Li Wang ◽  
Florian Gebert ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Porous Carbon ◽  
Density Functional ◽  
Room Temperature ◽  
Lewis Base ◽  
Nitrogen Doped ◽  
High Electronic Conductivity ◽  
Sulfur Host ◽  
Sodium Sulfur ◽  
Sulfur Cathodes

Abstract Polysulfide dissolution and slow electrochemical kinetics of conversion reactions lead to low utilization of sulfur cathodes that inhibits further development of room-temperature sodium-sulfur batteries. Here we report a multifunctional sulfur host, NiS2 nanocrystals implanted in nitrogen-doped porous carbon nanotubes, which is rationally designed to achieve high polysulfide immobilization and conversion. Attributable to the synergetic effect of physical confinement and chemical bonding, the high electronic conductivity of the matrix, closed porous structure, and polarized additives of the multifunctional sulfur host effectively immobilize polysulfides. Significantly, the electrocatalytic behaviors of the Lewis base matrix and the NiS2 component are clearly evidenced by operando synchrotron X-ray diffraction and density functional theory with strong adsorption of polysulfides and high conversion of soluble polysulfides into insoluble Na2S2/Na2S. Thus, the as-obtained sulfur cathodes exhibit excellent performance in room-temperature Na/S batteries.

scholarly journals Directing nitrogen-doped carbon support chemistry for improved aqueous phase hydrogenation catalysis

2020 ◽  
Vol 10 (14) ◽  
pp. 4794-4808
Author(s):  
Monika Bosilj ◽  
Lina Rustam ◽  
Ralf Thomann ◽  
Julia Melke ◽  
Anna Fischer ◽  
...  
Keyword(s):  
Aqueous Phase ◽  
Nitrogen Doping ◽  
Carbon Support ◽  
Support Materials ◽  
Nitrogen Doped ◽  
Hydrogenation Catalysis ◽  
And Performance ◽  
Nitrogen Doped Carbon

Influencing stability and performance through directing nitrogen-doping in carbon support materials.

A graphene/nitrogen-doped carbon nanofiber composite as an anode material for sodium-ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (127) ◽  
pp. 104822-104828 ◽  
Author(s):  
Juan Zhang ◽  
Zhian Zhang ◽  
Xingxing Zhao
Keyword(s):  
Anode Material ◽  
Carbon Nanofibers ◽  
Porous Carbon ◽  
Carbon Nanofiber ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Nanofiber Composite ◽  
Nitrogen Doped ◽  
Porous Carbon Nanofiber ◽  
Nitrogen Doped Carbon

A graphene/N-doped porous carbon nanofiber (RGO/NPC) composite was designed as an anode material for sodium-ion batteries (SIBs). A microstructure of fine and uniform N-doped porous carbon nanofibers decorated on 2D RGO sheets was obtained.

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