| |
【Journal of Materials Science】Nitrogen-doped graphene-supported molybdenum dioxide electrocatalysts for oxygen reduction reaction
A simple one-step pyrolysis strategy has been developed to prepare molybdenum dioxide supported on nitrogen-doped graphene (MoO2/NG) as electrocatalyst for oxygen reduction reactions (ORR). Homogeneous anchoring of MoO2 nanoparticles on nitrogen-doped graphene was achieved for the composite synthesized at 500 °C (MoO2/NG-500). For the first time, the MoO2/NG composite manifests considerable ele...
http://www.polymer.cnt//ss/zhaobin/publicationsshow_13796.html |
| |
【Electrochimica Acta】Influence Of Annealing Temperature On Oxygen Reduction Activity Of Sputtered Co Catalysts On Vertically-Aligned Carbon Nanotubes
Cobalt and nitrogen were incorporated onto vertically-aligned carbon nanotubes (VACNTs) by a two-step process involving reactive sputtering and heat treatment to fabricate Co/N/CNT catalyst for oxygen reduction reaction (ORR). Both cyclic voltammetry (CV) and rotating-disk electrode (RDE) results demonstrate that annealing temperature plays an important role on improving catalyst activity, and t...
http://www.polymer.cnt//ss/zhaobin/publicationsshow_13727.html |
| |
Synergistic enhancement of oxygen reduction reaction with BC3 and graphitic-N in boron- and nitrogen-codoped porous graphene
Rational design and optimization of metal-free electrocatalysts for the oxygen reduction reaction (ORR) is crucial for fuel cells and metal-air batteries. However, identifying design principle that links the active sites and their synergistic effects is far from satisfactory, especially for B,N-codoped graphene. Herein, we provide four B,N-codoped porous graphenes with tunable contents of pyridi...
http://www.polymer.cnt//ss/chenxiaohua/publicationsshow_13343.html |
| |
Water-dispersible and magnetically recoverable Fe3O4/Pd@nitrogen-doped carbon composite catalysts for catalytic reduction of 4-nitrophenol
Water-dispersible and magnetically recoverable Fe3O4/Pd@nitrogen-doped carbon catalysts were prepared. The porous nitrogen-doped carbon shells facilitate to enhance the stability of Pd nanoparticles and the water-dispersibility. The catalysts have good catalytic activity for the reduction of 4-nitrophenol and its derivatives, and can be magnetically separated from the reaction solution.
http://www.polymer.cnt//ss/bianshaowei/publicationsshow_13133.html |
| |
A novel chemical reduction method to fabricate tunable selenium nanosphere and nanobelt based on cellulose nanocrystals
A novel chemical reduction method was reported to prepare tunable spherical or belted morphologies of nano-selenium (Se) based on cellulose nanocrystal (CNC). The homogeneous Se nanospheres with size of about 36?nm can be found for Se-Sphere-12H by adding ascorbic acid (VC) as assisted reducing agent. The Se nanobelt with a length of about 800?nm can be observed for Se-Belt-12H through one-pot rea...
http://www.polymer.cnt//ss/yuhouyong/publicationsshow_13126.html |
| |
Pd nanoparticles partially embedded in the inner wall of nitrogen-doped carbon hollow spheres as nanoreactors for catalytic reduction of 4-nitrophenol
Pd@nitrogen-doped carbon nanoreactors (Pd@NC) were synthesized by partially embedding small Pd nanoparticles in the inner wall of the nitrogen-doped carbon shells. Such embedment is critical for improving catalytic activity and stability.
http://www.polymer.cnt//ss/bianshaowei/publicationsshow_13112.html |
| |
Defective N/S‐codoped 3D cheese‐like porous carbon nanomaterial toward efficient oxygen reduction and Zn–air batteries
Developing a facile and cost-ef?cient method to synthesize carbon-based nanomaterials possessing excellent structural and functional properties has become one of the most attractive topics in energy conversion and storage fields. In this study, density functional theory calculation results reveal the origin of high oxygen reduction reaction (ORR) ...
http://www.polymer.cnt//ss/jiananzhang/publicationsshow_12935.html |
| |
Au Nanoparticle Decorated N-containing Polymer Spheres: Additive-Free Synthesis and Remarkable Catalytic Behavior for Reduction of 4-Nitrophenol
We demonstrated a simple, one-step route for assembling Au nanoparticles (NPs) on N-containing polymer nanospheres through in situ reductive growth process.Using resorcinol-melamine-formaldehyde resin nanospheres (RMF NSs) as a functional platform, neither a surfactant/ligand nor pretreatment is needed in the synthetic process of Au@RMF NSs hybrid nanostructure. When used as a catalytic media fo...
http://www.polymer.cnt//ss/jiananzhang/publicationsshow_12922.html |
| |
Cobalt-carbon core–shell nanoparticles aligned on wrinkle of N-doped carbon nanosheets with Pt-like activity for oxygen Reduction
A one-step soft-template induced strategy is demonstrated for the controlled synthesis of nitrogen-enriched core-shell structured cobalt-carbonnanoparticles (NPs) sequentially aligned on wrinkles of N-doped carbon nanosheets (Co-C@NWCs). The key feature of Co-C@NWCs for ORR catalysis enhancement is that it combines high catalytic centers of Co-C core-shell NPs with the wrinkle of carbon nanoshee...
http://www.polymer.cnt//ss/jiananzhang/publicationsshow_12917.html |
| |
Gold Nanoparticles/Multi-Walled Carbon Nanotubes Hybrid as a Stable Catalyst for Oxygen Reduction Reaction
A gold nanoparticles/multi-walled carbon nanotubes (Au/MWNTs) hybrid was prepared by
the scalable one-pot reduction of chloroauric acid with etrakis(hydroxymethyl)phosphonium
chloride in the presence of MWNTs. TEM, XRD, FT-IR, XPS and TG analyses indicate that gold nanoparticles (Au NPs, d≈2.9 nm) protected with tris(hydroxymethyl)phosphine oxide (THPO) ligand were deposited on the MWNTs,...
http://www.polymer.cnt//ss/luokun998/publicationsshow_12908.html |
| |