Nitrogen doped carbon spheres with wrinkled cages for the selective oxidation of 5-hydroxymethylfurfural to 5-formyl-2-furancarboxylic acid

2021 ◽  
Vol 57 (16) ◽  
pp. 2005-2008
Author(s):  
Jiaping Zhu ◽  
Chaojian Yao ◽  
Ayan Maity ◽  
Jielai Xu ◽  
Tong Zhan ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Selective Oxidation ◽  
High Catalytic Activity ◽  
Carbon Spheres ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

Nitrogen doped carbon spheres with wrinkled cages exhibited high catalytic activity and selectivity in the oxidation of 5-hydroxymethylfurfural to 5-formyl-2-furancarboxylic acid using TBHP as the oxidant.

Nitrogen-doped carbon sheets derived from chitin as non-metal bifunctional electrocatalysts for oxygen reduction and evolution

RSC Advances ◽  
2015 ◽  
Vol 5 (69) ◽  
pp. 56121-56129 ◽  
Author(s):  
Haoran Yuan ◽  
Lifang Deng ◽  
Xixi Cai ◽  
Shungui Zhou ◽  
Yong Chen ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Activated Carbon ◽  
Oxygen Reduction ◽  
High Catalytic Activity ◽  
Nitrogen Doped ◽  
Bifunctional Electrocatalysts ◽  
Nitrogen Doped Carbon

Nitrogen-doped activated carbon sheets were derived from chitin, which exhibited remarkable activity for ORR and high catalytic activity towards OER.

Mo2C quantum dot embedded chitosan-derived nitrogen-doped carbon for efficient hydrogen evolution in a broad pH range

2016 ◽  
Vol 52 (86) ◽  
pp. 12753-12756 ◽  
Author(s):  
Zonghua Pu ◽  
Min Wang ◽  
Zongkui Kou ◽  
Ibrahim Saana Amiinu ◽  
Shichun Mu
Keyword(s):  
Catalytic Activity ◽  
Quantum Dot ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
High Catalytic Activity ◽  
Nitrogen Doped ◽  
Ph Range ◽  
Nitrogen Doped Carbon

Mo2C QDs/NGCLs exhibit high catalytic activity and durability for the hydrogen evolution reaction in a broad pH range.

Cobalt nanoparticle-embedded nitrogen-doped carbon/carbon nanotube frameworks derived from a metal–organic framework for tri-functional ORR, OER and HER electrocatalysis

2019 ◽  
Vol 7 (8) ◽  
pp. 3664-3672 ◽  
Author(s):  
Hele Guo ◽  
Qichun Feng ◽  
Jixin Zhu ◽  
Jingsan Xu ◽  
Qianqian Li ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Carbon Nanotube ◽  
Metal Organic Framework ◽  
High Catalytic Activity ◽  
Nitrogen Doped ◽  
Metal Organic ◽  
Nitrogen Doped Carbon ◽  
Cobalt Nanoparticle ◽  
Organic Framework

A Co@N-CNTF electrocatalyst derived from a metal–organic framework exhibits high catalytic activity in the ORR, OER and HER.

High catalytic activity of mesoporous Co–N/C catalysts for aerobic oxidative synthesis of nitriles

2016 ◽  
Vol 6 (14) ◽  
pp. 5746-5753 ◽  
Author(s):  
Sensen Shang ◽  
Lianyue Wang ◽  
Wen Dai ◽  
Bo Chen ◽  
Ying Lv ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
High Catalytic Activity ◽  
Efficient Synthesis ◽  
Nitrogen Doped ◽  
Highly Efficient ◽  
Carbon Catalysts ◽  
Nitrogen Doped Carbon

We report the synthesis and assessment of novel mesoporous cobalt-coordinated nitrogen-doped carbon catalysts (meso-Co–N/C) for highly efficient synthesis of nitriles.

Catalytic Activity of Metal Nanoparticles Supported on Nitrogen-Doped Carbon Spheres

ChemCatChem ◽  
2010 ◽  
Vol 2 (1) ◽  
pp. 51-54 ◽  
Author(s):  
Amit A. Deshmukh ◽  
Rafique Ul Islam ◽  
Michael J. Witcomb ◽  
Willem A. L. van Otterlo ◽  
Neil J. Coville
Keyword(s):  
Catalytic Activity ◽  
Metal Nanoparticles ◽  
Carbon Spheres ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

scholarly journals Core@shell structured Co–CoO@NC nanoparticles supported on nitrogen doped carbon with high catalytic activity for oxygen reduction reaction

RSC Advances ◽  
2018 ◽  
Vol 8 (26) ◽  
pp. 14462-14472 ◽  
Author(s):  
Zihao Zhen ◽  
Zhongqing Jiang ◽  
Xiaoning Tian ◽  
Lingshan Zhou ◽  
Binglu Deng ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Core Shell ◽  
High Catalytic Activity ◽  
Simple Method ◽  
Nitrogen Doped ◽  
Stable Performance ◽  
Nitrogen Doped Carbon

A simple method has been developed for the synthesis of Co–CoO@NC/NC, which exhibits high and stable performance for the ORR.

Enhanced catalytic activity of low-Pt content nanocatalysts supported on hollow carbon spheres for the ORR in alkaline media

MRS Advances ◽  
2020 ◽  
Vol 5 (57-58) ◽  
pp. 2961-2972
Author(s):  
P.C. Meléndez-González ◽  
E. Garza-Duran ◽  
J.C. Martínez-Loyola ◽  
P. Quintana-Owen ◽  
I.L. Alonso-Lemus ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Anion Exchange ◽  
Average Particle Size ◽  
Synthesis Method ◽  
Alkaline Media ◽  
High Catalytic Activity ◽  
Average Particle ◽  
Carbon Spheres ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

In this work, low-Pt content nanocatalysts (≈ 5 wt. %) supported on Hollow Carbon Spheres (HCS) were synthesized by two routes: i) colloidal conventional polyol, and ii) surfactant-free Bromide Anion Exchange (BAE). The nanocatalysts were labelled as Pt/HCS-P and Pt/HCS-B for polyol and BAE, respectively. The physicochemical characterization of the nanocatalysts showed that by following both methods, a good control of chemical composition was achieved, obtaining in addition well dispersed nanoparticles of less than 3 nm TEM average particle size (d) on the HCS. Pt/HCS-B contained more Pt0 species than Pt/HCS-P, an effect of the synthesis method. In addition, the structure of the HCS remains more ordered after BAE synthesis, compared to polyol. Regarding the catalytic activity for the Oxygen Reduction Reaction (ORR) in 0.5 M KOH, Pt/HCS-P and Pt/HCS-B showed a similar performance in terms of current density (j) at 0.9 V vs. RHE than the benchmark commercial 20 wt. % Pt/C. However, Pt/HCS-P and Pt/HCS-B demonstrated a 6 and 5-fold increase in mass catalytic activity compared to Pt/C, respectively. A positive effect of the high specific surface area of the HCS and its interactions with metal nanoparticles and electrolyte, which promoted the mass transfer, increased the performance of Pt/HCS-P and Pt/HCS-B. The high catalytic activity showed by Pt/HCS-B and Pt/HCS-P for the ORR, even with a low-Pt content, make them promising cathode nanocatalysts for Anion Exchange Membrane Fuel Cells (AEMFC).

Engineering Mn Atomic Sites in Multi-Dimensional Nitrogen-Doped Carbon for Highly Efficient Oxygen Reduction Reaction

2022 ◽  
Author(s):  
Huixin Ma ◽  
Daijie Deng ◽  
Honghui Zhang ◽  
Feng Chen ◽  
Junchao Qian ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Single Atom ◽  
Two Dimensional ◽  
One Dimensional ◽  
Nitrogen Doped ◽  
Half Wave ◽  
Nitrogen Doped Carbon

Nitrogen-coordinated single-atom manganese in multi-dimensional nitrogen-doped carbon electrocatalysts (Mn-NC) was successful constructed by combing two-dimensional nanosheets and one-dimensional nanofibers. The Mn-NC exhibited excellent oxygen reduction reaction catalytic activity with half-wave...

Sign in / Sign up

Export Citation Format

Share Document