Light-weight 3D Co–N-doped hollow carbon spheres as efficient electrocatalysts for rechargeable zinc–air batteries

Nanoscale ◽  
2018 ◽  
Vol 10 (22) ◽  
pp. 10412-10419 ◽  
Author(s):  
Shengmei Chen ◽  
Junye Cheng ◽  
Longtao Ma ◽  
Shanke Zhou ◽  
Xiuwen Xu ◽  
...  
Keyword(s):  
Light Weight ◽  
Carbon Spheres ◽  
Facile Synthesis ◽  
Co Doping ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres ◽  
Zinc Air Batteries

Facile synthesis of Co–N-doped hollow carbon spheres for rechargeable zinc–air batteries and the effect of their Co doping contents on ORR performance.

Raspberry-like hollow carbon nanospheres with enhanced matrix-free peptide detection profiles

2016 ◽  
Vol 52 (8) ◽  
pp. 1709-1712 ◽  
Author(s):  
Tingting Liu ◽  
Lili Qu ◽  
Kun Qian ◽  
Jian Liu ◽  
Qiao Zhang ◽  
...  
Keyword(s):  
Carbon Spheres ◽  
Carbon Nanospheres ◽  
Facile Synthesis ◽  
Free Peptide ◽  
Peptide Detection ◽  
Hollow Carbon ◽  
Matrix Free ◽  
Hollow Carbon Spheres

This communication reports the facile synthesis of hollow carbon spheres with a smooth and raspberry-like shell by the extension of Stöber’s method.

Facile synthesis N-doped hollow carbon spheres from spherical solid silica

2018 ◽  
Vol 511 ◽  
pp. 203-208 ◽  
Author(s):  
K. Wenelska ◽  
A. Ottmann ◽  
D. Moszyński ◽  
P. Schneider ◽  
R. Klingeler ◽  
...  
Keyword(s):  
Carbon Spheres ◽  
Facile Synthesis ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

Facile synthesis of Ti4O7 on hollow carbon spheres with enhanced polysulfide binding for high-performance lithium–sulfur batteries

2019 ◽  
Vol 7 (17) ◽  
pp. 10494-10504 ◽  
Author(s):  
Fang Wang ◽  
Xian Ding ◽  
Ruyue Shi ◽  
Miaoran Li ◽  
Yimin Lei ◽  
...  
Keyword(s):  
High Performance ◽  
Reversible Capacity ◽  
Reduction Reaction ◽  
Carbon Spheres ◽  
Facile Synthesis ◽  
Lithium Sulfur Batteries ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres ◽  
Lithium Sulfur ◽  
Carbothermal Reduction Reaction

Ti4O7 nanoparticles grown on hollow carbon spheres through the carbothermal reduction reaction exhibit high sulfur loading, superior reversible capacity and favorable cycling stability.

Facile synthesis of novel bowl-like hollow carbon spheres by the combination of hydrothermal carbonization and soft templating

2017 ◽  
Vol 53 (20) ◽  
pp. 2922-2925 ◽  
Author(s):  
Zili Zhang ◽  
Mingli Qin ◽  
Baorui Jia ◽  
Hongzhou Zhang ◽  
Haoyang Wu ◽  
...  
Keyword(s):  
Hollow Spheres ◽  
Hydrothermal Carbonization ◽  
Template Method ◽  
Carbon Spheres ◽  
Facile Synthesis ◽  
Soft Templating ◽  
New Strategy ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

A new strategy to synthesize novel bowl-like hollow spheres by the combination of hydrothermal carbonization and an emulsion template method was presented.

In situ construction of hollow carbon spheres with N, Co, and Fe co-doping as electrochemical sensors for simultaneous determination of dihydroxybenzene isomers

Nanoscale ◽  
2019 ◽  
Vol 11 (18) ◽  
pp. 8950-8958 ◽  
Author(s):  
Hui Yang ◽  
Shunxing Li ◽  
Huiwu Yu ◽  
Fengying Zheng ◽  
Luxiu Lin ◽  
...  
Keyword(s):  
Active Sites ◽  
High Performance ◽  
Electrode Materials ◽  
Electrochemical Sensors ◽  
Carbon Spheres ◽  
Co Doping ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

Control of the active sites/centers plays an important role in the design of novel electrode materials with unusual properties and achievement of sensors with high performance.

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).

N-doped hierarchical porous hollow carbon spheres with multi-cavities for high performance Na-ion storage

2021 ◽  
Vol 506 ◽  
pp. 230170
Author(s):  
Lantao Liu ◽  
Xiangyu Sun ◽  
Yue Dong ◽  
Dengke Wang ◽  
Zheng Wang ◽  
...  
Keyword(s):  
High Performance ◽  
Carbon Spheres ◽  
Hierarchical Porous ◽  
Ion Storage ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

Recent progress on the design of hollow carbon spheres to host sulfur in room-temperature sodium–sulfur batteries

2020 ◽  
Vol 35 (6) ◽  
pp. 630-645
Author(s):  
Jia-ying Yang ◽  
Hao-jie Han ◽  
Hlib Repich ◽  
Ri-cheng Zhi ◽  
Chang-zhen Qu ◽  
...  
Keyword(s):  
Room Temperature ◽  
Recent Progress ◽  
Carbon Spheres ◽  
Hollow Carbon ◽  
Sodium Sulfur ◽  
Hollow Carbon Spheres
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