A co-sol-emulsion-gel synthesis of tunable and uniform hollow carbon nanospheres with interconnected mesoporous shells

Nanoscale ◽  
2016 ◽  
Vol 8 (1) ◽  
pp. 451-457 ◽  
Author(s):  
Jianhua Hou ◽  
Tai Cao ◽  
Faryal Idrees ◽  
Chuanbao Cao
Keyword(s):  
Carbon Spheres ◽  
Carbon Nanospheres ◽  
Gel Method ◽  
Emulsion Gel ◽  
Mesoporous Shell ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

Monodispersed tunable nanoscale hollow carbon spheres with an open interconnected mesoporous shell have been synthesized by a co-sol-emulsion-gel method.

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.

Semi-sacrificial template synthesis of single-atom Ni sites supported on hollow carbon nanospheres for efficient and stable electrochemical CO2 reduction

2020 ◽  
Vol 7 (8) ◽  
pp. 1719-1725 ◽  
Author(s):  
Cheng-Zong Yuan ◽  
Li-Yuan Zhan ◽  
Shou-Jie Liu ◽  
Feng Chen ◽  
Hongjun Lin ◽  
...  
Keyword(s):  
Co2 Reduction ◽  
Single Atom ◽  
Carbon Spheres ◽  
Carbon Nanospheres ◽  
Sacrificial Template ◽  
Nitrogen Doped ◽  
Electrochemical Co2 Reduction ◽  
Ni Species ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

Atomically dispersed Ni species on nitrogen-doped hollow carbon spheres (SA-Ni/N-CS) were synthesized via a semi-sacrificial template assisted strategy for an efficient and stable CO2RR.

Ag–Au nanoparticles encapsulated inside porous hollow carbon nanospheres: a molecular dynamics study

2018 ◽  
Vol 42 (16) ◽  
pp. 13619-13628 ◽  
Author(s):  
Hamed Akbarzadeh ◽  
Mohsen Abbaspour ◽  
Esmat Mehrjouei ◽  
Samira Ramezanzadeh
Keyword(s):  
Molecular Dynamics ◽  
Au Nanoparticles ◽  
Core Shell ◽  
Hollow Core ◽  
Carbon Spheres ◽  
Carbon Nanospheres ◽  
Au Nanoclusters ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

We have simulated bare Ag/Au nanoclusters and Ag/Au nanoclusters encapsulated into hollow carbon spheres (AgAu@C) with various structures (core–shell, hollow core–shell, rattle core–shell, and alloy nanoclusters) from 300 to 700 K.

scholarly journals Small Naked Pt Nanoparticles Confined in Mesoporous Shell of Hollow Carbon Spheres for High-Performance Nonenzymatic Sensing of H2O2 and Glucose

ACS Omega ◽  
2018 ◽  
Vol 3 (1) ◽  
pp. 96-105 ◽  
Author(s):  
Chunmei Zhang ◽  
Ruizhong Zhang ◽  
Xiaohui Gao ◽  
Chunfeng Cheng ◽  
Lin Hou ◽  
...  
Keyword(s):  
High Performance ◽  
Pt Nanoparticles ◽  
Carbon Spheres ◽  
Nonenzymatic Sensing ◽  
Mesoporous Shell ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

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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