Achieving F-Doped Porous Hollow Carbon Nanospheres with Ultrahigh Pore Volume via Gas-Solid Interface Reaction

2021 ◽  
Author(s):  
Jinlong Hu ◽  
Lingzhi Zhang
Keyword(s):  
Pore Volume ◽  
Interface Reaction ◽  
Porous Structures ◽  
Carbon Nanospheres ◽  
Solid Interface ◽  
Hierarchical Porous ◽  
Hollow Carbon

Finding a tunable and facile method to make functional porous hollow carbons with ultrahigh-pore-volume hierarchical porous structures and well-designed functionalities has been challenging. Herein, we present a gas-solid interface reaction...

Dual active nitrogen doped hierarchical porous hollow carbon nanospheres as an oxygen reduction electrocatalyst for zinc–air batteries

Nanoscale ◽  
2017 ◽  
Vol 9 (35) ◽  
pp. 13257-13263 ◽  
Author(s):  
Jiawei Zhu ◽  
Huang Zhou ◽  
Chengtian Zhang ◽  
Jian Zhang ◽  
Shichun Mu
Keyword(s):  
Oxygen Reduction ◽  
Carbon Nanospheres ◽  
Active Nitrogen ◽  
Energy Devices ◽  
Nitrogen Doped ◽  
Hierarchical Porous ◽  
Hollow Carbon ◽  
Zinc Air Batteries ◽  
Electrochemical Energy

Advanced dual active N-doped hollow carbon nanospheres possess superior ORR performance and can be applied in practical electrochemical energy devices.

scholarly journals Hyper-crosslinked polymers with controlled multiscale porosity for effective removal of benzene from cigarette smoke

e-Polymers ◽  
2021 ◽  
Vol 22 (1) ◽  
pp. 19-29
Author(s):  
Xiaochen Xia ◽  
Peijian Sun ◽  
Xuehui Sun ◽  
Yipeng Wang ◽  
Song Yang ◽  
...  
Keyword(s):  
Cigarette Smoke ◽  
Pore Volume ◽  
Porous Structures ◽  
Considerable Decrease ◽  
Crosslinked Polymers ◽  
Aromatic Molecules ◽  
Aromatic Stacking ◽  
Ring Number ◽  
Effective Removal ◽  
Hierarchical Porous

Abstract A series of hyper-crosslinked polymers (HCPs) with connected hierarchical porous structures were synthesized from phenyl-based precursors of benzene (BEN), benzyl alcohol, aniline, biphenyl, and 1,3,5-triphenylbenzene (TPB) via the knitting method. The porous structures of the HCPs were greatly influenced by substituent groups and BEN ring number in the precursors. HCPs prepared from TPB had the largest surface area and pore volume with multiscale porosity. The porous structure of the HCPs could also be adjusted by the crosslinker amount. Insufficient crosslinking led to incomplete pore architecture, while excessive crosslinking resulted in a considerable decrease in the pore volume. With these HCPs as adsorbents, the BEN yield in the cigarette smoke could be largely reduced due to the connected multiscale porosity and π–π aromatic stacking interaction that facilitated the smoke aerosol passing and the small aromatic molecules absorbing, showing great potential of these HCPs as adsorbents for effective removal of BEN from cigarette smoke.

Controlled fabrication of orchid-like nitrogen-doped hierarchical porous carbon and hollow carbon nanospheres

2020 ◽  
Vol 55 (34) ◽  
pp. 16143-16157
Author(s):  
Lingling Xu ◽  
Yajuan Zhao ◽  
Changhao Zhao ◽  
Tao Hu ◽  
Jing Wang ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Hierarchical Porous Carbon ◽  
Carbon Nanospheres ◽  
Nitrogen Doped ◽  
Hierarchical Porous ◽  
Hollow Carbon

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

Design of aerogels, cryogels and xerogels of cellulose with hierarchical porous structures

2016 ◽  
Vol 92 ◽  
pp. 345-355 ◽  
Author(s):  
Kathirvel Ganesan ◽  
Anne Dennstedt ◽  
Adam Barowski ◽  
Lorenz Ratke
Keyword(s):  
Porous Structures ◽  
Hierarchical Porous

scholarly journals Hierarchical Porous, N-Containing Carbon Supports for High Loading Sulfur Cathodes

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 408
Author(s):  
Jae-Woo Park ◽  
Hyun Jin Hwang ◽  
Hui-Ju Kang ◽  
Gazi A. K. M. Rafiqul Bari ◽  
Tae-Gyu Lee ◽  
...  
Keyword(s):  
High Energy ◽  
High Energy Density ◽  
High Loading ◽  
Carbon Supports ◽  
Structure Directing Agent ◽  
Shuttle Effect ◽  
Main Challenge ◽  
Hierarchical Porous ◽  
Hollow Carbon ◽  
A Minor

The lithium-polysulfide (LiPS) dissolution from the cathode to the organic electrolyte is the main challenge for high-energy-density lithium-sulfur batteries (LSBs). Herein, we present a multi-functional porous carbon, melamine cyanurate (MCA)-glucose-derived carbon (MGC), with superior porosity, electrical conductivity, and polysulfide affinity as an efficient sulfur support to mitigate the shuttle effect. MGC is prepared via a reactive templating approach, wherein the organic MCA crystals are utilized as the pore-/micro-structure-directing agent and nitrogen source. The homogeneous coating of spherical MCA crystal particles with glucose followed by carbonization at 600 °C leads to the formation of hierarchical porous hollow carbon spheres with abundant pyridinic N-functional groups without losing their microstructural ordering. Moreover, MGC enables facile penetration and intensive anchoring of LiPS, especially under high loading sulfur conditions. Consequently, the MGC cathode exhibited a high areal capacity of 5.79 mAh cm−2 at 1 mA cm−2 and high loading sulfur of 6.0 mg cm−2 with a minor capacity decay rate of 0.18% per cycle for 100 cycles.

Sign in / Sign up

Export Citation Format

Share Document