Hierarchically Porous Carbon/α‐Fe@Fe 3 C Absorbers Derived from Luffa Sponge with Efficient Microwave Absorption

2020 ◽  
Vol 5 (47) ◽  
pp. 15075-15083
Author(s):  
Qi Zheng ◽  
Meijie Yu ◽  
Wen Wang ◽  
Siyu Liu ◽  
Xuechen Liang ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Porous Carbon ◽  
Hierarchically Porous ◽  
Luffa Sponge

scholarly journals Natural iron embedded hierarchically porous carbon with thin–thickness and high-efficiency microwave absorption properties

RSC Advances ◽  
2020 ◽  
Vol 10 (64) ◽  
pp. 38989-38999
Author(s):  
Can Zhang ◽  
Kuihu Zhao ◽  
Xueai Li ◽  
Wenqi Dong ◽  
Sufeng Wang ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Porous Carbon ◽  
High Efficiency ◽  
Reductive Activation ◽  
Absorption Properties ◽  
Microwave Absorption Properties ◽  
Hierarchically Porous ◽  
Natural Iron ◽  
First Time

Natural iron embedded HPCs are prepared using “reductive activation” with KOH for the first time, and exhibit excellent microwave absorption.

Chiffon cake-derived hierarchically porous carbon with efficient microwave absorption properties

2019 ◽  
Vol 30 (21) ◽  
pp. 19173-19181 ◽  
Author(s):  
Yuliang Jiang ◽  
Xueyan Fu ◽  
Zidong Zhang ◽  
Guohua Fan ◽  
Yao Liu ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Porous Carbon ◽  
Absorption Properties ◽  
Microwave Absorption Properties ◽  
Hierarchically Porous

One-step fabrication of Pd-embedded hierarchically porous carbon micro-spheres for formaldehyde removal under mild conditions

2021 ◽  
Author(s):  
Zhigang Ren ◽  
peng zhao ◽  
Ye Zhang ◽  
Yang Yu ◽  
xiaoxuan lv ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Carbon Microspheres ◽  
Carbon Spheres ◽  
Pickering Emulsions ◽  
Hierarchically Porous ◽  
Mild Conditions ◽  
Formaldehyde Removal ◽  
One Step

Micron-sized carbon spheres synthesized via pickering emulsions has attracted much attention in recent two years. In present paper, we prepared palladium (Pd) and nitrogen co-embedded carbon microspheres for formaldehyde (HCHO)...

scholarly journals Highly efficient evaporative cooling by all-day water evaporation using hierarchically porous biomass

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jihun Choi ◽  
Hansol Lee ◽  
Bokyeong Sohn ◽  
Minjae Song ◽  
Sangmin Jeon
Keyword(s):  
Porous Structure ◽  
Fiber Length ◽  
Evaporation Rate ◽  
Water Evaporation ◽  
Thickness Direction ◽  
Hierarchically Porous ◽  
Hierarchically Porous Structure ◽  
Length Direction ◽  
Luffa Sponge ◽  
Fiber Thickness

AbstractWe developed a 3D solar steam generator with the highest evaporation rate reported so far using a carbonized luffa sponge (CLS). The luffa sponge consisted of entangled fibers with a hierarchically porous structure; macropores between fibers, micro-sized pores in the fiber-thickness direction, and microchannels in the fiber-length direction. This structure remained after carbonization and played an important role in water transport. When the CLS was placed in the water, the microchannels in the fiber-length direction transported water to the top surface of the CLS by capillary action, and the micro-sized pores in the fiber-thickness direction delivered water to the entire fiber surface. The water evaporation rate under 1-sun illumination was 3.7 kg/m2/h, which increased to 14.5 kg/m2/h under 2 m/s wind that corresponded to the highest evaporation rate ever reported under the same condition. The high evaporation performance of the CLS was attributed to its hierarchically porous structure. In addition, it was found that the air temperature dropped by 3.6 °C when the wind passed through the CLS because of the absorption of the latent heat of vaporization. The heat absorbed by the CLS during water evaporation was calculated to be 9.7 kW/m2 under 1-sun illumination and 2 m/s wind, which was 10 times higher than the solar energy irradiated on the same area (1 kW/m2).

scholarly journals Facile synthesis of hierarchically porous carbon for supercapacitor derived from water-soluble pitch

2021 ◽  
Vol 631 ◽  
pp. 012101
Author(s):  
Jinliang Zhang ◽  
Junqing Liu ◽  
Danmiao Kang ◽  
Zhijiang Su ◽  
Wenbin Liang ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Water Soluble ◽  
Facile Synthesis ◽  
Hierarchically Porous

A novel eutectic solvent precursor for efficiently preparing N-doped hierarchically porous carbon nanosheets with unique surface functional groups and micro-pores towards dual-carbon lithium-ion capacitors

2021 ◽  
Author(s):  
Kaixiang Zou ◽  
Yuanfu Deng ◽  
Weijing Wu ◽  
Shiwei Zhang ◽  
Guohua Chen
Keyword(s):  
Functional Groups ◽  
Porous Carbon ◽  
High Performance ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Surface Functional Groups ◽  
Carbon Nanosheets ◽  
Hierarchically Porous ◽  
Li Ion ◽  
Unique Surface

High performance carbon-based materials are ideal electrode materials for Li-ion capacitors (LICs), but there are still many challenges such as the complicated preparation preocesses, high cost and low yield. Also,...

Sign in / Sign up

Export Citation Format

Share Document