Results 251 to 260 of about 129,634 (313)

Facile synthesis of hierarchical porous VOx@carbon composites for supercapacitors

Journal of Colloid and Interface Science, 2014
Hierarchical or micro-nano structured porous VOx@carbon composites were synthesized by a one-step method using phenolic resin as the carbon precursor and ammonium metavanadate as the source of vanadium oxides. The effects of the vanadium source loading on the microstructure and electrochemical properties of the composites were investigated.
Chunxia, Zhao, Jinqiao, Cao, Yunxia, Yang, Wen, Chen, Junshen, Li   +4 more
openaire   +2 more sources

Rice husk-based hierarchical porous carbon for high performance supercapacitors: The structure-performance relationship

, 2020
Rice husk-based hierarchical porous carbon (RHPC) has great promising applications in supercapacitors. Herein we systematically examined the formation mechanism of hierarchical porous structure of RHPC, tried to work out the intrinsic relationship of ...
Zhimin Chen, Xiaofeng Wang, Beichen Xue, Wei Li, Zhiyao Ding, Xiaomin Yang, J. Qiu, Zichen Wang   +7 more
semanticscholar   +1 more source

Hierarchically Porous Carbons Derived from Nonporous Coordination Polymers

ACS Applied Materials & Interfaces, 2020
Hierarchically porous carbons (HPCs) with multimodal pore systems exhibit great technological potentials, especially in the fields of heterogeneous catalysis, energy storage, and conversion. Here, we establish a simple and general approach to HPCs by carbonization of nonporous coordination polymers that are produced by mixing metal salts with polytopic
Lei Tong, Le-Le Zhang, Yu-Cheng Wang, Li-Yang Wan, Qiang-Qiang Yan, Cheng Hua, Chen-Jia Jiao, Zhi-You Zhou, Yan-Wei Ding, Bo Liu, Hai-Wei Liang   +10 more
openaire   +2 more sources

Hierarchical porous carbon derived from jujube fruits as sustainable and ultrahigh capacitance material for advanced supercapacitors.

Journal of Colloid and Interface Science, 2020
Herein, we propose a new highly porous natural carbon material from renewable and inexpensive jujube fruits as a carbon source applied in supercapacitors.
Viengkham Yang, Raja Arumugam Senthil, Junqing Pan, T. Rajesh Kumar, Yanzhi Sun, Xiaoguang Liu   +5 more
semanticscholar   +1 more source

Facile fabrication and characterization of hierarchically porous calcium carbonate microspheres

Chemical Communications, 2004
Higher-order porous calcite microspheres exhibiting high specific surface areas, unusual morphologies and textures were fabricated by a simple precipitation reaction of CaCO3 in the presence of PSMA as a crystal modifier.
Jiaguo, Yu, Jimmy C, Yu, Lizhi, Zhang, Xinchen, Wang, Ling, Wu   +4 more
openaire   +2 more sources

Hierarchical porous carbon beads for selective CO2 capture

Journal of CO2 Utilization, 2021
Abstract Excessive CO2 emissions from increased energy consumption are causing an environmental disaster that threatens humanity. Herein, we report the development of hierarchical porous carbon beads with interconnected micro- and mesopores for selective CO2 capture.
SuYeong Jung, Jae-Rang Lee, Yooseob Won, Dong-Ho Lee, Young Cheol Park, Youn-Sang Bae, Hyunuk Kim   +6 more
openaire   +1 more source

Fabrication of Hierarchical Porous Carbon Nanoflakes for High-Performance Supercapacitors

ACS Applied Materials & Interfaces, 2017
In the current work, the carbon nanoflakes (CNs-Fe/KOH) and porous carbon (PC-Ni/KOH) have been produced by using Fe(NO3)3/KOH and Ni(NO3)2/KOH as the cographitization/activation catalysts to treat the natural plane tree fluff, respectively. The as-prepared carbon materials show different morphologies when treated with different metal ions.
Yamin Yao, Yunqiang Zhang, Li Li, Shulan Wang, Shixue Dou, Xuan Liu   +5 more
openaire   +3 more sources

Hierarchical porous carbon derived from Gardenia jasminoides Ellis flowers for high performance supercapacitor

Journal of Energy Storage, 2020
Low cost and high performance electrode materials are essential for the development of sustainable energy conversion and storage systems. Herein, we report on the preparation of hierarchical porous carbon for high performance supercapacitor by using the ...
Can Qin, Shun Wang, Zhipeng Wang, K. Ji, Shunjie Wang, Xueying Zeng, Xingmao Jiang, Gang Liu   +7 more
semanticscholar   +1 more source

Hierarchically Porous Calcium Carbonate Scaffolds for Bone Tissue Engineering

ACS Biomaterials Science & Engineering, 2017
Hierarchically porous CaCO3 scaffolds comprised of micro- (diameter = 2.0 ± 0.3 μm) and nano-sized (diameter = 50.4 ± 14.4 nm) pores were fabricated on silicon substrates using a supercritical CO2-based process. Differentiated human THP-1 monocytes exposed to the CaCO3 scaffolds produced negligible levels of the inflammatory cytokine tumor necrosis ...
Abiy D. Woldetsadik, Sudhir K. Sharma, Sachin Khapli, Ramesh Jagannathan, Mazin Magzoub   +4 more
openaire   +2 more sources

Fabrication of high performance structural N-doped hierarchical porous carbon for supercapacitors

, 2020
In this paper, a method to fabricate structural N-doped hierarchical porous carbon is proposed. KOH and melamine are found to have synergistically impact on the pore-creating and nitrogen-doping process.
Jinxiao Li, Kuihua Han, Dong Wang, Zhaocai Teng, Yang Cao, Jianhui Qi, Ming Li, Meimei Wang   +7 more
semanticscholar   +1 more source