Results 281 to 290 of about 15,153,604 (348)

Selective tailoring of covalent bonds on graphitized hollow carbon spheres towards controllable porous structure and wideband electromagnetic absorption

, 2020
Recently, the exploration of a new strategy to create pores on carbon frameworks has received great interest. Herein, the selectively tailoring of the covalent bonding method has been shown to be one of the effective methods to generate pores based on ...
Lieji Yang, Xiaodi Zhou, Zirui Jia, Hualiang Lv, Yutao Zhu, Juncen Liu, Zhihong Yang   +6 more
semanticscholar   +1 more source

Surface construction of nitrogen-doped chitosan-derived carbon nanosheets with hierarchically porous structure for enhanced sulfacetamide degradation via peroxymonosulfate activation: Maneuverable porosity and active sites

, 2020
Nitrogen-doped chitosan-derived carbon nanosheets with hierarchically porous structure were synthesized via a facile pyrolysis treatment of chitosan/urea/NaHCO3 mixture (denoted as CNU). The contents of reactive functionalities, graphitization degree and
Xiao Chen, Wen-Da Oh, Peng-hui Zhang, R. Webster, T. Lim   +4 more
semanticscholar   +1 more source

Cellulose acetate monolith with hierarchical micro/nano-porous structure showing superior hydrophobicity for oil/water separation.

Carbohydrate Polymers, 2020
Eco-friendly cellulose acetate (CA) monolith with novel hierarchical micro/nano-porous structure was successfully fabricated via a simple thermally impacted nonsolvent induced phase separation (TINIPS) method.
Xin Zhang, Bo Wang, Xiuming Qin, Shihang Ye, Yu-tao Shi, Yuezhan Feng, W. Han, Chuntai Liu, Changyu Shen   +8 more
semanticscholar   +1 more source

Enhanced photoreduction CO2 activity on g-C3N4: By synergistic effect of nitrogen defective-enriched and porous structure, and mechanism insights

, 2020
A novel porous structure g-C3N4 with nitrogen defect photocatalysts (DCN-P) was successfully prepared by in-situ doping strategy and freeze-dried method, it exhibits enhanced photo-reduction CO2 performance with satisfactory CO, CH4 productivity about 19.
Wei Ma, Na Wang, Y. Guo, Liuqing Yang, Manfei Lv, Xu Tang, Songtian Li   +6 more
semanticscholar   +1 more source

Effect of particle size, porous structure and content of rice husk ash on the hydration process and compressive strength evolution of concrete

, 2020
Compressive strength evolution of high strength concrete with rice husk ash (RHA) was evaluated as a function of RHA particle size, porous structure and replacement content.
Amanda Pereira Vieira, R. D. T. Filho, L. M. Tavares, G. Cordeiro   +3 more
semanticscholar   +1 more source

Structure of Porous Adsorbents

Angewandte Chemie International Edition in English, 1972
AbstractPorous solids are gaining in importance as adsorbents and catalysts both for scientific investigations and for industrial applications. Adsorbents having predetermined pore structure can be prepared by specific synthesis. This pore structure can be described in detail and comprehensively by specific parameters, which can be determined by gas ...
openaire   +1 more source

Self-healing solid slippery surface with porous structure and enhanced corrosion resistance

, 2020
The corrosion issue of metals is common and has significant impact on social development. In recent decades, the novel slippery surface (lubricant infused surface) inspired by “Nepenthes pitcher plant” has attracted extensive attentions for corrosion ...
Tengfei Xiang, Jian Liu, Quanwei Liu, Feifei Wei, Z. Lv, Yang Yang, Liping Shi, Cheng Li, Depeng Chen, Gui-Zhen Xu   +9 more
semanticscholar   +1 more source

Three-dimensional nitrogen and phosphorus co-doped carbon quantum dots/reduced graphene oxide composite aerogels with a hierarchical porous structure as superior electrode materials for supercapacitors

Journal of Materials Chemistry A, 2019
A novel 3D N, P-CQDs/rGO composite aerogel with a hierarchical porous structure is prepared, and excellent supercapacitive properties are achieved.
Jing-ying Li, Xiaoru Yun, Zhongliang Hu, Liujiang Xi, Na Li, Heng Tang, Pengcheng Lu, Yirong Zhu   +7 more
semanticscholar   +1 more source

Effects of ordered hierarchically porous structure on methane reforming performance in solar foam reactor

, 2020
Hierarchically porous structures are a new type of biomimetic structures that have important applications in several fields. In this study, we aimed to put forward and introduce a new type ordered hierarchical porous structure in the design of solar ...
Xuhan Shi, Y. Shuai, Fuqiang Wang, Chuan-Xin Zhang, Ziming Cheng, Xue Chen   +5 more
semanticscholar   +1 more source

Controllable Growth of Gradient Porous Structures

Biomacromolecules, 2009
Cocontinuous phase structures of immiscible polymers can be developed under appropriate melt-blending conditions. Because of the presence of interfacial tension, such cocontinuous structures start to coarsen when heated to a temperature higher than the melting/softening temperature of both phases.
Donggang, Yao, Wei, Zhang, Jack G, Zhou
openaire   +2 more sources