Adsorption dominant sodium storage in three-dimensional coal-based graphite microcrystal/graphene composites

2019 ◽  
Vol 7 (13) ◽  
pp. 7565-7572 ◽  
Author(s):  
Mengmeng Kang ◽  
Hanqing Zhao ◽  
Jianqi Ye ◽  
Wei Song ◽  
Hanting Shen ◽  
...  
Keyword(s):  
Functional Groups ◽  
Three Dimensional ◽  
Oxygen Functional Groups ◽  
Sodium Storage

Various oxygen functional groups could provide plentiful reactive sites, which contribute significantly to sodium storage.

Defect formation-induced tunable evolution of oxygen functional groups for sodium storage in porous graphene

2020 ◽  
Vol 56 (7) ◽  
pp. 1089-1092 ◽  
Author(s):  
Jianqi Ye ◽  
Hanqing Zhao ◽  
Mengmeng Kang ◽  
Wei Song ◽  
Qingqiang Kong ◽  
...  
Keyword(s):  
Functional Groups ◽  
Defect Formation ◽  
Porous Graphene ◽  
Oxygen Functional Groups ◽  
Evolution Of Oxygen ◽  
Sodium Storage

Defects were engineered in order to induce the evolution of oxygen functional groups, and the ring defects were responsible for the distribution of groups with CO bonds.

HYDROXYAPATITE, ALGINATE, AND CHITOSAN FOR BONE SCAFFOLDS: SPECTROSCOPY STUDY

2016 ◽  
Vol 19 (2) ◽  
pp. 93-100
Author(s):  
Lalita El Milla
Keyword(s):  
Tissue Engineering ◽  
Bone Tissue Engineering ◽  
Bone Tissue ◽  
Functional Groups ◽  
Bone Growth ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Tissue Engineering Scaffolds ◽  
Hydroxyapatite Powder ◽  
Materials Used

Scaffolds is three dimensional structure that serves as a framework for bone growth. Natural materials are often used in synthesis of bone tissue engineering scaffolds with respect to compliance with the content of the human body. Among the materials used to make scafffold was hydroxyapatite, alginate and chitosan. Hydroxyapatite powder obtained by mixing phosphoric acid and calcium hydroxide, alginate powders extracted from brown algae and chitosan powder acetylated from crab. The purpose of this study was to examine the functional groups of hydroxyapatite, alginate and chitosan. The method used in this study was laboratory experimental using Fourier Transform Infrared (FTIR) spectroscopy for hydroxyapatite, alginate and chitosan powders. The results indicated the presence of functional groups PO43-, O-H and CO32- in hydroxyapatite. In alginate there were O-H, C=O, COOH and C-O-C functional groups, whereas in chitosan there were O-H, N-H, C=O, C-N, and C-O-C. It was concluded that the third material containing functional groups as found in humans that correspond to the scaffolds material in bone tissue engineering.

A Self‐Healing Volume Variation Three‐Dimensional Continuous Bulk Porous Bismuth for Ultrafast Sodium Storage

2021 ◽  
pp. 2011264
Author(s):  
Xiaolong Cheng ◽  
Ruiwen Shao ◽  
Dongjun Li ◽  
Hai Yang ◽  
Ying Wu ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Self Healing ◽  
Volume Variation ◽  
Sodium Storage
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