scholarly journals A flexible and conductive connection introduced by cross-linked CNTs between submicron Si@C particles for better performance LIB anode

2021 ◽  
Vol 3 (8) ◽  
pp. 2287-2294
Author(s):  
Qiqi Zhou ◽  
Junhao Liu ◽  
Xuzhong Gong ◽  
Zhi Wang
Keyword(s):  
Carbon Nanotubes ◽  
Charge Transfer ◽  
Volume Expansion

Interwoven carbon-nanotubes having tight linkages with Si@C contribute to ensure charge transfer and accommodate the volume expansion.

scholarly journals Charge Transfer Evidence between Carbon Nanotubes and Encapsulated Conjugated Oligomers

2011 ◽  
Vol 115 (24) ◽  
pp. 11898-11905 ◽  
Author(s):  
L. Alvarez ◽  
Y. Almadori ◽  
R. Arenal ◽  
R. Babaa ◽  
T. Michel ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Charge Transfer ◽  
Conjugated Oligomers

scholarly journals Charge transfer between lead halide perovskite nanocrystals and single-walled carbon nanotubes

2020 ◽  
Vol 2 (2) ◽  
pp. 808-813 ◽  
Author(s):  
Parul Bansal ◽  
Xiangtong Zhang ◽  
Hua Wang ◽  
Prasenjit Kar ◽  
William W. Yu
Keyword(s):  
Carbon Nanotubes ◽  
Charge Transfer ◽  
Single Walled Carbon Nanotubes ◽  
Perovskite Nanocrystals ◽  
Single Walled Carbon ◽  
Halide Perovskite ◽  
A Charge ◽  
Walled Carbon Nanotubes ◽  
Lead Halide ◽  
Transfer Study

A charge transfer study between lead halide-based perovskite nanocrystals and single-walled carbon nanotubes (PNC@CNT nanocomposite) was performed.

Enhanced water oxidation of CoP/CNTs via interfacial charge transfer induced by poly dimethyl diallyl ammonium chloride

2020 ◽  
Vol 44 (47) ◽  
pp. 20520-20524
Author(s):  
Yuxue Dai ◽  
Peng Gao ◽  
Xueying Wang ◽  
Pengfei Wang ◽  
Dandan Gao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Charge Transfer ◽  
Ammonium Chloride ◽  
Alkaline Solution ◽  
Water Oxidation ◽  
Functionalized Carbon Nanotubes ◽  
Dimethyl Ammonium Chloride ◽  
Dimethyl Ammonium ◽  
Interfacial Charge ◽  
Diallyl Dimethyl Ammonium Chloride

CoP layer was successfully deposited onto poly(diallyl dimethyl ammonium chloride) (PDDA) functionalized carbon nanotubes (CoP/PDDA@CNTs) as high effective OER electrocatalysts in alkaline solution.

scholarly journals Reversible Charge Transfer with Single‐Walled Carbon Nanotubes Upon Harvesting the Low Energy Part of the Solar Spectrum

Small ◽  
2020 ◽  
Vol 16 (8) ◽  
pp. 1906745 ◽  
Author(s):  
Arjun Menon ◽  
Yuri L. Slominskii ◽  
Jan Joseph ◽  
Oleg P. Dimitriev ◽  
Dirk M. Guldi
Keyword(s):  
Carbon Nanotubes ◽  
Charge Transfer ◽  
Solar Spectrum ◽  
Single Walled Carbon Nanotubes ◽  
Low Energy ◽  
Single Walled Carbon ◽  
Energy Part ◽  
Walled Carbon Nanotubes

Ultrathin nickel boride nanosheets anchored on functionalized carbon nanotubes as bifunctional electrocatalysts for overall water splitting

2019 ◽  
Vol 7 (2) ◽  
pp. 764-774 ◽  
Author(s):  
Xuncai Chen ◽  
Zixun Yu ◽  
Li Wei ◽  
Zheng Zhou ◽  
Shengli Zhai ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Charge Transfer ◽  
Active Surface ◽  
Charge Transfer Resistance ◽  
Active Surface Area ◽  
Transfer Resistance ◽  
Functionalized Carbon Nanotubes ◽  
Electrochemically Active ◽  
Metal Borides ◽  
Electrochemically Active Surface

Carbon nanotubes increase electrochemically active surface area and reduce charge transfer resistance of transition metal borides.

Boosting water oxidation on metal-free carbon nanotubes via directional interfacial charge-transfer induced by an adsorbed polyelectrolyte

2018 ◽  
Vol 11 (12) ◽  
pp. 3334-3341 ◽  
Author(s):  
Chunshao Mo ◽  
Junhua Jian ◽  
Jing Li ◽  
Zhengsong Fang ◽  
Zhe Zhao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Charge Transfer ◽  
Water Oxidation ◽  
Free Carbon ◽  
Interfacial Charge Transfer ◽  
Metal Free ◽  
Pure Carbon ◽  
Oxidation Performance ◽  
Interfacial Charge

Directional interfacial charge transfer doping was used to significantly boost the water oxidation performance of pure carbon nanotubes.

Electrochemical Tuning of Single-Wall Carbon Nanotube Mat and Investigations on Actuator Mechanism

2004 ◽  
Vol 855 ◽  
Author(s):  
S. Gupta ◽  
M. Hughes ◽  
J. Robertson
Keyword(s):  
Carbon Nanotubes ◽  
Charge Transfer ◽  
Carbon Nanotube ◽  
Bond Length ◽  
Upper Bound ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon ◽  
Electrochemical Tuning

ABSTRACTElectrochemical tuning of single-wall carbon nanotubes has been investigated using in situ Raman spectroscopy. We built a linear actuator from single-wall carbon nanotube mat and studied in several alkali metal (Li, Na, and K) and alkaline earth (Ca) halide solutions. The variation of bonding with electrochemical biasing was monitored using in situ Raman. This is since Raman can detect changes in C-C bond length: the radial breathing mode (RBM) at ∼190 cm−1 varies inversely with the nanotube diameter and the G band at ∼1590 cm−1 varies with the axial bond length. In addition, the intensities of both the modes vary significantly in a nonmonotonic manner pointing at the emptying/depleting or filling of the bonding and anti-bonding states - electrochemical charge injection. We discuss the variation of spectroscopic observables (intensity/frequency) of these modes providing valuable information on the charge transfer dynamics on the single-wall carbon nanotubes mat surface. We found the in-plane compressive strain (∼ -0.25%) and the charge transfer per carbon atom (fc ∼ -0.005) as an upper bound for the electrolytes used i.e. CaCl2. These results can be quantitatively understood in terms of the changes in the energy gaps between the one-dimensional van Hove singularities in the electron density of states arising possibly due to the alterations in the overlap integral of π bonds between the p orbitals of the adjacent carbon atoms. Moreover, the extent of variation of the absolute potential of the Fermi level or alternatively modification of band gap is estimated from modeling Raman intensity to be around 0.1 eV as an upper bound for CaCl2.

Charge Transfer Dynamics in Single-Wall Carbon Nanotubes Mat: In Situ Raman Spectroscopy

2003 ◽  
Vol 785 ◽  
Author(s):  
S. Gupta ◽  
M. Hughes ◽  
A.H. Windle ◽  
J. Robertson
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Charge Transfer ◽  
Bond Length ◽  
Mechanical Response ◽  
Radial Breathing Mode ◽  
Single Wall Carbon Nanotubes ◽  
In Situ Raman Spectroscopy ◽  
Single Wall Carbon

ABSTRACTCarbon nanotubes-based actuator has been investigated using in situ Raman spectroscopy in order to understand the actuation mechanism and to determine associated parameters. We built an actuator from a sheet of single-wall carbon nanotubes (SWNT mat) and studied in several alkali metal (Li, Na, and K) and alkaline earth (Ca) halide solutions. Since Raman can detect changes in C-C bond length: the radial breathing mode (RBM) at ∼190 cm-1 varies inversely with the nanotube diameter and the G band at ∼1590 cm-1 varies with the axial bond length, the variation of bonding was monitored with potential. In addition, the intensities of both the modes vary with either emptying/depleting or filling of the bonding and antibonding states due to electrochemical charge injection. We discuss the variation of intensity/frequency providing valuable information on the dynamics of charge transfer on the SWNT mat surface. We found the in-plane microscopic strain (∼ -0.25%) and the charge transfer per carbon atom (fc ∼ -0.005) as an upper bound for the electrolytes used. It is demonstrated that though the present analyses does comply with the proposition made earlier, but the quantitative estimates of the associated parameters are significantly lower if compared with those of reported values for carbon nanotubes. Moreover, the extent of variation (i.e. coupled electro-chemo-mechanical response) does depend upon the type of counter-ion used. The cyclic voltammetry (CV) is also described briefly.

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