scholarly journals Electronic structure modulation strategies in high-performance thermoelectrics

APL Materials ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 040910 ◽  
Author(s):  
Moinak Dutta ◽  
Tanmoy Ghosh ◽  
Kanishka Biswas
Keyword(s):  
Electronic Structure ◽  
High Performance ◽  
Structure Modulation

Electronic structure modulation of metal-free graphdiyne for acidic oxygen evolution reaction

2D Materials ◽  
2021 ◽  
Author(s):  
Zhiqiang Zheng ◽  
Yurui Xue ◽  
Yaqi Gao ◽  
Zhongqiang Wang ◽  
Shuya Zhao ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Carbon Materials ◽  
Metal Free ◽  
Catalytic Activities ◽  
Structure Modulation ◽  
Flexible Metal ◽  
Kinetics Of

Abstract Developing high-performance metal-free electrocatalysts for acidic oxygen evolution reaction (AOER) is highly desirable but remains great challenge. Here we report a rationally substituting sp-C strategy for the synthesis of methyl- and hydrogen-substituted graphdiyne (MGDY, HGDY) nanowires arrays as 3D porous flexible metal-free electrodes for AOER. Methyl group in MGDY with stronger electron-pushing effect makes electrons around the acetylenic carbon atoms more delocalized, resulting in more uneven distributed surface charge, and higher intrinsic catalytic activities for AOER than HGDY, with the smaller overpotential of 406 mV at 10 mA cm−2 than HGDY and previously reported metal-free electrocatalysts. Our results reveal that the modulation of the electronic structure of GDY by selectively substituting sp-C allows for facilitating charge transfer kinetics, improving adsorption of reaction intermediate, and thereby accelerating the sluggish kinetics of AOER. This work provides us an ideal opportunity for studying the exact HER/OER mechanisms of metal-free carbon materials.

Dehydration-triggered electronic structure modulation enables high-performance quasi-solid-state Li-ion capacitors

2020 ◽  
Vol 392 ◽  
pp. 123795 ◽  
Author(s):  
Fu-Da Yu ◽  
Lan-Fang Que ◽  
Cheng-Yan Xu ◽  
Liang Deng ◽  
Yun-Shan Jiang ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Solid State ◽  
High Performance ◽  
Structure Modulation ◽  
Li Ion

Electronic Structure Modulation of 2D Colloidal CdSe Nanoplatelets by Au25 Clusters for High-Performance Photodetectors

2020 ◽  
Vol 124 (36) ◽  
pp. 19793-19801 ◽  
Author(s):  
Anusri Medda ◽  
Avisek Dutta ◽  
Dipankar Bain ◽  
Manish Kumar Mohanta ◽  
Abir De Sarkar ◽  
...  
Keyword(s):  
Electronic Structure ◽  
High Performance ◽  
Structure Modulation

Enhancing Pr1-xBaxMnO3-δ perovskite charge-transport by electronic structure modulation

2021 ◽  
Author(s):  
H. A. Martinez-Rodriguez ◽  
J. F. Jurado ◽  
G. Herrera-Pérez ◽  
F. Espinoza-Magana ◽  
A. Reyes-Rojas
Keyword(s):  
Electronic Structure ◽  
Charge Transport ◽  
Structure Modulation

Tuning the electronic structure of NiMoO4 by coupling with SnO2 for high-performance hybrid supercapacitors

2021 ◽  
Vol 409 ◽  
pp. 128297
Author(s):  
Ye Zeng ◽  
Jizhang Liao ◽  
Binbin Wei ◽  
Zheng Huang ◽  
Weijie Zhu ◽  
...  
Keyword(s):  
Electronic Structure ◽  
High Performance ◽  
Hybrid Supercapacitors
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