One-pot Synthesis of 2D SnS2 Nanorods with High Energy Density and Long Term Stability for High-Performance Hybrid Supercapacitor

2021 ◽  
Vol 35 ◽  
pp. 102336
Author(s):  
Muhammad Sajjad ◽  
Yaqoob Khan ◽  
Wen Lu
Keyword(s):  
Energy Density ◽  
High Performance ◽  
High Energy ◽  
High Energy Density ◽  
Hybrid Supercapacitor ◽  
One Pot ◽  
Term Stability ◽  
Long Term Stability ◽  
One Pot Synthesis

Efficient Co-Harvesting of Solar Energy and Low-Grade Heat by Molecular Photoswitches for High Energy Density, Long-Term Stable Solar Thermal Battery

2019 ◽  
Author(s):  
Zhao-Yang Zhang ◽  
Tao LI
Keyword(s):  
Energy Density ◽  
Solar Energy ◽  
High Performance ◽  
High Energy ◽  
Solar Thermal ◽  
High Energy Density ◽  
Low Grade ◽  
Thermal Battery ◽  
Low Grade Heat

Solar energy and ambient heat are two inexhaustible energy sources for addressing the global challenge of energy and sustainability. Solar thermal battery based on molecular switches that can store solar energy and release it as heat has recently attracted great interest, but its development is severely limited by both low energy density and short storage stability. On the other hand, the efficient recovery and upgrading of low-grade heat, especially that of the ambient heat, has been a great challenge. Here we report that solar energy and ambient heat can be simultaneously harvested and stored, which is enabled by room-temperature photochemical crystal-to-liquid transitions of small-molecule photoswitches. The two forms of energy are released together to produce high-temperature heat during the reverse photochemical phase change. This strategy, combined with molecular design, provides high energy density of 320-370 J/g and long-term storage stability (half-life of about 3 months). On this basis, we fabricate high-performance, flexible film devices of solar thermal battery, which can be readily recharged at room temperature with good cycling ability, show fast rate of heat release, and produce high-temperature heat that is >20<sup> o</sup>C higher than the ambient temperature. Our work opens up a new avenue to harvest ambient heat, and demonstrate a feasible strategy to develop high-performance solar thermal battery.

Efficient Co-Harvesting of Solar Energy and Low-Grade Heat by Molecular Photoswitches for High Energy Density, Long-Term Stable Solar Thermal Battery

2019 ◽  
Author(s):  
Zhao-Yang Zhang ◽  
Tao LI
Keyword(s):  
Energy Density ◽  
Solar Energy ◽  
High Performance ◽  
High Energy ◽  
Solar Thermal ◽  
High Energy Density ◽  
Low Grade ◽  
Thermal Battery ◽  
Low Grade Heat

Solar energy and ambient heat are two inexhaustible energy sources for addressing the global challenge of energy and sustainability. Solar thermal battery based on molecular switches that can store solar energy and release it as heat has recently attracted great interest, but its development is severely limited by both low energy density and short storage stability. On the other hand, the efficient recovery and upgrading of low-grade heat, especially that of the ambient heat, has been a great challenge. Here we report that solar energy and ambient heat can be simultaneously harvested and stored, which is enabled by room-temperature photochemical crystal-to-liquid transitions of small-molecule photoswitches. The two forms of energy are released together to produce high-temperature heat during the reverse photochemical phase change. This strategy, combined with molecular design, provides high energy density of 320-370 J/g and long-term storage stability (half-life of about 3 months). On this basis, we fabricate high-performance, flexible film devices of solar thermal battery, which can be readily recharged at room temperature with good cycling ability, show fast rate of heat release, and produce high-temperature heat that is >20<sup> o</sup>C higher than the ambient temperature. Our work opens up a new avenue to harvest ambient heat, and demonstrate a feasible strategy to develop high-performance solar thermal battery.

scholarly journals Factors affecting the long-term stability of mesoporous nickel-based catalysts in combined steam and dry reforming of methane

2016 ◽  
Vol 6 (12) ◽  
pp. 4616-4631 ◽  
Author(s):  
K. Jabbour ◽  
N. El Hassan ◽  
A. Davidson ◽  
S. Casale ◽  
P. Massiani
Keyword(s):  
Dry Reforming ◽  
Coke Deposition ◽  
Dry Reforming Of Methane ◽  
One Pot ◽  
Factors Affecting ◽  
Term Stability ◽  
Long Term Stability ◽  
Highly Efficient ◽  
One Pot Synthesis

Direct “one-pot” synthesis is highly efficient to obtain performing mesoporous Ni–Al2O3catalysts able to resist deactivation by sintering and coke deposition during CH4reforming by CO2and H2O to produce “metgas”.

Bread-inspired foaming strategy to fabricate a wine lees-based porous carbon framework for high specific energy supercapacitors

2021 ◽  
Vol 5 (19) ◽  
pp. 4965-4972
Author(s):  
Hui Peng ◽  
Yipu Xu ◽  
Yaping Jiang ◽  
Xin Wang ◽  
Rui Zhao ◽  
...  
Keyword(s):  
Energy Density ◽  
Porous Carbon ◽  
Fermentation Process ◽  
High Energy ◽  
High Energy Density ◽  
Long Term Stability ◽  
Carbon Framework ◽  
One Step ◽  
High Specific Energy

Inspired by the fermentation process of bread, a novel wine lees-based porous carbon framework (WLCF) having high energy density and excellent long-term stability is prepared via one-step sodium bicarbonate foaming and activation strategy.

MOF-derived α-NiS nanorods on graphene as an electrode for high-energy-density supercapacitors

2018 ◽  
Vol 6 (9) ◽  
pp. 4003-4012 ◽  
Author(s):  
Chong Qu ◽  
Lei Zhang ◽  
Wei Meng ◽  
Zibin Liang ◽  
Bingjun Zhu ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
High Energy ◽  
Positive Electrode ◽  
High Energy Density ◽  
Hybrid Supercapacitor ◽  
First Time

α-NiS/rGO nanohybrids synthesized from water-refluxed Ni-MOF-74/rGO were applied as a high-performance hybrid supercapacitor positive electrode for the first time.

scholarly journals Chemical Coupled PEDOT:PSS/Si Electrode: Suppressed Electrolyte Consumption Enables Long-Term Stability

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Xuejiao Liu ◽  
Zhixin Xu ◽  
Asma Iqbal ◽  
Ming Chen ◽  
Nazakat Ali ◽  
...  
Keyword(s):  
Energy Density ◽  
Solid Electrolyte Interphase ◽  
Rate Capability ◽  
High Energy ◽  
High Energy Density ◽  
Volume Changes ◽  
Etching Depth ◽  
Long Term Stability ◽  
Depth Analysis

AbstractHuge volume changes of Si during lithiation/delithiation lead to regeneration of solid-electrolyte interphase (SEI) and consume electrolyte. In this article, γ-glycidoxypropyl trimethoxysilane (GOPS) was incorporated in Si/PEDOT:PSS electrodes to construct a flexible and conductive artificial SEI, effectively suppressing the consumption of electrolyte. The optimized electrode can maintain 1000 mAh g−1 for nearly 800 cycles under limited electrolyte compared with 40 cycles of the electrodes without GOPS. Also, the optimized electrode exhibits excellent rate capability. The use of GOPS greatly improves the interface compatibility between Si and PEDOT:PSS. XPS Ar+ etching depth analysis proved that the addition of GOPS is conducive to forming a more stable SEI. A full battery assembled with NCM 523 cathode delivers a high energy density of 520 Wh kg−1, offering good stability.

scholarly journals Facile one-pot synthesis of NiCo2Se4-rGO on Ni foam for high performance hybrid supercapacitors

RSC Advances ◽  
2019 ◽  
Vol 9 (65) ◽  
pp. 37939-37946 ◽  
Author(s):  
Bahareh Golrokh Amin ◽  
Jahangir Masud ◽  
Manashi Nath
Keyword(s):  
Power Density ◽  
High Performance ◽  
High Energy ◽  
Hybrid Supercapacitor ◽  
Ni Foam ◽  
One Pot ◽  
Hybrid Supercapacitors ◽  
One Pot Synthesis ◽  
Energy And Power Density

A hybrid supercapacitor comprising a NiCo2Se4-rGO composite has been fabricated on Ni foam and shows high energy and power density and superior flexibility.

Towards improved explosives with a high performance: N-(3,5-dinitro-1H-pyrazol-4-yl)-1H-tetrazol-5-amine and its salts

2017 ◽  
Vol 5 (4) ◽  
pp. 1769-1777 ◽  
Author(s):  
Man Zhang ◽  
Huiqi Gao ◽  
Chuan Li ◽  
Wei Fu ◽  
Liwei Tang ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
High Energy ◽  
High Energy Density ◽  
High Energy Density Materials ◽  
Energetic Salts

To reach the long-term, strongly desired goal of high energy density materials (HEDM), a novelN-bridged structure ofN-(3,5-dinitro-1H-pyrazol-4-yl)-1H-tetrazol-5-amine, and its selected nitrogen-rich energetic salts are designed and synthesized.

Urchin-like NiCo2O4 hollow microspheres and FeSe2 micro-snowflakes for flexible solid-state asymmetric supercapacitors

2017 ◽  
Vol 5 (11) ◽  
pp. 5568-5576 ◽  
Author(s):  
Chenchen Ji ◽  
Fuzhu Liu ◽  
Liang Xu ◽  
Shengchun Yang
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Cathode Material ◽  
Hollow Structure ◽  
High Energy ◽  
Hollow Microspheres ◽  
High Energy Density ◽  
Asymmetric Supercapacitors ◽  
Long Term Stability

FSASCs were designed using a NiCo2O4 cathode material with an urchin-like hollow structure and a FeSe2 anode with a hierarchical snowflake structure, which exhibit satisfactory performances with excellent flexibility, high energy density, and long-term stability.

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