scholarly journals Three-Dimensional Ordered Porous Carbon for Energy Conversion and Storage Applications

2020 ◽  
Vol 8 ◽  
Author(s):  
Jinxiu Feng ◽  
Dong Zheng ◽  
Xinlong Gao ◽  
Wenbin Que ◽  
Wenhui Shi ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Porous Carbon ◽  
Three Dimensional ◽  
Energy Conversion And Storage ◽  
And Storage ◽  
Ordered Porous

Upgrading earth-abundant biomass into three-dimensional carbon materials for energy and environmental applications

2019 ◽  
Vol 7 (9) ◽  
pp. 4217-4229 ◽  
Author(s):  
Shaofeng Zhou ◽  
Lihua Zhou ◽  
Yaping Zhang ◽  
Jian Sun ◽  
Junlin Wen ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Carbon Materials ◽  
Three Dimensional ◽  
Environmental Applications ◽  
Energy Conversion And Storage ◽  
Earth Abundant ◽  
And Storage

Abundant biomass is well accepted as a carbon-rich, sustainable, and renewable precursor for three-dimensional carbon materials, offering us a plethora of possibilities for energy conversion and storage as well as environmental treatments.

Integrated Bioderived-Conducting Polymer Membrane Nanostructures for Energy Conversion and Storage

2012 ◽  
Author(s):  
Vishnu-Baba Sundaresan ◽  
Sergio Salinas
Keyword(s):  
Energy Conversion ◽  
Conducting Polymer ◽  
Redox Reactions ◽  
Three Dimensional ◽  
Polymer Membrane ◽  
System Level ◽  
Material System ◽  
Active Materials ◽  
Energy Conversion And Storage ◽  
And Storage

Conducting polymers are ionic active materials that can perform electro-chemo-mechanical work through redox reactions. The electro-chemo-mechanical coupling in these materials has been successfully applied to develop various application platforms (actuation systems, sensor elements and energy storage devices (super capacitors, battery electrodes)). Similarly, bioderived membranes are ionic active materials that have been demonstrated as actuators, sensors and energy harvesting devices. Bioderived membranes offer significant advantages over synthetic ionic active materials in energy conversion and the scientific community has put forward various system level concepts for application in engineering applications. The biological origins of these material systems and their subsequent mechanical, electrical and thermal properties have served as a key deterrent in applications. This article proposes a novel architecture that combines a conducting polymer and a bioderived membrane into an integrated material system in which the charge gradients generated from a biochemical reaction is stored and released in the conducting polymer through redox reactions. This paper discusses the fabrication and topographical characterization of the integrated bioderived-conducting polymer membrane nanostructures. The prototype comprises of an organized array of fluid-filled three-dimensional containers with an integrated membrane shell that performs energy conversion and storage owing to its multi-functional microstructure. The bioderived membrane is self-assembled into a hollow spherical container from synthetic membranes or bilayer lipid membranes with proteins and the conducting polymer membrane forms a wrapper around this container resulting in a three-dimensional assembly.

Three-dimensional porous SnO2@NC framework for excellent energy conversion and storage

2020 ◽  
Vol 46 (2) ◽  
pp. 1396-1402 ◽  
Author(s):  
Dongwei Wei ◽  
Feng Xu ◽  
Jing Xu ◽  
Jun Fang ◽  
See Wee Koh ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Three Dimensional ◽  
Energy Conversion And Storage ◽  
And Storage

scholarly journals Graphene-reinforced metal-organic frameworks derived cobalt sulfide/carbon nanocomposites as efficient multifunctional electrocatalysts

2021 ◽  
Author(s):  
Laicong Deng ◽  
Zhuxian Yang ◽  
Rong Li ◽  
Binling Chen ◽  
Quanli Jia ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Porous Carbon ◽  
Active Sites ◽  
Cobalt Sulfide ◽  
Electronic Microscopy ◽  
Simple Method ◽  
X Ray ◽  
Energy Conversion And Storage ◽  
And Storage ◽  
Co Doped

AbstractDeveloping cost-effective electrocatalysts for oxygen reduction reaction (ORR), oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is vital in energy conversion and storage applications. Herein, we report a simple method for the synthesis of graphene-reinforced CoS/C nanocomposites and the evaluation of their electrocatalytic performance for typical electrocatalytic reactions. Nanocomposites of CoS embedded in N, S co-doped porous carbon and graphene (CoS@C/Graphene) were generated via simultaneous sulfurization and carbonization of one-pot synthesized graphite oxide-ZIF-67 precursors. The obtained CoS@C/Graphene nanocomposites were characterized by X-ray diffraction, Raman spectroscopy, thermogravimetric analysis-mass spectroscopy, scanning electronic microscopy, transmission electronic microscopy, X-ray photoelectron spectroscopy and gas sorption. It is found that CoS nanoparticles homogenously dispersed in the in situ formed N, S co-doped porous carbon/graphene matrix. The CoS@C/10Graphene composite not only shows excellent electrocatalytic activity toward ORR with high onset potential of 0.89 V, four-electron pathway and superior durability of maintaining 98% of current after continuously running for around 5 h, but also exhibits good performance for OER and HER, due to the improved electrical conductivity, increased catalytic active sites and connectivity between the electrocatalytic active CoS and the carbon matrix. This work offers a new approach for the development of novel multifunctional nanocomposites for the next generation of energy conversion and storage applications.

Biomass willow catkin-derived Co3O4/N-doped hollow hierarchical porous carbon microtubes as an effective tri-functional electrocatalyst

2017 ◽  
Vol 5 (38) ◽  
pp. 20170-20179 ◽  
Author(s):  
Bin Wang ◽  
Li Xu ◽  
Gaopeng Liu ◽  
Pengfei Zhang ◽  
Wenshuai Zhu ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Oxygen Reduction ◽  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Porous Carbon ◽  
Electrochemical Reactions ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous ◽  
Energy Conversion And Storage ◽  
And Storage

Oxygen reduction (ORR), oxygen evolution (OER), and hydrogen evolution (HER) reactions are extremely important electrochemical reactions for electrochemical energy conversion and storage.

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