Electricity Generation from Capillary-Driven Ionic Solution Flow in a Three-Dimensional Graphene Membrane

2019 ◽  
Vol 11 (5) ◽  
pp. 4922-4929 ◽  
Author(s):  
Changzheng Li ◽  
Zhiqun Tian ◽  
Lizhe Liang ◽  
Shibin Yin ◽  
Pei Kang Shen
Keyword(s):  
Electricity Generation ◽  
Three Dimensional ◽  
Solution Flow ◽  
Ionic Solution ◽  
Graphene Membrane

Electricity Generation from Ionic Solution Flowing through Packed Three-Dimensional Graphene Powders

2021 ◽  
Author(s):  
Changzheng Li ◽  
Dafeng Yang ◽  
Syed Waqar Hasan ◽  
Xiantao Zhang ◽  
Zhiqun Tian ◽  
...  
Keyword(s):  
Electricity Generation ◽  
Three Dimensional ◽  
Ionic Solution

On the 3D Structure of Elasticity-Induced Unstable Flow in the Curved Microchannel by Using Confocal Micro-PIV and Polarized Camera

2015 ◽  
Author(s):  
Xiao-Bin Li ◽  
Masamichi Oishi ◽  
Marie Oshima ◽  
Feng-Chen Li ◽  
Song-Jing Li
Keyword(s):  
Flow Rate ◽  
High Speed ◽  
3D Structure ◽  
Three Dimensional ◽  
Working Fluid ◽  
Wall Region ◽  
Unstable Flow ◽  
Solution Flow ◽  
Micro Particle Image Velocimetry ◽  
Micro Piv

In this paper, the three-dimensional (3D) structures of a micellar solution flow in the curvilinear microchannel have been investigated by means of confocal micro particle image velocimetry (PIV). The working fluid is aqueous solution of CTAC/NaSal (cetyltrimethylammonium / Sodium Salysilate). As the flow rate increases, the flow gradually gets into the irregular motion. It is found that the inside flow seems not completely chaotic, but in a manner of oscillation. To be specific, the flow nonlinearity grows as the flow rate increases, the inside flow shows different structures near the wall region and in the bulk due to the elongation of viscoelastic surfactant. Typically, two sub-streams were twisted together, and their flow directions change at the locations where the signs of geometric curvature change. The oscillation stripes represented the area of high extensional stress in the viscoelastic fluid, and were further identified by using polarized high-speed camera. Moreover, statistics shows that the viscoelastic flow field inside the curved microchannel shares the main features of elastic turbulence.

Three-dimensional macroporous CNT–SnO2 composite monolith for electricity generation and energy storage in microbial fuel cells

RSC Advances ◽  
2016 ◽  
Vol 6 (64) ◽  
pp. 59610-59618 ◽  
Author(s):  
Tigang Duan ◽  
Ye Chen ◽  
Qing Wen ◽  
Jinling Yin ◽  
Yuyang Wang
Keyword(s):  
Fuel Cells ◽  
Energy Storage ◽  
Microbial Fuel Cells ◽  
Electricity Generation ◽  
Three Dimensional

A 3D macroporous CNT–SnO2 composite as the anode in microbial fuel cells achieves both good electricity generation and energy storage.

scholarly journals Wood carbon electrode in microbial fuel cell enhances chromium reduction and bioelectricity generation

2021 ◽  
Author(s):  
Hongyuhang Ni ◽  
Aman Khan ◽  
Zi Yang ◽  
Yuxin Gong ◽  
Gohar Ali ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Electricity Generation ◽  
Three Dimensional ◽  
Good Choice ◽  
Carbon Cloth ◽  
Carbon Electrode ◽  
Carbon Felt ◽  
Bioelectricity Generation ◽  
Wide Scale

Abstract Microbial Fuel Cell (MFC) remediate hexavalent chromium (Cr(VI)) in wastewater, but inefficient removal for wide scale. In this study, a wood carbon (WC) electrode was introduce in MFC to analyzed the Cr(VI) remediation mechanism and effect of WC on it. The results show that the Cr(VI) was completely removed with WC electrode as compare to the carbon cloth (31.12 ± 0.31%) and carbon felt (34.83% ± 0.12) within 48 hours. The maximum power density of the WC electrode was 62.59 ± 0.27 mW m− 2. Here in, WC might a good choice with a three-dimensional porous structure for Cr(VI) contaminated wastewater treatment and electricity generation in MFC.

Fabrication of Cell-Adhesion Surface and Arteriole Model by Photolithography

2007 ◽  
Vol 19 (5) ◽  
pp. 535-543 ◽  
Author(s):  
Fumihito Arai ◽  
◽  
Takuma Nakano ◽  
Mika Tada ◽  
Yu-Ching Lin ◽  
...  
Keyword(s):  
Cell Adhesion ◽  
Distribution Density ◽  
Umbilical Vein ◽  
Three Dimensional ◽  
Surface Profile ◽  
Pdms Substrate ◽  
Solution Flow ◽  
Inner Surface ◽  
Blue Solution ◽  
Umbilical Vein Endothelial Cells

We have been developing scaffolds of three-dimensional (3D) synthetic vascular prosthesis in tailor-made. Human umbilical vein endothelial cells (HUVECs) attached on the inner surface of the scaffold have anticoagulant effects. Asperity structures of the inner surface are important to cell adhesion. It is important to quantify the inner surface asperity condition of the scaffold by observing HUVECs behavior and morphology. For this purpose, we recreated the inner surface profile of the scaffold on a poly(dimethilsiloxane) (PDMS) substrate by microfabrication. We made semiround convex patterns of resist that had 8 µm in diameter and 5 µm high using photolithography, and the concave pattern on the PDMS substrate by printing. We observed HUVECs adhering to the PDMS substrate having concave pattern on it surface. The distribution density of the concaves of the tested pattern is 1600 /mm2or 40,000 in a 25 mm2area. In addition, we fabricated an arteriole model by photolithography, creating an arteriole tube model that had 1.1 cm long and 300-400 µm in diameter. We confirmed that the arteriole model had no leakage using a methylene blue solution flow in the channel.

Highly efficient moisture-enabled electricity generation from graphene oxide frameworks

2016 ◽  
Vol 9 (3) ◽  
pp. 912-916 ◽  
Author(s):  
Fei Zhao ◽  
Yuan Liang ◽  
Huhu Cheng ◽  
Lan Jiang ◽  
Liangti Qu
Keyword(s):  
Graphene Oxide ◽  
Potential Energy ◽  
Electric Power ◽  
Electricity Generation ◽  
High Performance ◽  
Energy Harvester ◽  
Chemical Potential ◽  
Three Dimensional ◽  
Oxygen Gradient ◽  
Highly Efficient

A high performance chemical potential energy harvester for directly generating electric power has been developed on the basis of the three-dimensional assembly of graphene oxide with an oxygen gradient.

Loading rate and external resistance control the electricity generation of microbial fuel cells with different three-dimensional anodes

2008 ◽  
Vol 99 (18) ◽  
pp. 8895-8902 ◽  
Author(s):  
Peter Aelterman ◽  
Mathias Versichele ◽  
Massimo Marzorati ◽  
Nico Boon ◽  
Willy Verstraete
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Electricity Generation ◽  
Loading Rate ◽  
Three Dimensional ◽  
External Resistance

scholarly journals Modelling Miniature Microbial Fuel Cells with Three-dimensional Anodes

2022 ◽  
Vol 334 ◽  
pp. 08005
Author(s):  
Elisa Casula ◽  
Michele Mascia ◽  
Giorgia De Gioannis ◽  
Mirella Di Lorenzo ◽  
Marco Isipato ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Anode Materials ◽  
Electricity Generation ◽  
High Surface ◽  
Three Dimensional ◽  
Low Flow ◽  
Organic Load ◽  
Extracellular Electron Transfer ◽  
Biofilm Thickness

Microbial fuel cells (MFCs) exploit the metabolic activity of electroactive microorganisms for oxidation of organic compounds and extracellular electron transfer to an external electrode. the technology is associate with very slowreaction rates, resulting in low current densities. Anodes with high specific surface should be used to increase the overall electricity generation. Carbon-based 3D materials, with high surface per unit of volume, are largely used anode materials in MFCs, although may show significant lack in efficiency due to mass transfer limitations, concentration gradients, velocity distribution and resistivity of the material. Consequently, the concomitant effect of several parameters should be assessed and quantified to design highly performing MFCs implementing 3D anode materials. In this work, miniature MFCs with 3D anodes are mathematically modelled to quantify the effect of operative parameters on performance. The model combines equations of charge conservation, mass transport phenomena, hydrodynamics, and kinetics of the involved processes under transient conditions, and provides 3D profiles with time of velocity, biofilm thickness, substrate concentration, current density and potential. The solution predicts a laminar flow, as it was expected with the low flow rates used. The concentration profiles show the consumption of substrate in the anode, with low values of local concentrations depending on organic load in the feed stream. The model also provides a versatile tool to optimise the operative conditions of the system, managing the flow arrangements to maximise either substrate removal or electricity generation.

Consideration of Local Wind Energy

1998 ◽  
Vol 10 (5) ◽  
pp. 445-449
Author(s):  
Kouki Yamaji ◽  
◽  
Takaaki Hashimoto ◽  
Shoushi Inoue ◽  
Yutaka Konishi ◽  
...  
Keyword(s):  
Wind Energy ◽  
Wind Velocity ◽  
Potential Flow ◽  
Electricity Generation ◽  
Flow Analysis ◽  
Three Dimensional ◽  
Local Wind ◽  
Local Winds

We measured local wind velocity and direction on a hill west of Gamagori City for about 4.5 years, finding that the average annual wind velocity is 3.3m/s and wind with velocity exceeding 4m/s blows over 2500 hours a year. We concluded that useful local wind energy exists based on the electricity generation standard. Three-dimensional incompressible potential flow analysis clarified local winds.

Sign in / Sign up

Export Citation Format

Share Document