Effect of the bio-inspired modification of low-cost membranes with TiO2:ZnO as microbial fuel cell membranes

Soria, Raúl Bahamonde; Chinchin, Billy Daniel; Arboleda, Daniel; Zhao, Yan; Bonilla, Pablo; Bruggen, Bart Van der; Luis, Patricia

doi:10.1016/j.chemosphere.2021.132840

Cited by 15 publications

(6 citation statements)

References 97 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…During the impregnation of modified MoS 2 with DA solution, DA molecules undergo oxidative self‐polymerisation to generate PDA aggregates, which are deposited on, and adhered to, the surface of MoS 2 to form a PDA layer. This stable PDA layer can act as a ‘glue’ [26, 27]. Therefore, the filling gap between MoS 2 and the dimples became smaller after DA modification and the binding between MoS 2 and matrix became stronger.…”

Section: Resultsmentioning

confidence: 99%

Tribological characteristics of dimpled surfaces filled with dopamine‐modified MoS₂

Qin,

Yu,

Zhao

et al. 2023

Biosurface and Biotribology

View full text Add to dashboard Cite

To improve the tribological characteristics of dimples on the surface of 45 steel, the dimples were filled with MoS2 and MoS2 modified by dopamine (MoS2 @ DA), and ball‐disk friction and wear tests were conducted. Specifically, the dimple filling gap, abrasion depth, and surface cross‐sectional area of 45 steel were measured. The wear morphology of the friction ball and exfoliation of MoS2 in the dimples and the bending characteristics of the specimens were studied. The surface friction coefficient of MoS2 @ DA‐filled specimen was 17.9% lower than MoS2‐filled specimen, and the dimple filling gap was 70.1% lower, the surface abrasion depth was 5.8% lower, and the abrasion cross‐sectional area was 17.7% smaller. Moreover, the bending strength of the MoS2 @ DA specimen was 3.27 times greater than that of the MoS2 specimen, and the exfoliation of MoS2 was slowed by filling with the MoS2 @ DA. Finally, the tribological characteristics were also superior for the specimens prepared with MoS2 @ DA.

show abstract

Section: Resultsmentioning

confidence: 99%

Tribological characteristics of dimpled surfaces filled with dopamine‐modified MoS₂

Qin,

Yu,

Zhao

et al. 2023

Biosurface and Biotribology

View full text Add to dashboard Cite

show abstract

“…Finally, the electrons, protons, and oxygen, or some other electron acceptor, such as ferricyanide or dichromate, combine in the cathode chamber to produce water or the respective reduced product. [4] A simplified reaction utilizing acetate as the organic substrate and oxygen as electron acceptor is shown in Table 1. [5] Since the overall cell potential is positive, the fuel cell is viable and can produce bioelectricity.…”

Section: Working Of Microbial Fuel Cellsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Next‐Generation Proton‐Exchange Membranes in Microbial Fuel Cells: Overcoming Nafion's Limitations

Sharma,

Đelević,

Herkendell

2024

Energy Tech

View full text Add to dashboard Cite

The adoption of microbial fuel cell (MFC) technology hinges on the development of efficient proton‐exchange membranes (PEMs), which significantly influences fuel cell performance and cost. PEMs have a critical role in preventing oxygen crossover, maintaining electrochemical neutrality, and supporting microorganisms within MFCs. Nafion, the current industry‐standard PEM, grapples with environmental, cost, and performance issues. Although improvements to Nafion have been reported using additives, immersion in heteropolyacids, different pretreatment methods, and UV irradiation, many of the challenges still remain. Herein, the recent developments in the area of alternative PEMs are reviewed and analyzed. Among them, sulfonated aromatic hydrocarbons, particularly sulfonated polyether ether ketone, have emerged as top contenders in terms of scale up and commercial viability. At the same time, membranes based on polyvinyl alcohol, ionic liquids, and natural materials are also being actively researched for various MFC applications. Since most studies are short term and lab scale, there is a need evaluate long‐term stability and economic cost of PEMs in terms of standardized parameters such as power‐to‐cost and normalized energy recovery. Additionally, for emerging low‐energy‐density MFC applications like biosensors and in vivo power sources, PEM properties and design need to be tailored carefully.

show abstract

“…A stable polydopamine layer with a certain thickness can act as a "glue". [58][59][60][61][62] Therefore, polydopamine forms in the gap between the PTFE and dimples, reducing the filled gap and improving the bonding strength between the inner wall of the dimple and PTFE.…”

Section: Filled Gap and The Shear Strength Between Ptfe And Steelmentioning

confidence: 99%

Tribological properties of dopamine-modified dimple textured surfaces filled with PTFE

Zhao

Zou

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part J:

View full text Add to dashboard Cite

PTFE-filled textured surfaces were impregnated with the dopamine dipping solution to improve their tribological performances. Ball-on-disc wear experiments were conducted to compare tribological properties of three surfaces: the textured surface, filled textured surface and modified filled textured surface. The worn surfaces, wear debris, and shedding areas of the PTFE were measured, and shear strength between the PTFE block and medium carbon steel after impregnation modification was analysed. Experimental results showed that compared with textured surfaces, filled textured surfaces and modified filled textured surfaces had lower friction coefficient values and cross-sectional areas of wear scars. Compared with the filled textured surface, the modified filled textured surface reduces filled gaps by 63.5% and the shedding ratio of the PTFE within dimples by 63.2%. The research results demonstrate that tribological performances of the filled textured surface can improve after impregnation modification. Polydopamine can react to covalent-noncovalent interaction with PTFE and medium carbon steel. Polydopamine acts as a binder to improve the bonding strength between the PTFE and the inner wall of dimples. Polydopamine can reduce the shedding ratio of the PTFE and maintain the antifriction function of the PTFE in dimples.

show abstract

Effect of the bio-inspired modification of low-cost membranes with TiO2:ZnO as microbial fuel cell membranes

Cited by 15 publications

References 97 publications

Tribological characteristics of dimpled surfaces filled with dopamine‐modified MoS₂

Tribological characteristics of dimpled surfaces filled with dopamine‐modified MoS₂

Next‐Generation Proton‐Exchange Membranes in Microbial Fuel Cells: Overcoming Nafion's Limitations

Tribological properties of dopamine-modified dimple textured surfaces filled with PTFE

Contact Info

Product

Resources

About

Effect of the bio-inspired modification of low-cost membranes with TiO2:ZnO as microbial fuel cell membranes

Cited by 15 publications

References 97 publications

Tribological characteristics of dimpled surfaces filled with dopamine‐modified MoS2

Tribological characteristics of dimpled surfaces filled with dopamine‐modified MoS2

Next‐Generation Proton‐Exchange Membranes in Microbial Fuel Cells: Overcoming Nafion's Limitations

Tribological properties of dopamine-modified dimple textured surfaces filled with PTFE

Contact Info

Product

Resources

About

Tribological characteristics of dimpled surfaces filled with dopamine‐modified MoS₂

Tribological characteristics of dimpled surfaces filled with dopamine‐modified MoS₂