4.6 Article

Variation of graphene/titanium dioxide concentration as electrocatalyst for an oxygen reduction reaction in constructed wetland-microbial fuel cells

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Environmental Sciences

Bioelectricity production using shade macrophytes in constructed wetlands-microbial fuel cells

Oscar Guadarrama-Perez et al.

Summary: The coupling of constructed wetlands to microbial fuel cells is a promising hybrid technology for generating electricity and removing pollutants from wastewater. This study evaluated the bioelectricity production from constructed wetlands-microbial fuel cells using different species of shade macrophytes, and found that Philodendron cordatum was the most efficient in terms of voltage and power density.

ENVIRONMENTAL TECHNOLOGY (2022)

Article Materials Science, Multidisciplinary

Characterization of Defined Pt Particles Prepared by Ultrasonic Spray Pyrolysis for One-Step Synthesis of Supported ORR Composite Catalysts

Goezde Alkan et al.

Summary: Polygonal Pt nanoparticles with characteristic and uniform size and shape were synthesized using ultrasonic spray pyrolysis (USP). Compared to commercial Pt black, the USP-synthesized Pt nanoparticles exhibited larger particle size and lower oxygen reduction reaction (ORR) activity. However, they showed less sensitivity to current perturbations at higher overpotentials, which may be attributed to their less-compact catalyst layers and uniform particle size distribution.

METALS (2022)

Article Chemistry, Physical

Boosting 2e- oxygen reduction reaction in garland carbon nitride with carbon defects for high-efficient photocatalysis-self-Fenton degradation of 2,4-dichlorophenol

Yang Wu et al.

Summary: A photocatalysis-self-Fenton system was constructed using garland g-C3N4 with carbon defects (GCN-PSFs) for pollutants degradation. Carbon defects in GCN not only improve 2e(-) ORR but also accelerate charge separation, resulting in the generation of abundant HO· radicals for efficient degradation of organic pollutants.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

Article Agricultural Engineering

Improving oxygen reduction reaction of microbial fuel cell by titanium dioxide attaching to dual metal organic frameworks as cathode

Jiaqi Yang et al.

Summary: A two-step simple distributed feeding method was used to prepare the core-shell nanocomposite dual metal organic frameworks TiO2@ZIF-67/ZIF-8. The composite material exhibited a core-shell structure with a rough surface, and showed excellent electrochemical activity with significantly higher power density and voltage output compared to other MOFs.

BIORESOURCE TECHNOLOGY (2022)

Review Chemistry, Multidisciplinary

Theoretical Modeling of Electrochemical Proton-Coupled Electron Transfer

Robert E. Warburton et al.

Summary: Proton-coupled electron transfer (PCET) is crucial in electrocatalytic processes. Various theoretical and computational methods have been developed to study electrochemical PCET and calculate related potentials and energies. Periodic density functional theory is also utilized to perform molecular dynamics simulations. Maintaining a constant electrode potential and modeling complex interactions in the electric double layer have been explored. Both homogeneous and heterogeneous electrochemical PCET have been studied, providing analytical expressions for rate constants and current densities.

CHEMICAL REVIEWS (2022)

Review Chemistry, Physical

Oxygen reduction reaction electrocatalysis in neutral media for bioelectrochemical systems

Carlo Santoro et al.

Summary: The oxygen reduction reaction (ORR) is critical for energy conversion, corrosion, and chemical technologies. It plays a significant role in biological processes and is widely used in bioelectrochemical devices and systems. Researchers are currently studying the specifics of the ORR in close-to-neutral environments and analyzing catalyst limitations and technological challenges associated with oxygen depolarization.

NATURE CATALYSIS (2022)

Article Environmental Sciences

Identification of sugars as root exudates of the macrophyte species Juncus effusus and Philodendron cordatum in constructed wetland-microbial fuel cells during bioelectricity production

Oscar Guadarrama-Perez et al.

Summary: Constructed wetland-microbial fuel cells (CW-MFCs) systems are a sustainable technology that can generate bioelectricity and treat wastewater. This study evaluated the bioelectricity production capacity of Juncus effusus and Philodendron cordatum species in a CW-MFC without external carbon sources. Juncus effusus showed higher bioelectrochemical performance, with sucrose and glucose identified as the primary electron donors.

ENVIRONMENTAL TECHNOLOGY (2022)

Article Chemistry, Physical

Magnetic fields enhance mass transport during electrocatalytic reduction of CO2

Mohamad S. Kodaimati et al.

Summary: The selectivity of electrocatalytic reduction of CO2 can be improved by increasing mass transport through the use of magnetic fields orthogonal to the ionic current. This leads to higher current densities and improved selectivity compared to systems without magnetic fields or mechanical agitation.

CHEM CATALYSIS (2022)

Article Engineering, Chemical

Titanium Dioxide/N-Doped Graphene Composites as Non-Noble Bifunctional Oxygen Electrocatalysts

Jose Manuel Luque-Centeno et al.

Summary: This study demonstrates that composites of TiO2 and N-doped graphene can serve as active catalysts for oxygen reduction and evolution reactions in an alkaline environment, potentially offering a new opportunity for developing non-noble and promising electrocatalysts in energy storage technology.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2021)

Article Electrochemistry

Oxygen reduction reaction (ORR) electrocatalysts in constructed wetland-microbial fuel cells: Effect of different carbon-based catalyst biocathode during bioelectricity production

Edson Baltazar Estrada-Arriaga et al.

Summary: This study investigated the catalytic activities of oxygen reduction reaction (ORR) in constructed wetland-microbial fuel cells (CW-MFCs) using different carbon-based catalysts, which showed that the catalysts enhanced the electrocatalytic activities of bioelectrodes and increased bioelectricity production. The highest bioelectrochemical performance was achieved with G/TiO2 and C/Pt electrocatalysts, leading to a significant increase in bioelectricity production compared to biocathodes without a catalytic layer.

ELECTROCHIMICA ACTA (2021)

Article Chemistry, Physical

S, N co-doped graphene quantum dots decorated TiO2 and supported with carbon for oxygen reduction reaction catalysis

Debashis Mahato et al.

Summary: Sluggish kinetics and catalyst instability in oxygen reduction reaction are major challenges in fuel cell and metal-air battery technologies. The synthesized composite S,N-GQD/TiO2/C-800 shows outstanding catalytic activity and stability, attributed to the well-built interactivity between the components and carbon support, offering advantages in terms of electrical conductivity, surface area, and charge transfer kinetics.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

Review Chemistry, Multidisciplinary

The Role of Wetland Plants on Wastewater Treatment and Electricity Generation in Constructed Wetland Coupled with Microbial Fuel Cell

Ke Li et al.

Summary: CWMFC, a novel technology for wastewater treatment and electricity generation, has gained attention for its low-cost and sustainability, but its efficiency is influenced by various factors. This study investigates the impact of wetland plants on CWMFC performance, focusing on the role of macrophytes in oxygen input, nutrient uptake, and pollutant degradation.

APPLIED SCIENCES-BASEL (2021)

Article Electrochemistry

Electricity generation from moss with light-driven microbial fuel cells

Pablo Ampudia Castresana et al.

ELECTROCHIMICA ACTA (2019)

Article Chemistry, Physical

Electrode material properties for designing effective microbial electrosynthesis systems

Mohita Sharma et al.

JOURNAL OF MATERIALS CHEMISTRY A (2019)

Article Materials Science, Multidisciplinary

Catalytic performance of nano-hybrid graphene and titanium dioxide modified cathodes fabricated with facile and green technique in microbial fuel cell

M. Mashkour et al.

PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL (2017)

Review Green & Sustainable Science & Technology

Plant microbial fuel cells: A promising biosystems engineering

Rachnarin Nitisoravut et al.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2017)

Article Materials Science, Multidisciplinary

Catalytic performance of nano-hybrid graphene and titanium dioxide modified cathodes fabricated with facile and green technique in microbial fuel cell

M. Mashkour et al.

PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL (2017)

Article Chemistry, Physical

Reduced graphene oxide supported TiO2 as high performance catalysts for oxygen reduction reaction

Jiemei Yu et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2016)

Article Chemistry, Multidisciplinary

Origin of the Electrocatalytic Oxygen Reduction Activity of Graphene-Based Catalysts: A Roadnnap to Achieve the Best Performance

Yan Jiao et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2014)

Article Electrochemistry

Elementary Mechanisms in Electrocatalysis: Revisiting the ORR Tafel Slope

Adam Holewinski et al.

JOURNAL OF THE ELECTROCHEMICAL SOCIETY (2012)

Article Chemistry, Analytical

Activation energy of electrochemical reaction measured at a constant value of electrode potential

V. S. Protsenko et al.

JOURNAL OF ELECTROANALYTICAL CHEMISTRY (2011)

Article Biochemistry & Molecular Biology

Factors Affecting Electric Output from Rice-Paddy Microbial Fuel Cells

Kazuko Takanezawa et al.

BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY (2010)

Review Astronomy & Astrophysics

Charge Transfer Reactions

Konrad Dennerl

SPACE SCIENCE REVIEWS (2010)