4.7 Article

Electrochemical Crosslinking of Alginate-Towards Doped Carbons for Oxygen Reduction

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。
Review Chemistry, Physical

ORR Catalysts Derived from Biopolymers

Jelena Rupar et al.

Summary: The limited reaction rate of the oxygen reduction reaction (ORR) is a limitation in fuel cells and metal-air batteries. Carbon-based catalysts, including those derived from alginate, have shown great promise in terms of economic viability and activity for ORR catalysis.

CATALYSTS (2023)

Article Spectroscopy

Spectral evidence of acetamiprid’s thermal degradation products and mechanism

Daliborka Popadić et al.

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY (2023)

Article Chemistry, Physical

Enhanced oxygen reduction reaction for Zn-air battery at defective carbon fibers derived from seaweed polysaccharide

Xiaoliang Zhao et al.

Summary: Carbon fibers with intrinsic defects (D-CFs) synthesized from seaweed polysaccharide show excellent ORR catalytic activity, making them a promising alternative to Pt/C catalyst for large-scale application in zinc-air batteries.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

Article Chemistry, Physical

Ex situ and in situ Magnetic Phase Synthesised Magneto-Driven Alginate Beads

Udara Bimendra Gunatilake et al.

Summary: Biocompatible magnetic hydrogels are important for safer biological and environmental applications. This study synthesized three types of magnetic alginate beads and characterized their physicochemical properties. The beads exhibited stable behavior in aqueous solution, which is essential for magneto-driven applications such as targeted drug delivery and water purification.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

Article Chemistry, Physical

Investigations on the ORR Catalytic Performance Attenuation of a 1D Fe Single-Atom Catalyst during the Discharge Process

Weifeng Su et al.

Summary: The study investigated the attenuation process of the oxygen reduction reaction (ORR) catalytic performance for Fe SAC@G catalysts under different discharging conditions, revealing that changes in KOH concentration and temperature can lead to a decrease in ORR catalytic activity, especially at negative discharging potentials and elevated temperatures. The analyses suggest that the weak Fe-N bonds break first, leading to a decline in catalytic performance, followed by the collapse of the catalyst structure as the weak C-C-unit bonds connecting the structural units break. This results in the transformation of Fe-N-4 coordination structure into Fe-N-3, Fe-N-2, and Fe-N coordination structures. Based on the density functional theory (DFT) calculations, a discharge attenuation mechanism is proposed, involving the structural collapse of the catalyst for the formation of a discharge byproduct with a ring structure.

JOURNAL OF PHYSICAL CHEMISTRY C (2022)

Article Chemistry, Applied

Tailored porosity development in carbons via Zn2+ monodispersion: Fitting supercapacitors

Jelena Rupar et al.

Summary: This study introduces a novel electrochemical method to prepare N-doped alginate-based carbon precursors with monodispersed zinc ions, showcasing their unique physical and chemical properties. The obtained carbon materials were evaluated comprehensively and showed excellent surface area and porosity evolution characteristics, highlighting their potential as electrode materials for supercapacitors. The controlled dispersion of zinc and N-doping with rivanol generated bio-based materials with outstanding capacitance and stability, indicating promising prospects for engineering future supercapacitors.

MICROPOROUS AND MESOPOROUS MATERIALS (2022)

Article Multidisciplinary Sciences

Electro-assisted printing of soft hydrogels via controlled electrochemical reactions

Arua Clayton Da Silva et al.

Summary: In this study, the authors explore a new approach to control gelation mechanisms and patterns using electrochemical-chemical-chemical reactions. By oxidizing the ionic species and/or molecules in solution at a specific electric potential, an intermediate species is generated and reacts with macromolecules to form hydrogels. This method allows for the selection of gelation reactions and control of hydrogel growth rate, and has been demonstrated for patterning hydrogels on gold and flexible ITO foils using a commercial 3D printer.

NATURE COMMUNICATIONS (2022)

Article Chemistry, Physical

Boosting Oxygen Electrocatalysis by Combining Iron Nanoparticles with Single Atoms

Bowen Liu et al.

Summary: Here, an efficient and durable bifunctional oxygen electrocatalyst of Fe@Fe-SAC composite is reported. It exhibits comparable activity to noble metal catalysts and shows good stability in a basic electrolyte. The synthesis method is simple and scalable, which is promising for large-scale application.

CATALYSTS (2022)

Article Chemistry, Physical

How to Obtain Maximum Environmental Applicability from Natural Silicates

Daliborka Popadic et al.

Summary: In this study, unmodified natural silicates were tested as adsorbents for organic pollutants in water. Bentonite showed the highest adsorption capacity, removing up to 237 mg/g of pollutants. The treated adsorbent was also found to be effective as an electrode material for oxygen reduction, achieving a significant removal rate of Methylene Blue through electrochemical treatment.

CATALYSTS (2022)

Article Chemistry, Physical

An In-Depth Exploration of the Electrochemical Oxygen Reduction Reaction (ORR) Phenomenon on Carbon-Based Catalysts in Alkaline and Acidic Mediums

Niladri Talukder et al.

Summary: This paper presents a study on the ORR phenomenon of a newly developed carbon-based catalyst, N-G/MOF, through RDE and RRDE experiments using the LSV approach. The functions and considerations for different parts of the experiment are outlined and discussed, providing guidelines for new researchers in this field. The shapes of LSV curves and their correlations with possible ORR reaction pathways are analyzed in-depth. The paper also demonstrates the influence of hydrogen peroxide presence and acid concentration on the ORR current density output.

CATALYSTS (2022)

Article Chemistry, Multidisciplinary

The performance of an atomically dispersed oxygen reduction catalyst prepared by γ-CD-MOF integration with FePc

Dawei Xu et al.

Summary: In this study, a series of Fe/N/C catalysts with different proportions and pyrolysis temperatures were prepared by co-pyrolysis of melamine with a gamma-cyclodextrin metal-organic framework (gamma-CD-MOF) containing iron(ii) phthalocyanine (FePc). It was found that gamma-CD-MOF effectively prevented the agglomeration of Fe atoms and obtained catalysts with a three-dimensional porous and internal cavity structure. The obtained FePc@CD/M (1 : 20)-1000 catalyst exhibited superior electrocatalytic performance and methanol tolerance.

NANOSCALE ADVANCES (2022)

Review Materials Science, Multidisciplinary

Iron(iii)-cross-linked alginate hydrogels: a critical review

Daniel Massana Roquero et al.

Summary: Ionotropic alginate hydrogels are versatile materials with biocompatibility and biodegradability, suitable for various applications such as tissue engineering and drug delivery. The cross-linking of alginate with Fe3+ cations has attracted increasing interest due to its unique coordination and rich redox chemistry.

MATERIALS ADVANCES (2022)

Article Chemistry, Physical

Preparation of iron and nitrogen co-doped carbon material Fe/N-CCM-T for oxygen reduction reaction

Xue Mi et al.

Summary: In this paper, Fe/N-C-CM-T with nanotube structure was synthesized and showed high electrocatalytic performance for ORR. Fe/N-C-CM-T exhibited better ORR performance than other carbon materials, attributed to its nanotube structure, high specific surface area, and high N content.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

Article Energy & Fuels

Iron-doped carbon electrode materials derived from polyethersulfone

Dichen Wu et al.

Summary: This study successfully prepared iron-doped carbon materials, demonstrating higher capacitance, better rate performance, and cycling stability compared to the original carbon material.

JOURNAL OF ENERGY STORAGE (2021)

Article Nanoscience & Nanotechnology

Universal Method to Fabricate Transition Metal Single-Atom-Anchored Carbon with Excellent Oxygen Reduction Reaction Activity

Lin-Qian Yu et al.

Summary: This study presents a simple and cost-effective method to fabricate transition metal SACs through ion exchange and annealing procedures, utilizing the egg-box structure property of alginate to anchor metal ions effectively. The obtained Cu SAC exhibited comparable oxygen reduction reaction activity to Pt/C, with Cu-N-4 identified as the responsible catalytic site. The proposed method shows universality for synthesizing other transition metal SACs, indicating potential for cost-effective and universal SAC synthetic method development.

ACS APPLIED MATERIALS & INTERFACES (2021)

Article Biochemistry & Molecular Biology

Promotional effect of embedded Ni NPs in alginate-based carbon toward Pd NPs efficiency for high-concentration p-nitrophenol reduction

Hao Liu et al.

Summary: A highly dispersed Ni nanoparticles-modified N-doped mesoporous carbon material was prepared, with a small amount of Pd nanoparticles deposited on the surface to achieve excellent catalytic performance in degrading high-concentration p-nitrophenol and easy separation characteristics. The catalyst also maintained good catalytic capacity even after five reaction cycles.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2021)

Review Chemistry, Physical

Molecular Control of Carbon-Based Oxygen Reduction Electrocatalysts through Metal Macrocyclic Complexes Functionalization

Yaoshuai Hong et al.

Summary: Fuel cells and metal-air batteries have great potential for sustainable energy technologies due to their zero pollution and high efficiency. However, the high cost and scarcity of Pt-based materials as cathode catalysts limit their scalability. Recent progress in nonprecious-metal catalysts has addressed some of these challenges.

ADVANCED ENERGY MATERIALS (2021)

Review Chemistry, Physical

Recent progress on the synthesis and oxygen reduction applications of Fe-based single-atom and double-atom catalysts

Yan Yan et al.

Summary: Fe-based atomic catalysts show great advantages in the ORR due to high atom-utilization efficiency and well-defined active sites. The high performance is mainly attributed to the coordination condition and electronic structures. Achieving high activity and stability with a high content of metal atoms remains a major challenge.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

Article Materials Science, Multidisciplinary

Carbon fibers-coated Co@N-doped porous carbon derived from ZIF-67/alginate fibers for efficient oxygen reduction reaction

Nana Jia et al.

JOURNAL OF PHOTONICS FOR ENERGY (2020)

Review Chemistry, Multidisciplinary

Carbon-Based Electrocatalysts Derived From Biomass for Oxygen Reduction Reaction: A Minireview

Mi Wang et al.

FRONTIERS IN CHEMISTRY (2020)

Article Chemistry, Multidisciplinary

Versatile Strategy for Tuning ORR Activity of a Single Fe-N4 Site by Controlling Electron-Withdrawing/Donating Properties of a Carbon Plane

Yeongdong Mun et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2019)

Article Chemistry, Multidisciplinary

Se-Doping Activates FeOOH for Cost-Effective and Efficient Electrochemical Water Oxidation

Shuai Niu et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2019)

Review Chemistry, Multidisciplinary

Oxygen Reduction by Homogeneous Molecular Catalysts and Electrocatalysts

Michael L. Pegis et al.

CHEMICAL REVIEWS (2018)

Review Chemistry, Multidisciplinary

Advanced Biomass-Derived Electrocatalysts for the Oxygen Reduction Reaction

Maryam Borghei et al.

ADVANCED MATERIALS (2018)

Article Chemistry, Multidisciplinary

Single Atomic Iron Catalysts for Oxygen Reduction in Acidic Media: Particle Size Control and Thermal Activation

Hanguang Zhang et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2017)

Review Chemistry, Multidisciplinary

Single-Atom Electrocatalysts

Chengzhou Zhu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2017)

Article Multidisciplinary Sciences

In situ electrochemical quantification of active sites in Fe-N/C non-precious metal catalysts

Daniel Malko et al.

NATURE COMMUNICATIONS (2016)

Article Chemistry, Physical

Tailoring molecular architectures of Fe phthalocyanine on nanocarbon supports for high oxygen reduction performance

Shiming Zhang et al.

JOURNAL OF MATERIALS CHEMISTRY A (2015)

Article Chemistry, Multidisciplinary

Potassium hydroxide activation of activated carbon: a commentary

Tang Shu Hui et al.

CARBON LETTERS (2015)

Article Multidisciplinary Sciences

Active and stable carbon nanotube/nanoparticle composite electrocatalyst for oxygen reduction

Hoon T. Chung et al.

NATURE COMMUNICATIONS (2013)