4.8 Article

Steering the oxygen reduction reaction pathways of N-carbon hollow spheres by heteroatom doping

Related references

Note: Only part of the references are listed.
Article Chemistry, Physical

Surface-confined self-reconstruction to sulfate-terminated ultrathin layers on NiMo3S4 toward biomass molecule electro-oxidation

Tong Wu et al.

Summary: In this study, a self-confined surface reconstruction strategy is proposed to construct NiOOH layers with superior activity and stability for biomass electro-oxidation. The strategy effectively prevents in-depth surface oxidation and enhances electron transfer kinetics, resulting in high reaction conversion and selectivity.

APPLIED CATALYSIS B-ENVIRONMENTAL (2023)

Review Chemistry, Multidisciplinary

Tuning Two-Electron Oxygen-Reduction Pathways for H2O2 Electrosynthesis via Engineering Atomically Dispersed Single Metal Site Catalysts

Xiaoxuan Yang et al.

Summary: Electrochemical oxygen reduction reaction (ORR) for generating hydrogen peroxide (H2O2) is a green alternative to traditional energy-intensive processes, and single metal site catalysts have emerged as promising ORR electrocatalysts. This article summarizes recent methodologies and achievements in developing these catalysts for selective reduction of O2 to H2O2. It also emphasizes the importance of catalyst stability and solutions to improve tolerance to H2O2, and highlights the challenges in translating catalyst properties to electrode performance for practical applications.

ADVANCED MATERIALS (2022)

Article Chemistry, Multidisciplinary

A Facile Double-Catalysts Approach to Directionally Fabricate Pyridinic N-B-Pair-Doped Crystal Graphene Nanoribbons/Amorphous Carbon Hybrid Electrocatalysts for Efficient Oxygen Reduction Reaction

Mengmeng Fan et al.

Summary: The double-catalysts strategy of crystal graphene nanoribbons/amorphous carbon doped by pyridinic N-B pairs is presented to enhance the catalytic performance of carbon material for oxygen reduction reaction. The pyridinic N-B pair shows the highest catalytic activity among all the potential configurations.

ADVANCED MATERIALS (2022)

Article Chemistry, Multidisciplinary

Tailoring the Electronic Structure of an Atomically Dispersed Zinc Electrocatalyst: Coordination Environment Regulation for High Selectivity Oxygen Reduction

Yaling Jia et al.

Summary: Accurately regulating the selectivity of the oxygen reduction reaction (ORR) by tailoring the coordination environment of atomically dispersed Zn sites can achieve high selectivity, with ZnO3C catalyst processing a 2 e(-) ORR pathway for H2O2 generation in 0.1 M KOH. This is attributed to the decreased electron density around Zn in ZnO3C which changes the intermediate adsorption and contributes to the high selectivity towards 2 e(-) ORR.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022)

Article Multidisciplinary Sciences

Manipulating the oxygen reduction reaction pathway on Pt-coordinated motifs

Jiajun Zhao et al.

Summary: Controlling the coordination environment of Pt can manipulate the 2e(-) or 4e(-) reduction pathways, leading to controlled product selectivity and H2O2 generation rate during oxygen reduction.

NATURE COMMUNICATIONS (2022)

Article Chemistry, Physical

Preparation of Chemically Structure-Controlled BN-Doped Carbons for the Molecular Understanding of Their Surface Active Sites for Oxygen Reduction Reaction

Takafumi Ishii et al.

Summary: This study prepared chemically structure-controlled BN-doped carbons and found that the B-N-C moieties in these carbons serve as the active sites for the oxygen reduction reaction (ORR), resulting in higher ORR activity compared to single-atom-doped carbons. The enhanced ORR activity can be attributed to the electrochemical H2O2 reduction capability of the BN-doped carbon.

ACS CATALYSIS (2022)

Article Engineering, Environmental

Transfer of molecular oxygen and electrons improved by the regulation of C-N/C = O for highly efficient 2e-ORR

Tong Zhang et al.

Summary: By synthesizing ordered matrix and disordered edge to regulate the transfer of molecules and electrons, and utilizing Interface Atomic Domains (IAD) to control the dynamics of two-electron oxygen reduction reaction (2e-ORR), the high activity and selectivity of 2e-ORR have been achieved.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Chemistry, Physical

Screening of catalytic oxygen reduction reaction activity of 2, 9-dihalo-1, 10-phenanthroline metal complexes: The role of transition metals and halogen substitution

Yizhen Zhang et al.

Summary: The study found that 2,9-dihalo-1,10-phenanthroline metal complexes exhibit good performance in the oxygen reduction reaction, with Ni-Br showing the lowest overpotential. By substituting halogens, the electronic structures of TM-X can be improved to enhance their ORR activity.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

Article Chemistry, Applied

The ORR electron transfer kinetics control via Co-Nx and graphitic N sites in cobalt single atom catalysts in alkaline and acidic media

Tong Shen et al.

Summary: This study successfully enhances the activity of cobalt single atoms on carbon nanosheets by adjusting the content of different nitrogen components, leading to the construction of efficient catalysts. The research reveals that Co-N-x and graphitic N are the main active sites, and the kinetics of oxygen reduction reaction in alkaline media can be positively influenced by the conductivity of the catalysts.

JOURNAL OF ENERGY CHEMISTRY (2022)

Article Chemistry, Physical

Sulfamethoxazole degradation by regulating active sites on distilled spirits lees-derived biochar in a continuous flow fixed bed peroxymonosulfate reactor

Yanshan Wang et al.

Summary: This study investigates the synergistic roles of active sites in a continuous flow fixed bed PMS reactor, revealing the superior catalytic activity and durability of biochar with high graphite N, C-O content and defect degree in sulfamethoxazole removal.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

Article Chemistry, Physical

Nitrogen-doping hollow carbon nanospheres derived from conjugated microporous polymers toward oxygen reduction reaction

Hanxue Sun et al.

Summary: This work synthesized a new type of non-precious metal catalyst CMP-NP-x, and controlled its surface area and nitrogen content by adjusting the pyrolysis temperature. The experimental results showed that CMP-NP-x exhibited excellent catalytic activity and methanol tolerance in the oxygen reduction reaction, making it more promising than commercial Pt/C catalyst.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

Review Chemistry, Applied

Carbon-based bifunctional electrocatalysts for oxygen reduction and oxygen evolution reactions: Optimization strategies and mechanistic analysis

Huidong Xu et al.

Summary: This article reviews different types of bifunctional ORR/OER electrocatalysts with activated surface sites and discusses methods to improve catalytic performance by controlling the microstructure of the catalysts and optimizing their electronic structures. It also analyzes the challenges in structural design and surface engineering of bifunctional ORR/OER catalysts and proposes potential solutions.

JOURNAL OF ENERGY CHEMISTRY (2022)

Article Engineering, Environmental

Carbon charge population and oxygen molecular transport regulated by program-doping for highly efficient 4e-ORR

Tong Zhang et al.

Summary: Oxygen reduction reaction (ORR) is a crucial reaction in hydrogen peroxide (H2O2) generation and fuel cells. Carbon, as a catalyst, shows potential to enhance the kinetics of ORR, but its intrinsic activity is under debate. This work explores the co-regulation of nitrogen (N) and sulfur (S) to control the charge population of carbon. It is found that electron-withdrawing configurations of N and thiophene-S lead to more positive charge distribution, while pyrrole-N acts as an electron-donor and disrupts charge delocalization. The study also demonstrates the enhancement of O-2 transfer by physical absorption and reaction consumption.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Chemistry, Physical

Oxygenated P/N co-doped carbon for efficient 2e- oxygen reduction to H2O2

Zongge Li et al.

Summary: In this study, a doped carbon material with rich edged P atoms co-functionalized with O and N atoms was successfully synthesized via solvothermal treatment and inert annealing. The optimized sample exhibited high H2O2 yield rate and Faradaic efficiency. The density functional theory calculations further confirmed the experimental results.

JOURNAL OF MATERIALS CHEMISTRY A (2022)

Article Chemistry, Multidisciplinary

Effect of doping order on metal-free heteroatoms dual-doped carbon as oxygen reduction electrocatalyst

Hui-Juan Zhang et al.

Summary: Metal-free heteroatoms dual-doped carbon, including different doping orders of X and N, have been optimized to achieve the best electrocatalytic performance. XC-N shows the highest defect density and the best performance. XPS measurements indicate successful dual-doping of N and X into the carbon matrix. Electrocatalytic performance follows the order of XC-N > NC-X > NXC.

CHINESE CHEMICAL LETTERS (2021)

Article Engineering, Environmental

Earth-abundant metal-free carbon-based electrocatalysts for Zn-air batteries to power electrochemical generation of H2O2 for in-situ wastewater treatment

Kun Wang et al.

Summary: The study focused on the development of an integrated system using novel carbon-based electrocatalysts for oxygen reduction reactions in Zn-air batteries and in-situ degradation of pollutants in wastewater. The newly-developed catalysts showed high selectivity and efficiency in producing H2O2, which led to promising results in pollutant degradation, indicating potential for practical applications in wastewater treatment.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Electrochemistry

Hydrogen peroxide electrosynthesis via regulating the oxygen reduction reaction pathway on Pt noble metal with ion poisoning

Dequan He et al.

Summary: This study explores a simple ion poisoning strategy to regulate the Pt/C catalyst for electrochemical production of H2O2 through ORR in acid media. The modified Pt/C catalyst shows high activity and selectivity over 90% at a wide range of potentials, with excellent stability after 30 hours. This work provides a promising poisoning strategy to selectively regulate precious catalysts for the electrochemical production of H2O2.

ELECTROCHIMICA ACTA (2021)

Article Chemistry, Physical

Defect-rich and metal-free N, S co-doped 3D interconnected mesoporous carbon material as an advanced electrocatalyst towards oxygen reduction reaction

Shuo Cao et al.

Summary: A new N and S dual-doped three-dimensional mesoporous carbon catalyst with excellent ORR performance has been developed, showing great potential for practical applications in energy conversion and storage devices.

CARBON (2021)

Article Chemistry, Physical

Oxygen Reduction Reaction of Third Element-Modified Pt/Pd(111): Effect of Atomically Controlled Ir Locations on the Activity and Durability

Keisuke Kusunoki et al.

Summary: The study investigated the impact of Ir modification on Pt/Pd(111) catalyst surfaces, showing that after 500 potential cycles, the ORR activity and durability of the Ir-modified Pt/Ir/Pd(111) surface were improved, while the non-Ir-modified Pt/Pd(111) surface deactivated after 500 potential cycles.

ACS CATALYSIS (2021)

Review Chemistry, Multidisciplinary

Design Strategies of Non-Noble Metal-Based Electrocatalysts for Two-Electron Oxygen Reduction to Hydrogen Peroxide

Hui Zhao et al.

Summary: This review discusses the usage of non-noble metal-based catalysts for electrochemical synthesis of H2O2, highlighting design strategies, reaction mechanisms, and future challenges and opportunities for further development.

CHEMSUSCHEM (2021)

Article Chemistry, Multidisciplinary

Unveiling the Nature of Pt Single-Atom Catalyst during Electrocatalytic Hydrogen Evolution and Oxygen Reduction Reactions

Junjie Li et al.

Summary: This study achieves high loading of Pt single atoms on carbon nanosheets through atomic layer deposition and investigates the activity of Pt single atoms and nanoparticles using operando X-ray absorption spectroscopy in the hydrogen evolution reaction and oxygen reduction reaction. The results reveal differences in the unoccupied density of states of Pt 5d orbitals between Pt single atoms and nanoparticles, as well as the formation of a stable Pt oxide during ORR on the Pt-1/NCNS catalyst.

SMALL (2021)

Review Nanoscience & Nanotechnology

Defect and Doping Co-Engineered Non-Metal Nanocarbon ORR Electrocatalyst

Jian Zhang et al.

Summary: This review summarizes recent advances in developing non-metal carbon-based electrocatalysts for the ORR, emphasizing the characteristics, ORR performance, and mechanisms of functionalized nanocarbons by heteroatom doping and defect inducing.

NANO-MICRO LETTERS (2021)

Article Chemistry, Multidisciplinary

Controlling Oxygen Reduction Selectivity through Steric Effects: Electrocatalytic Two-Electron and Four-Electron Oxygen Reduction with Cobalt Porphyrin Atropisomers

Bin Lv et al.

Summary: This study demonstrates the control of ORR selectivity of Co porphyrins by tuning steric effects, with αβαβ isomer catalyzing 2 e(-) ORR and αααα isomer improving 4 e(-) ORR selectivity. This finding expands the pathway for modulating molecular selectivity in catalytic performance.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Chemistry, Physical

Surface O2- regulation on POM electrocatalyst to achieve accurate 2e/4e-ORR control for H2O2 production and Zn-air battery assemble

Yang Zheng et al.

Summary: Polyoxometalate, after vulcanization, exhibits a two-electron feature in oxygen reduction reaction, with weakened OOH* adsorption and enhanced selectivity. In contrast, pure polyoxometalate shows a typical four-electron character. Vulcanized polyoxometalate also demonstrates photothermal-induced advanced oxidation process for degrading organic pollutants, with a Fe2+ free character and wide pH scope in comparison to traditional Fenton reaction. Additionally, the influence of structure on oxygen reduction reaction selectivity for polyoxometalate is clarified in this work.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Review Environmental Sciences

Carbonaceous cathode materials for electro-Fenton technology: Mechanism, kinetics, recent advances, opportunities and challenges

Keerthi M. Nair et al.

Summary: The EF technique has gained attention for its efficiency in degrading organic pollutants, with carbonaceous cathode materials playing a key role in generating H2O2 and hydroxyl radicals over a wide pH range.

CHEMOSPHERE (2021)

Article Nanoscience & Nanotechnology

Efficient Electrochemical Production of H2O2 on Hollow N-Doped Carbon Nanospheres with Abundant Micropores

Yezhou Hu et al.

Summary: The study presented an efficient strategy for onsite H2O2 generation under ambient conditions using hollow N-doped carbon spheres (HNCS) with abundant micropores prepared through a template-directed method. The selectivity of HNCS reached around 91.9% at 0.7 V (vs RHE), and the output for H2O2 production was up to 618.5 mmol g(catalyst)(-1) h(-1) in 0.1 M KOH solution, showing enhanced performance attributed to the hollow structure and heteroatom/defect/pore incorporation. This strategy could guide the design of efficient carbon-based materials for improved 2e(-) ORR.

ACS APPLIED MATERIALS & INTERFACES (2021)

Article Nanoscience & Nanotechnology

N, P-Codoped Graphene Dots Supported on N-Doped 3D Graphene as Metal-Free Catalysts for Oxygen Reduction

Xin Tong et al.

Summary: Nitrogen and phosphorus-codoped graphene dots supported on nitrogen-doped three-dimensional graphene were synthesized by freezing-annealing process, serving as a metal-free catalyst for oxygen reduction reaction. The catalyst exhibited excellent ORR activity, higher tolerance to methanol, and better stability compared to commercial Pt/C, indicating the potential for various applications.

ACS APPLIED MATERIALS & INTERFACES (2021)

Article Chemistry, Physical

Petal-like N, O-codoped carbon nanosheets as Mott-Schottky nanoreactors in electrodes of Zn-Air batteries and supercapacitors

Jiashi Wang et al.

Summary: In this study, monoatomic Fe-N-C sites anchored on petal-like N, O-codoped carbon nanosheets were prepared and selected as Mott-Schottky nanoreactors, showing excellent electrocatalytic activity in ORR. The electron transport and mass transfer at the heterojunction interface between the nanosheets and Fe-N-C active sites were thoroughly investigated, providing insights into the correlation between ORR activity and work functions of doped mesoporous carbon materials.

CARBON (2021)

Review Chemistry, Physical

Carbon-based single atom catalysts for tailoring the ORR pathway: a concise review

Jinwen Hu et al.

Summary: Carbon-based single-atom catalysts (C-SACs) have shown significant advantages in the oxygen reduction reaction (ORR) through structure modulation and dual active site synergistic catalysis to enhance catalytic selectivity and activity. Future directions include overcoming challenges in C-SACs for the ORR and promoting their industrialization.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

Review Chemistry, Multidisciplinary

Carbon-based metal-free electrocatalysts: from oxygen reduction to multifunctional electrocatalysis

Chuangang Hu et al.

Summary: Since the discovery of N-doped carbon nanotubes as the first carbon-based metal-free electrocatalyst for oxygen reduction reaction in 2009, C-MFECs have shown multifunctional electrocatalytic activities for various reactions. While some C-MFECs have demonstrated comparable or superior performance to those based on noble metals, further research and development are required for practical applications in energy conversion and storage. The structure-property relationship and mechanistic understanding of C-MFECs, along with current challenges and future perspectives, are key areas of focus for advancing this field.

CHEMICAL SOCIETY REVIEWS (2021)

Review Chemistry, Multidisciplinary

Heteroatom-doped carbon-based oxygen reduction electrocatalysts with tailored four-electron and two-electron selectivity

Jinwoo Woo et al.

Summary: This review discusses the significance of oxygen reduction reaction and introduces heteroatom-doped carbon-based electrocatalysts as promising alternatives to PGM catalysts. It also highlights catalyst design strategies that promote 4e(-) or 2e(-) ORR activity.

CHEMICAL COMMUNICATIONS (2021)

Article Chemistry, Applied

Regulating carbon work function to boost electrocatalytic activity for the oxygen reduction reaction

Yazhi Cai et al.

Summary: The study focused on the electronic regulation of carbon by using cesium to improve the electrocatalytic performance of oxygen reduction reactions.

CHINESE JOURNAL OF CATALYSIS (2021)

Article Chemistry, Multidisciplinary

N,F-Codoped Carbon Nanocages: An Efficient Electrocatalyst for Hydrogen Peroxide Electroproduction in Alkaline and Acidic Solutions

Nan Jia et al.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2020)

Article Chemistry, Multidisciplinary

Hollow Carbon Sphere Nanoreactors Loaded with PdCu Nanoparticles: Void-Confinement Effects in Liquid-Phase Hydrogenations

Chao Dong et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

Article Chemistry, Physical

Preparation of N, S co-decorated carbon supported iron species for oxygen reduction and zinc air batteries

Qiuhua Wu et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2020)

Article Chemistry, Multidisciplinary

Amorphous Nanocages of Cu-Ni-Fe Hydr(oxy)oxide Prepared by Photocorrosion For Highly Efficient Oxygen Evolution

Zhi Cai et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

Article Chemistry, Physical

Multiple heteroatom-doped few-layer carbons for the electrochemical oxygen reduction reaction

Baobing Huang et al.

JOURNAL OF MATERIALS CHEMISTRY A (2018)

Article Chemistry, Analytical

N-, P- and S-tridoped graphene as metal-free electrocatalyst for oxygen reduction reaction

Shuo Dou et al.

JOURNAL OF ELECTROANALYTICAL CHEMISTRY (2015)

Article Chemistry, Multidisciplinary

Intrinsic Relationship between Enhanced Oxygen Reduction Reaction Activity and Nanoscale Work Function of Doped Carbons

Jae Yeong Cheon et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2014)

Article Chemistry, Multidisciplinary

Exploration of the active center structure of nitrogen-doped graphene-based catalysts for oxygen reduction reaction

Linfei Lai et al.

ENERGY & ENVIRONMENTAL SCIENCE (2012)

Article Chemistry, Multidisciplinary

Functionalized Graphene for High-Performance Two-Dimensional Spintronics Devices

Linze Li et al.

ACS NANO (2011)

Article Chemistry, Multidisciplinary

High oxygen-reduction activity and durability of nitrogen-doped graphene

Dongsheng Geng et al.

ENERGY & ENVIRONMENTAL SCIENCE (2011)

Article Materials Science, Multidisciplinary

Ab initio investigations of optical properties of the high-pressure phases of ZnO

J Sun et al.

PHYSICAL REVIEW B (2005)