☆ 4.8 Article

Proton reservoirs in polymer photocatalysts for superior H2O2 photosynthesis

ENERGY & ENVIRONMENTAL SCIENCE (2023)

Related references

Note: Only part of the references are listed.

Article Chemistry, Multidisciplinary

Ambient Preparation of Benzoxazine-based Phenolic Resins Enables Long-term Sustainable Photosynthesis of Hydrogen Peroxide

Xinyao Wang et al.

Summary: Rational design of polymer structures at the molecular level leads to improved photocatalysts for sustainable photocatalytic hydrogen peroxide (H2O2) production. The benzoxazine-based m-aminophenol-formaldehyde resin (APFac) polymerized at ambient conditions shows superior H2O2 yield and stability. The benzoxazine structure in APFac plays a crucial role in the photocatalytic activity, with favorable adsorption of oxygen/intermediates and commendable product selectivity, enhancing the reaction kinetics for oxygen reduction.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2023)

Add to Collection

Article Nanoscience & Nanotechnology

Floatable photocatalytic hydrogel nanocomposites for large-scale solar hydrogen production

Wang Hee Lee et al.

Summary: A floatable photocatalytic platform consisting of porous elastomer-hydrogel nanocomposites is designed to address the challenges of solar energy and mass transfer, catalyst instability, and reverse reactions. It achieves efficient hydrogen evolution and demonstrates potential for commercialization in seawater and highly turbid water.

NATURE NANOTECHNOLOGY (2023)

Add to Collection

Article Chemistry, Multidisciplinary

Molecular Level Modulation of Anthraquinone-containing Resorcinol-formaldehyde Resin Photocatalysts for H2O2 Production with Exceeding 1.2 % Efficiency

Chen Zhao et al.

Summary: Designing polymeric photocatalysts at the molecular level to modulate the photogenerated charge behavior is a promising strategy for efficient hydrogen peroxide (H2O2) photosynthesis. In this study, electron-deficient 1,4-dihydroxyanthraquinone (DHAQ) is introduced into the framework of resorcinol-formaldehyde (RF) resin to promote charge separation. H2O2 can be produced via oxygen reduction and water oxidation pathways, and RF-DHAQ exhibits excellent overall photosynthesis of H2O2.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2023)

Add to Collection

Article Chemistry, Multidisciplinary

Molecular engineering of carbon nitrides for overall photosynthesis of H2O2

Jin Ma et al.

Summary: This article discusses the application of carbon nitrides in artificial photocatalysis and emphasizes the importance of understanding the process for rational design and reaction pathways to meet the demand for H 2 O 2. Furthermore, it summarizes the emerging fields of application for photocatalytic H 2 O 2 production.

CHINESE CHEMICAL LETTERS (2023)

Add to Collection

Article Chemistry, Multidisciplinary

Quinone-Amine Polymer Nanoparticles Prepared through Facile Precipitation Polymerization as Ultrafast and Ultralong Cycle Life Cathode Materials for Lithium-Ion Batteries

Yeqing Shi et al.

Summary: Polymer electrode materials often suffer from agglomeration and complicated synthesis processes. This study presents a facile method to synthesize spherical cross-linked quinone-amine polymer nanoparticles, which effectively address the agglomeration issues and exhibit excellent electrochemical performance.

ADVANCED FUNCTIONAL MATERIALS (2022)

Add to Collection

Article Chemistry, Multidisciplinary

Boosting O2 Reduction and H2O Dehydrogenation Kinetics: Surface N-Hydroxymethylation of g-C3N4 Photocatalysts for the Efficient Production of H2O2

Binyao Liu et al.

Summary: The study focuses on surface modification of g-C3N4 photocatalysts for efficient production of H2O2. The modified photocatalysts show over 1280% higher activity compared to pristine ones in pure water system, with impressive solar-to-chemical conversion efficiency. The introduction of -NH-CH2-OH on the g-C3N4 photocatalysts improves the H2O dehydrogenation and O-2 adsorption properties, making the reduction kinetics of O-2 to H2O2 more energetically favorable.

ADVANCED FUNCTIONAL MATERIALS (2022)

Add to Collection

Article Chemistry, Multidisciplinary

Rational Design of Covalent Heptazine Frameworks with Spatially Separated Redox Centers for High-Efficiency Photocatalytic Hydrogen Peroxide Production

Hao Cheng et al.

Summary: This study focuses on designing new covalent heptazine frameworks with spatially separated redox centers for efficient photocatalytic production of H2O2. Both experimental and computational investigations support the critical role of this unique spatial separation feature in enhancing charge separation and achieving efficient H2O2 production. The rationally designed CHFs show a solar-to-chemical conversion efficiency of 0.78% under simulated solar irradiation, surpassing previously reported photocatalytic materials.

ADVANCED MATERIALS (2022)

Add to Collection

Article Chemistry, Multidisciplinary

Unraveling the dual defect sites in graphite carbon nitride for ultra-high photocatalytic H2O2 evolution

Xu Zhang et al.

Summary: Defect engineering modified graphite carbon nitride (g-C3N4) with dual defect sites, -C N groups and N vacancies, has been found to significantly enhance the photocatalytic production of H2O2. The dual defect sites form an electron-rich structure and lead to a more localized charge density distribution, which improves light absorption, carrier separation, selectivity, and activity of H2O2 generation. The N vacancies effectively adsorb and activate O-2, while the -C N groups facilitate the adsorption of H+, synergistically promoting H2O2 generation. The modified g-C3N4 achieved a high H2O2 generation rate and apparent quantum efficiency, surpassing previously reported g-C3N4-based photocatalysts.

ENERGY & ENVIRONMENTAL SCIENCE (2022)

Add to Collection

Article Chemistry, Multidisciplinary

Polarization Engineering of Covalent Triazine Frameworks for Highly Efficient Photosynthesis of Hydrogen Peroxide from Molecular Oxygen and Water

Chongbei Wu et al.

Summary: In this study, a polarization engineering strategy was used to enhance the two-electron oxygen photoreduction to hydrogen peroxide by grafting (thio)urea functional groups onto covalent triazine frameworks. The functionalized framework showed significantly improved charge separation/transport and proton transfer, leading to a substantially higher production rate of hydrogen peroxide compared to the unfunctionalized framework. This approach provides a new direction for the development of efficient metal-free polymer-based photocatalysts.

ADVANCED MATERIALS (2022)

Add to Collection

Article Chemistry, Multidisciplinary

Accelerated Synthesis and Discovery of Covalent Organic Framework Photocatalysts for Hydrogen Peroxide Production

Wei Zhao et al.

Summary: A high-throughput sonochemical synthesis and testing strategy was developed to discover covalent organic frameworks (COFs) for photocatalysis. Among the screened COFs, one showed excellent photocatalytic activity for hydrogen peroxide production, but its activity decreased after long-term testing. The introduction of a two-phase catalytic system greatly enhanced its photostability.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2022)

Add to Collection

Article Multidisciplinary Sciences

Spontaneous exciton dissociation in organic photocatalyst under ambient conditions for highly efficient synthesis of hydrogen peroxide

Huijie Yan et al.

Summary: Researchers have achieved photosynthesis of hydrogen peroxide in real ambient conditions using a conjugated polymeric photocatalyst, with remarkably high efficiency. This efficient photosynthesis allows for solar-to-chemical conversion in a cost-effective and sustainable way, representing an important step towards real applications.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2022)

Add to Collection

Article Chemistry, Multidisciplinary

Piperazine-Linked Metalphthalocyanine Frameworks for Highly Efficient Visible-Light-Driven H2O2 Photosynthesis

Qianjun Zhi et al.

Summary: This study successfully synthesized two new two-dimensional piperazine-linked CoPc-based covalent organic frameworks and further investigated their structure and photocatalytic performance. The experimental results demonstrated that these new materials exhibit excellent photocatalytic activity under visible light irradiation, with CoPc-BTM-COF showing a record-breaking high hydrogen peroxide yield and apparent quantum yield.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2022)

Add to Collection

Article Chemistry, Multidisciplinary

Unraveling the Mechanism on Ultrahigh Efficiency Photocatalytic H2O2 Generation for Dual-Heteroatom Incorporated Polymeric Carbon Nitride

Wei Liu et al.

Summary: In this study, oxygen and potassium dual-heteroatom incorporated polymeric carbon nitride was designed to efficiently generate H2O2. The obtained material exhibited excellent properties in terms of light absorption, charge transfer/separation, oxygen adsorption, and oxygen reduction reaction, leading to high H2O2 production. This work provides valuable insights into the photocatalytic mechanism of H2O2 generation and lays the foundation for the development of highly active photocatalysts for environmental remediation and energy conversion.

ADVANCED FUNCTIONAL MATERIALS (2022)

Add to Collection

Article Chemistry, Multidisciplinary

Extended Conjugation Tuning Carbon Nitride for Non-sacrificial H2O2 Photosynthesis and Hypoxic Tumor Therapy

Jin Ma et al.

Summary: This study reports a C5N2 photocatalyst with a conjugated C=N linkage for selective and efficient non-sacrificial production of H2O2. The photocatalyst exhibits high solar-to-chemical conversion efficiency and the highest activity under hypoxic conditions. Additionally, the study demonstrates the outstanding performance of C5N2 in hypoxic PDT/CDT.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022)

Add to Collection

Article Chemistry, Physical

Highly efficient unitized regenerative hydrogen peroxide cycle cell with ultralow overpotential for renewable energy storage

Jie Yang et al.

Summary: A highly efficient unitized regenerative hydrogen peroxide cycle cell (UR-HPCC) has been developed for renewable energy storage. This cell utilizes a carbon-based platinum group metal-free catalyst as the bifunctional oxygen electrode catalyst, showing high efficiency in oxidation and reduction reactions. Thermodynamic analysis reveals that the UR-HPCC exhibits superior energy efficiency and reversibility compared to conventional unitized regenerative fuel cells.

JOURNAL OF POWER SOURCES (2022)

Add to Collection

Article Chemistry, Multidisciplinary

Linear Conjugated Polymers for Solar-Driven Hydrogen Peroxide Production: The Importance of Catalyst Stability

Lunjie Liu et al.

Summary: Conjugated organic materials have been studied as photocatalysts for solar fuels synthesis, with DE7 polymer discovered as an efficient catalyst for H2O2 production. Focus is needed on improving the photostability and initial catalytic production rates of organic photocatalysts.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

Add to Collection

Article Chemistry, Multidisciplinary

Polythiophene-Doped Resorcinol-Formaldehyde Resin Photocatalysts for Solar-to-Hydrogen Peroxide Energy Conversion

Yasuhiro Shiraishi et al.

Summary: The study reports that RF resin powders doped with P3HT exhibit enhanced photocatalytic activities, leading to increased efficiency in H2O2 generation through enhanced charge separation.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

Add to Collection

Article Multidisciplinary Sciences

Mechanistic analysis of multiple processes controlling solar-driven H2O2 synthesis using engineered polymeric carbon nitride

Yubao Zhao et al.

Summary: The use of sodium cyanaminate moiety in polymeric carbon nitride frameworks enhances solar-driven H2O2 production by promoting photon absorption, altering the energy landscape, improving charge separation efficiency, enhancing surface adsorption, and creating selective oxygen reduction reaction surface-active sites. An electronic coupling interaction between O-2 and the surface is experimentally substantiated to boost the population and prolong the lifetime of active shallow-trapped electrons. This renewable approach to chemical synthesis provides a sustainable and environmentally friendly method for H2O2 production.

NATURE COMMUNICATIONS (2021)

Add to Collection

Article Multidisciplinary Sciences

A solar-to-chemical conversion efficiency up to 0.26% achieved in ambient conditions

Yu-Xin Ye et al.

Summary: By mimicking the NADP-mediated photosynthetic processes in green plants, the current study has achieved progress in improving charge carrier separation efficiency and oxygen reduction efficiency, realizing efficient conversion of water and oxygen into hydrogen peroxide. The solar-to-chemical conversion efficiency in this artificial photosynthesis is significantly higher than that in nature, providing a strategy for efficient solar-to-chemical conversion in the future.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2021)

Add to Collection

Article Chemistry, Physical

Atomically dispersed antimony on carbon nitride for the artificial photosynthesis of hydrogen peroxide

Zhenyuan Teng et al.

Summary: Artificial photosynthesis is a promising strategy for producing environmentally friendly oxidants and clean fuels. A carbon nitride-supported antimony single atom photocatalyst has been developed for efficient synthesis of H2O2 under visible light irradiation.

NATURE CATALYSIS (2021)

Add to Collection

Article Chemistry, Multidisciplinary

Solar photoelectrochemical synthesis of electrolyte-free H2O2 aqueous solution without needing electrical bias and H2

Tae Hwa Jeon et al.

Summary: The study demonstrated the direct synthesis of an electrolyte-free aqueous solution of pure H2O2 using a photoelectrochemical system with solid polymer electrolyte and engineered electrodes, achieving continuous H2O2 synthesis over 100 hours. The system produced around 80 mM of H2O2 (electrolyte-free) with a faradaic efficiency of approximately 90%, setting a new record for pure H2O2 concentration obtained using PEC systems.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

Add to Collection

Article Chemistry, Physical

Simultaneously Tuning Charge Separation and Oxygen Reduction Pathway on Graphitic Carbon Nitride by Polyethylenimine for Boosted Photocatalytic Hydrogen Peroxide Production

Xiangkang Zeng et al.

ACS CATALYSIS (2020)

Add to Collection

Article Multidisciplinary Sciences

Spatially separating redox centers on 2D carbon nitride with cobalt single atom for photocatalytic H2O2 production

Chiheng Chu et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2020)

Add to Collection

Article Chemistry, Multidisciplinary

Efficient hydrogen peroxide synthesis by metal-free polyterthiophene via photoelectrocatalytic dioxygen reduction

Wenjun Fan et al.

ENERGY & ENVIRONMENTAL SCIENCE (2020)

Add to Collection

Article Chemistry, Physical

Resorcinol-formaldehyde resins as metal-free semiconductor photocatalysts for solar-to-hydrogen peroxide energy conversion

Yasuhiro Shiraishi et al.

NATURE MATERIALS (2019)

Add to Collection

Review Chemistry, Multidisciplinary

Electrochemical synthesis of hydrogen peroxide from water and oxygen

Samuel C. Perry et al.

NATURE REVIEWS CHEMISTRY (2019)

Add to Collection

Article Chemistry, Multidisciplinary

Crafting Mussel-Inspired Metal Nanoparticle-Decorated Ultrathin Graphitic Carbon Nitride for the Degradation of Chemical Pollutants and Production of Chemical Resources

Jingsheng Cai et al.

ADVANCED MATERIALS (2019)

Add to Collection

Article Chemistry, Multidisciplinary

A H-bond stabilized quinone electrode material for Li-organic batteries: the strength of weak bonds

Louis Sieuw et al.

CHEMICAL SCIENCE (2019)

Add to Collection

Article Chemistry, Multidisciplinary

Adsorbed Intermediates in Oxygen Reduction on Platinum Nanoparticles Observed by In Situ IR Spectroscopy

Simantini Nayak et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2018)

Add to Collection

Article Chemistry, Multidisciplinary

Efficient visible-light-driven selective oxygen reduction to hydrogen peroxide by oxygen-enriched graphitic carbon nitride polymers

Zhen Wei et al.

ENERGY & ENVIRONMENTAL SCIENCE (2018)

Add to Collection

Article Chemistry, Multidisciplinary

Acid-Promoter-Free Ethylene Methoxycarbonylation over Ru-Clusters/Ceria: The Catalysis of Interfacial Lewis Acid-Base Pair

Jinghua An et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2018)

Add to Collection

Article Chemistry, Physical

Microscopic Electrode Processes in the Four-Electron Oxygen Reduction on Highly Active Carbon-Based Electrocatalysts

Ken Sakaushi et al.

ACS CATALYSIS (2018)

Add to Collection

Article Chemistry, Physical

Proton-Coupled Electron Transfer from Water to a Model Heptazine-Based Molecular Photocatalyst

Emily J. Rabe et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2018)

Add to Collection

Review Chemistry, Multidisciplinary

Spinels: Controlled Preparation, Oxygen Reduction/Evolution Reaction Application, and Beyond

Qing Zhao et al.

CHEMICAL REVIEWS (2017)

Add to Collection

Article Chemistry, Multidisciplinary

Single-Site Active Cobalt-Based Photocatalyst with a Long Carrier Lifetime for Spontaneous Overall Water Splitting

Wei Liu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2017)

Add to Collection

Article Chemistry, Multidisciplinary

Carbon Nitride-Aromatic Diimide-Graphene Nanohybrids: Metal-Free Photocatalysts for Solar-to-Hydrogen Peroxide Energy Conversion with 0.2% Efficiency

Yusuke Kofuji et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2016)

Add to Collection

Article Chemistry, Physical

Essential Roles of Proton Transfer in Photocatalytic Redox Reactions

Chuncheng Chen et al.

CHEMCATCHEM (2015)

Add to Collection

Article Chemistry, Multidisciplinary

Direct Four-Electron Reduction of O2 to H2O on TiO2 Surfaces by Pendant Proton Relay

Hua Sheng et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2013)

Add to Collection

Review Chemistry, Multidisciplinary

Advanced Nanoarchitectures for Solar Photocatalytic Applications

Anna Kubacka et al.

CHEMICAL REVIEWS (2012)

Add to Collection

Article Chemistry, Multidisciplinary

Mechanism of photocatalytic water splitting in TiO2.: Reaction of water with photoholes, importance of charge carrier dynamics, and evidence for four-hole chemistry

Junwang Tang et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2008)

Add to Collection

Review Chemistry, Multidisciplinary

Role of proton-coupled electron transfer in O-O bond activation

Joel Rosenthal et al.

ACCOUNTS OF CHEMICAL RESEARCH (2007)

Add to Collection

Review Chemistry, Multidisciplinary

Applications of transition-metal catalysts to textile and wood-pulp bleaching

R Hage et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2006)

Add to Collection

Review Chemistry, Multidisciplinary

Hydrogen peroxide synthesis: An outlook beyond the anthraquinone process

Jose M. Campos-Martin et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2006)

Add to Collection

Article Engineering, Chemical

Advanced oxidation processes for wastewater treatment:: Optimization of UV/H2O2 process through a statistical technique

CBC Raj et al.

CHEMICAL ENGINEERING SCIENCE (2005)

Add to Collection

Article Chemistry, Multidisciplinary

Electrosynthesis of hydrogen peroxide in room temperature ionic liquids and in situ epoxidation of alkenes

MCY Tang et al.

CHEMICAL COMMUNICATIONS (2005)

Add to Collection

Letter Chemistry, Physical

ESR signal of superoxide radical anion adsorbed on TiO2 generated at room temperature

JH Yu et al.

JOURNAL OF PHYSICAL CHEMISTRY B (2004)

Add to Collection

Article Engineering, Environmental

Evaluation of the treatment performance of a multistage ozone/hydrogen peroxide process by decomposition by-products

K Kosaka et al.

WATER RESEARCH (2001)

Add to Collection

© Peeref 2019-2024. All rights reserved.