4.8 Article

Single-atomic-site platinum steers photogenerated charge carrier lifetime of hematite nanoflakes for photoelectrochemical water splitting

Related references

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

A single-Pt-atom-on-Ru-nanoparticle electrocatalyst for CO-resilient methanol oxidation

Agus R. Poerwoprajitno et al.

Summary: Single Pt atom catalysts with high exposure are key targets to enhance electrocatalytic activity, and PtRu alloy nanoparticles are the most active catalysts for the methanol oxidation reaction. This study demonstrates a process to create single-Pt-atom-on-Ru catalysts by growing and spreading Pt islands on Ru branched nanoparticles. The formation of a stable single atom structure is driven by the formation of strong Pt-Ru bonds and the lowering of the surface energy of the Pt islands, resulting in a high current density and mass activity for the methanol oxidation reaction over time.

NATURE CATALYSIS (2022)

Article Multidisciplinary Sciences

Floating perovskite-BiVO4 devices for scalable solar fuel production

Virgil Andrei et al.

Summary: Photocathodes deposited on thin and flexible substrates achieved high activity for hydrogen production and high selectivity for CO2 reduction. The corresponding lightweight perovskite-BiVO4 PEC devices demonstrated promising solar-to-fuel efficiencies and potential for scalability. The use of lightweight reactors and the ability to float in water make them suitable for open-water applications.

NATURE (2022)

Article Chemistry, Multidisciplinary

2D Bismuthene as a Functional Interlayer between BiVO4 and NiFeOOH for Enhanced Oxygen-Evolution Photoanodes

Junyi Cui et al.

Summary: BiVO4 has attracted attention as oxygen-evolution photoanodes, but its performance is hindered by electron-hole recombination. In this study, partially oxidized two-dimensional bismuthene is developed as an interlayer between BiVO4 and NiFeOOH co-catalyst to improve the performance of the photoanode. The bismuthene increases the density of oxygen vacancies, promotes the oxygen evolution reaction, and enhances charge extraction, leading to a significantly improved photocurrent.

ADVANCED FUNCTIONAL MATERIALS (2022)

Article Chemistry, Multidisciplinary

Engineering Single-Atomic Ni-N4-O Sites on Semiconductor Photoanodes for High-Performance Photoelectrochemical Water Splitting

Xiaomeng Zhang et al.

Summary: A versatile coupling strategy was developed to enhance the performance of photoelectrochemical water splitting by introducing Ni-N-4-O sites. The construction of single-atomic Ni-N-4-O moiety facilitated hole transfer, decreased free energy barriers, and accelerated reaction kinetics, resulting in outstanding long-term photostability.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

Article Chemistry, Physical

Spray Synthesis of CuFeO2 Photocathodes and In-Operando Assessment of Charge Carrier Recombination

Florent Boudoire et al.

Summary: A facile and scalable deposition method based on aerosol-assisted chemical vapor deposition of CuFeO2 photocathodes was reported, with larger grain size found to be beneficial for photoelectrochemical operation. Extensive photo-electrochemical testing revealed solar photocurrent densities up to 2.5 mA cm(-2) for these photocathodes under non-sacrificial operation conditions.

JOURNAL OF PHYSICAL CHEMISTRY C (2021)

Article Chemistry, Multidisciplinary

Identifying Reactive Sites and Surface Traps in Chalcopyrite Photocathodes

Yongpeng Liu et al.

Summary: Analyzing the atomic nature of reactive sites and trap states is crucial for adjusting catalysis and reducing surface voltage losses. Combining spectroelectrochemical and computational methods, the study investigated a model photocathode from the chalcopyrite family, revealing that voltage losses are related to traps induced by surface Ga and In vacancies, and catalysis occurs at specific sites. Avoiding the formation of Ga and In vacancies is essential for achieving high activity.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Chemistry, Multidisciplinary

Unassisted Photoelectrochemical Cell with Multimediator Modulation for Solar Water Splitting Exceeding 4% Solar-to-Hydrogen Efficiency

Sheng Ye et al.

Summary: This study achieved efficient unassisted overall water splitting by using a photoelectrochemical platform with multimediator modulation, increasing solar energy conversion efficiency. By assembling an integrated system composed of inorganic oxide-based photoanode and organic polymer-based photocathode, the efficiency of solar-to-hydrogen conversion was successfully improved.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

Article Multidisciplinary Sciences

NiFeOx decorated Ge-hematite/perovskite for an efficient water splitting system

Ki-Yong Yoon et al.

Summary: The study investigates how tin diffusion affects overall photoelectrochemical performance, revealing that germanium is a better dopant for enhancing hematite photoanode performance. A new doping method using germanium suppresses tin diffusion, significantly improving the performance of hematite photoanodes.

NATURE COMMUNICATIONS (2021)

Article Energy & Fuels

Pt/Fe2O3 with Pt-Fe pair sites as a catalyst for oxygen reduction with ultralow Pt loading

Ruijie Gao et al.

Summary: The study focuses on loading platinum onto α-Fe2O3 to create a highly active and stable catalyst with dispersed Pt-Fe pair sites, which exhibits excellent catalytic performance and cycling stability in alkaline conditions.

NATURE ENERGY (2021)

Article Chemistry, Multidisciplinary

Towards Long-Term Photostability of Nickel Hydroxide/BiVO4 Photoanodes for Oxygen Evolution Catalysts via In Situ Catalyst Tuning

Rui-Ting Gao et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

Article Multidisciplinary Sciences

Cu2O photocathodes with band-tail states assisted hole transport for standalone solar water splitting

Linfeng Pan et al.

NATURE COMMUNICATIONS (2020)

Article Chemistry, Multidisciplinary

Stable Cocatalyst-Free BiVO4Photoanodes with Passivated Surface States for Photocorrosion Inhibition

Rui-Ting Gao et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

Review Chemistry, Physical

Intensity-Modulated Photocurrent Spectroscopy and Its Application to Perovskite Solar Cells

Sandheep Ravishankar et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2019)

Review Chemistry, Multidisciplinary

Plasmon-Enhanced Photoelectrochemical Water Splitting for Efficient Renewable Energy Storage

Luca Mascaretti et al.

ADVANCED MATERIALS (2019)

Article Chemistry, Physical

Charge carrier dynamics in tantalum oxide overlayered and tantalum doped hematite photoanodes

Tero-Petri Ruoko et al.

JOURNAL OF MATERIALS CHEMISTRY A (2019)

Article Chemistry, Multidisciplinary

Why Tin-Doping Enhances the Efficiency of Hematite Photoanodes for Water Splitting-The Full Picture

Alexander G. Hufnagel et al.

ADVANCED FUNCTIONAL MATERIALS (2018)

Article Chemistry, Physical

Enhancing Charge Carrier Lifetime in Metal Oxide Photoelectrodes through Mild Hydrogen Treatment

Ji-Wook Jang et al.

ADVANCED ENERGY MATERIALS (2017)

Article Chemistry, Multidisciplinary

Solar-Driven Water Oxidation and Decoupled Hydrogen Production Mediated by an Electron-Coupled-Proton Buffer

Leanne G. Bloor et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2016)

Article Chemistry, Multidisciplinary

What Limits the Performance of Ta3N5 for Solar Water Splitting?

Yumin He et al.

Article Chemistry, Physical

Combining Mesoporosity and Ti-Doping in Hematite Films for Water Splitting

Caroline Toussaint et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2015)

Article Chemistry, Multidisciplinary

Molten o-H3PO4: A New Electrolyte for the Anodic Synthesis of Self-Organized Oxide Structures - WO3 Nanochannel Layers and Others

Marco Altomare et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2015)

Article Chemistry, Multidisciplinary

Enhanced Water Splitting at Thin Film Tungsten Trioxide Photoanodes Bearing Plasmonic Gold-Polyoxometalate Particles

Renata Solarska et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2014)

Article Chemistry, Physical

Visible Light Driven Photoelectrochemical Water Oxidation by Zn- and Ti-Doped Hematite Nanostructures

Naghmehalsadat Mirbagheri et al.

ACS CATALYSIS (2014)

Article Chemistry, Physical

Effect of La-Doping on optical bandgap and photoelectrochemical performance of hematite nanostructures

Ning Li et al.

JOURNAL OF MATERIALS CHEMISTRY A (2014)

Article Chemistry, Multidisciplinary

Facile synthesis of carbon-coated hematite nanostructures for solar water splitting

Jiujun Deng et al.

ENERGY & ENVIRONMENTAL SCIENCE (2013)

Article Chemistry, Physical

The PYXAID Program for Non-Adiabatic Molecular Dynamics in Condensed Matter Systems

Alexey V. Akimov et al.

JOURNAL OF CHEMICAL THEORY AND COMPUTATION (2013)

Article Chemistry, Multidisciplinary

Physical and photoelectrochemical properties of Zr-doped hematite nanorod arrays

Shaohua Shen et al.

NANOSCALE (2013)

Article Chemistry, Multidisciplinary

Charge carrier trapping, recombination and transfer in hematite (α-Fe2O3) water splitting photoanodes

Monica Barroso et al.

CHEMICAL SCIENCE (2013)

Review Chemistry, Inorganic & Nuclear

Light-driven water oxidation for solar fuels

Karin J. Young et al.

COORDINATION CHEMISTRY REVIEWS (2012)

Article Chemistry, Multidisciplinary

Resistance and polarization losses in aqueous buffer-membrane electrolytes for water-splitting photoelectrochemical cells

Emil A. Hernandez-Pagan et al.

ENERGY & ENVIRONMENTAL SCIENCE (2012)

Article Chemistry, Physical

Decoherence-induced surface hopping

Heather M. Jaeger et al.

JOURNAL OF CHEMICAL PHYSICS (2012)

Article Chemistry, Multidisciplinary

Transparent, Conducting Nb:SnO2 for Host-Guest Photoelectrochemistry

Morgan Stefik et al.

NANO LETTERS (2012)

Article Multidisciplinary Sciences

Dynamics of photogenerated holes in surface modified α-Fe2O3 photoanodes for solar water splitting

Monica Barroso et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2012)

Review Chemistry, Multidisciplinary

Solar Water Splitting: Progress Using Hematite (alpha-Fe2O3) Photoelectrodes

Kevin Sivula et al.

CHEMSUSCHEM (2011)

Article Chemistry, Multidisciplinary

Oxide Nanotubes on Ti-Ru Alloys: Strongly Enhanced and Stable Photoelectrochemical Activity for Water Splitting

Poulomi Roy et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2011)

Article Chemistry, Multidisciplinary

Electron Transport in Pure and Doped Hematite

Peilin Liao et al.

NANO LETTERS (2011)

Article Chemistry, Multidisciplinary

Sn-Doped Hematite Nanostructures for Photoelectrochemical Water Splitting

Yichuan Ling et al.

NANO LETTERS (2011)

Article Chemistry, Multidisciplinary

Light-Induced Water Splitting with Hematite: Improved Nanostructure and Iridium Oxide Catalysis

S. David Tilley et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2010)

Article Chemistry, Multidisciplinary

Photoelectrochemical Water Splitting with Mesoporous Hematite Prepared by a Solution-Based Colloidal Approach

Kevin Sivula et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2010)