Publications related to Nanostructured NaFeS2 as a cost-effective and robust electrocatalyst for hydrogen and oxygen evolution with reduced overpotentials

Related publications (19)

Anion Exchange Membrane Water Electrolysis at 10 A ⋅ cm−2 Over 800 Hours

Andrit Allushi, Xile Hu, Wenchao Ma, Ariana Serban, Yiwei Zheng

Anion exchange membrane water electrolyzer (AEMWE) is a potentially cost-effective technology for green hydrogen production. Although the normal current densities of AEMWEs are below 3 A ⋅ cm−2, operating them at higher current densities represents an effi ...

Wiley-VCH Verlag GmbH2025

Unveiling the Roles of Pt and CeO2 during Solvent-Free Amide Hydrogenation Utilizing Operando Photoelectron Photoionization Coincidence Spectroscopy

Paul Joseph Dyson, Xinbang Wu, Roland Christopher Turnell-Ritson, Jan Romano de Gea, Rosemarie Janet Somerville

The hydrogenation of amides to amines is an important reaction in the synthesis of building blocks in organic chemistry. However, the solvent-free hydrogenation of amides (requiring heterogeneous catalysts and high reaction temperatures) is challenging, wi ...

American Chemical Society (ACS)2025

Low-temperature thermite reaction to form oxygen vacancies in metal-oxide semiconductors: A case study of photoelectrochemical cells

Michael Graetzel, Kevin Sivula, Likai Zheng

The formation of oxygen vacancies (Vö) in n-type semiconductors is a key strategy for improving the performance of metal-oxide-based photoanodes. Whereas Vö has traditionally been created by gas- or liquid-phase treatments, here we report a solid-state red ...

2025

Dynamics of the charge transfer to solvent process in aqueous iodide

Majed Chergui, Alfredo Pasquarello, Jinggang Lan

Charge-transfer-to-solvent states in aqueous halides are ideal systems for studying the electron-transfer dynamics to the solvent involving a complex interplay between electronic excitation and solvent polarization. Despite extensive experimental investiga ...

Nature Portfolio2024

Spin-Control in Electrocatalysis for Clean Energy

Magalí Alejandra Lingenfelder, Martina Lihter, Yunchang Liang

A sustainable future demands a successful transition from a carbon energy-dependent economy towards renewable energy schemes, many of which ultimately rely on the development of efficient electrocatalysis that either converts chemical energy into electrici ...

2022

Cobalt phosphide nanowires with adjustable iridium, realizing excellent bifunctional activity for acidic water splitting

Yun Tong, Pengzuo Chen

The exploration of highly active bifunctional electrocatalysts for acidic electrochemical water splitting has attracted wide attention due to their importance in polymer electrolyte membrane (PEM) electrolyzers. However, existing catalysts normally suffer ...

ROYAL SOC CHEMISTRY2021

Investigating Tetrel-Based Neutral Frustrated Lewis Pairs for Hydrogen Activation

Shubhajit Das

Tetrel Lewis acids are a prospective alternative to commonly employed neutral boranes in frustrated Lewis pair (FLP) chemistry. While cationic tetrylium Lewis acids, being isolobal and iso(valence)electronic, are a natural replacement to boranes, neutral t ...

AMER CHEMICAL SOC2021

Evidence of Large Polarons in Photoemission Band Mapping of the Perovskite Semiconductor CsPbBr3

Matthias Wolf, Majed Chergui, Nicola Marzari, Marco Grioni, Alberto Crepaldi, Michele Puppin, Nicola Colonna, Gianmarco Gatti, Serhii Polishchuk, Riccardo De Gennaro, Thomas Roland Barillot

Lead-halide perovskite (LHP) semiconductors are emergent optoelectronic materials with outstanding transport properties which are not yet fully understood. We find signatures of large polaron formation in the electronic structure of the inorganic LHP CsPbB ...

AMER PHYSICAL SOC2020

Nature of native atomic defects in ZrTe5 and their impact on the low-energy electronic structure

Helmuth Berger, Oleg Yazyev, Ana Akrap, Shengnan Zhang

Over the past decades, investigations of the anomalous low-energy electronic properties of ZrTe5 have reached a wide array of conclusions. An open question is the growth method's impact on the stoichiometry of ZrTe5 samples, especially given the very small ...

AMER PHYSICAL SOC2020

Linking Morphology and Multi-Physical Transport in Structured Electrodes

Silvan Suter

Motivated to advance the renewable energy production and diversify the technologies for storable energy carriers, my work is concentrated on the characterization and the optimization of electrode morphologies applicable in photoelectrochemical water-splitt ...

EPFL2019

Capillary flow device for bio-fluid collection with semiconductor sensors

Mihai Adrian Ionescu, Francesco Bellando, Hoël Maxime Guérin, Erick Antonio Garcia Cordero

An on-body wearable bio-fluid collection and sensing device including an interface or interface surface comprising at least one biocompatible material for contacting a bodily part; at least one inlet for receiving the bio-fluid, at least one outlet for eva ...

2018

Fast real time and quantitative gas analysis method for the investigation of the CO2 reduction reaction mechanism

Andreas Züttel, Wen Luo, Robin Tobias Andreas Mutschler, Emanuele Moioli

We present a new fast real time and quantitative gas analysis method by means of mass spectrometry (MS), which has approximately an order of magnitude faster sampling rate in comparison with a traditional gas chromatography. The method is presented and dis ...

AMER INST PHYSICS2018

Transition metal clusters on h-BN/Rh(111) : surface interaction and catalytic activity

Hamed Achour

The main aim of this dissertation is to study the catalytic aspects of very small transition metal clusters supported on h-BN/Rh(111). The catalytic reactions of interest were ammonia synthesis and CO oxidation on mass selected and soft landed iron and pla ...

EPFL2017

Performance of van der Waals Corrected Functionals for Guest Adsorption in the M-2(dobdc) Metal-Organic Frameworks

Berend Smit

Small-molecule binding in metal-organic frameworks (MOFs) can be accurately studied both experimentally and computationally, provided the proper tools are employed. Herein, we compare and contrast properties associated with guest binding by means of densit ...

American Chemical Society2017

Techno-economic modeling and optimization of solar-driven high-temperature electrolysis systems

Sophia Haussener, Meng Lin

We present a techno-economic analysis of solar-driven hightemperature electrolysis systems used for the production of hydrogen and synthesis gas. We consider different strategies for the incorporation of solar energy, distinguished by the use of differing ...

Pergamon-Elsevier Science Ltd2017

Nitrogen reduction and functionalization by a multimetallic uranium nitride complex

Rosario Scopelliti, Marinella Mazzanti, Ivica Zivkovic, Lucile Sylvie Danielle Chatelain, Marta Falcone

Molecular nitrogen (N-2) is cheap and widely available, but its unreactive nature is a challenge when attempting to functionalize it under mild conditions with other widely available substrates (such as carbon monoxide, CO) to produce value-added compounds ...

2017

Solution-processed two-dimensional transition metal dichalcogenides for solar energy conversion

Xiaoyun Yu

The layered semiconducting transition metal dichalcogenides (TMDs), such as MoS2, WS2, MoSe2, and WSe2, are promising light absorbers for solar energy conversion applications due to their superior optoelectronic properties and chemical stability, however s ...

EPFL2017

All-Vanadium Dual Circuit Redox Flow Battery for Renewable Hydrogen Generation and Desulfurisation

Hubert Girault, Pekka Eero Peljo, Heron Vrubel, Frédéric Gumy, Véronique Amstutz, Kathryn Ellen Toghill, Christopher Raymond Dennison

An all-vanadium dual circuit redox flow battery is an electrochemical energy storage system capable to function as a conventional battery, but also to produce hydrogen and perform desulfurization when surplus of electricity is available by chemical dischar ...

Royal Society of Chemistry2016

Nuclear Quantum Effects in H+ and OH- Diffusion along Confined Water Wires

Michele Ceriotti, Mariana Rossi Carvalho

The diffusion of protons and hydroxide ions along water wires provides an efficient mechanism for charge transport that is exploited by biological membrane channels and shows promise for technological applications such as fuel cells. However, what is lacki ...

Amer Chemical Soc2016