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Effective regulation of the morphology of transition metal spinel structures is crucial for creating efficient and stable bifunctional catalysts for electrocatalysis of water. In this work, micro-flower NiCo2O4 (F-NCO) assembled by…

Chemical Physics · Physics 2024-03-27 Yujie Wang , Yan Duan , Yuwen Chen , Man Zhang , Yuchen Wang , Bin Liu , Xiaodie Zhang , Yutong Zhang , Kai Yan

Electrochemical water electrolysis, which produces clean energy carriers to mitigate carbon emissions, lacks suitable, low-cost electrodes for efficient oxygen evolution reaction (OER) in alkaline water splitting. To address this challenge,…

Polar perovskite oxide surfaces are subject to structural reconstruction as a possible stabilisation mechanisms, which changes the surface structure and hence the surface chemistry. To investigate this effect, we study the oxygen evolution…

Materials Science · Physics 2019-04-08 Hassan Ouhbi , Ulrich Aschauer

The discovery and optimization of high-performance materials is the basis for advancing energy conversion technologies. To understand composition-property relationships, all available data sources should be leveraged: experimental results,…

Materials Science · Physics 2025-03-03 Lei Zhang , Markus Stricker

The experimental exfoliation of layered group-IV monochalcogenides --semiconductors isostructural to black phosphorus-- using processes similar to those followed in the production of graphene or phosphorene has turned out unsuccessful thus…

Materials Science · Physics 2018-10-26 Salvador Barraza-Lopez , Thaneshwor P. Kaloni

Molecular self-assembly has been extensively used for surface modification of metals and oxides for a variety of applications, including molecular and organic electronics. One of the goals of this research is to learn how the electronic…

Materials Science · Physics 2009-11-13 M. F. Calhoun , J. Sanchez , D. Olaya , M. E. Gershenson , V. Podzorov*

Materials with low work functions are critical for an array of applications requiring the facile removal or efficient transport of electrons through a device. Perovskite oxides are a promising class of materials for finding low work…

Materials Science · Physics 2021-09-07 Tianyu Ma , Ryan Jacobs , John Booske , Dane Morgan

In this work, using a hybrid density functional theory (DFT) based calculation, we propose a new two-dimensional (2D) B-C-N material, $g-B_{3}C_{2}N_{3}$, with the promising prospect of metal-free photocatalysis. A comprehensive…

Materials Science · Physics 2022-07-14 Sreejani Karmakar , Souren Adhikary , Sudipta Dutta

Oxygen loss is one of the common defect types in perovskite oxides whose formation can be caused by a low oxygen background pressure during growth or by straining the thin film. Crystalline BaBiO3-{\delta} thin films are grown by molecular…

Oxygen transport membranes (OTMs), enabling catalytic reaction and gas separation, support crucial chemical engineering processes and decarbonization technologies, but their applications are hindered by limited oxygen permeation fluxes and…

Materials Science · Physics 2026-02-26 Zaichen Xiang , Rui Chen , Shuangyue Wang , Jingjun Qin , Wanyi Zhang , Yucheng Li , Lingyong Zeng , Huixia Luo

Ammonia, a critical chemical fertilizer and a potential hydrogen carrier, can be sustainably synthesized from atmospheric nitrogen and water under ambient conditions through photocatalysis. In this study, high-entropy oxides with d0 and…

Chemical Physics · Physics 2025-08-19 Thanh Tam Nguyen , Jacqueline Hidalgo-Jimenez , Kaveh Edalati

It is proposed that primary nucleation of amorphous microspherulites of hydrated silica in natural proto-precious-opal can be followed by a long range superlattice ordering process by means of electrostatic self-assembly. Necessary…

Materials Science · Physics 2010-01-05 A. M. Stewart , Lewis T. Chadderton , Brian R. Senior

Identifying materials that simultaneously straddle the water redox potentials and possess an intrinsic electric field is crucial for achieving high solar-to-hydrogen (STH) efficiency. Using state-of-the-art first-principles calculations,…

Materials Science · Physics 2026-02-24 Mostafa Torkashvand , Saeedeh Sarabadani Tafreshi , Caterina Cocchi , Surender Kumar

Hydrogen gas is a promising alternative to fossil fuels due to its high energy output and environmentally safe byproducts. Various morphologies of photocatalytic materials have been explored for high-efficiency H$_2$ production, for…

Materials Science · Physics 2025-03-04 Adway Gupta , Arunima Singh

Simple, yet versatile, methods to functionalize graphene flakes with metal (oxide) nanoparticles are in demand, particularly for the development of advanced catalysts. Herein, based on light-induced electrochemistry, a laser-assisted,…

Transition metal oxides are promising candidates for thermoelectric applications, because they are stable at high temperature and because strong electronic correlations can generate large Seebeck coefficients, but their thermoelectric power…

Strongly Correlated Electrons · Physics 2017-06-29 P. Yordanov , P. Wochner , S. Ibrahimkutty , C. Dietl , F. Wrobel , R. Felici , G. Gregori , J. Maier , B. Keimer , H. -U. Habermeier

The self-assembly of a single layer of organic molecules on a substrate is a powerful strategy to modify surfaces and interfacial properties. The detailed interplay of molecule-to-substrate and molecule-molecule interactions are crucial for…

Photocatalytic hydrogen (H2) production and carbon dioxide (CO2) conversion to methane (CH4) are considered promising solutions for reducing CO2 emissions. However, the development of highly active photocatalysts is essential to efficiently…

Materials Science · Physics 2025-10-23 Jacqueline Hidalgo-Jimenez , Taner Akbay , Tatsumi Ishihara , Kaveh Edalati

Newly designed Li-ion battery cathode materials with high capacity and greater flexibility in chemical composition will be critical for the growing electric vehicles market. Cathode structures with cation disorder were once considered…

The current state of the art in direct water splitting in photo-electrochemical cells (PECs) is presented together with: (i) a case study of water splitting using a simple solar cell with the most efficient water splitting electrodes and…