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Efficient artificial photosynthesis systems are currently realized as catalyst- and surfacefunctionalized photovoltaic tandem- and triple-junction devices, enabling photoelectrochemical (PEC) water oxidation while simultaneously recycling…

Hydroxide ion transport in anion-exchange membranes fundamentally limits the efficiency of alkaline water electrolysis for green hydrogen production, yet the atomic-scale transport mechanisms remain poorly understood due to the…

Picosecond dynamics of hydrated electrons and hydroxyl radicals generated in 200 nm photodissociation of aqueous hydroxide and 400 nm (3-photon) ionization of water in concentrated alkaline solutions were obtained. No deprotonation of…

Water, the ubiquitous solvent, is also prominent in forming liquid solid interfaces with catalytically active surfaces, in particular with promoted oxides. We study the complex interface of a gold nanocatalyst, pinned by an F center on…

Materials Science · Physics 2013-03-22 Matteo Farnesi Camellone , Dominik Marx

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

An effective method for increasing the electrocatalytic activity of metallic glasses (MGs) in hydrogen evolution reaction (HER) is reported. This method applies a noble metal hybridization strategy to design a highly reactive catalyst for…

Materials Science · Physics 2022-03-14 Peng Zou , Bowen Zang , Lijian Song , Juntao Huo , Jun-Qiang Wang

The aim of this paper is to develop a stability theory and a numerical model for the three density-stratified electrically conductive liquid layers. Using regular perturbation methods to reduce the full 3d problem to the shallow layer…

Fluid Dynamics · Physics 2018-08-29 A. Tucs , V. Bojarevics , K. Pericleous

Development of cost-effective hydrogen evolution reaction (HER) catalysts with outstanding catalytic activity, replacing cost-prohibitive noble metal-based catalysts, is critical for practical green hydrogen production. A popular strategy…

Molecular electronics is a fascinating area of research with the ability to tune device properties by a chemical tailoring of organic molecules. However, molecular electronics devices often suffer from dispersion and lack of reproducibility…

Mesoscale and Nanoscale Physics · Physics 2013-02-11 Nicolas Clement , David Guerin , Stephane Pleutin , Sylvie Godey , Dominique Vuillaume

Low-cost transition metal high-entropy nanoalloys are emerging as sustainable alternatives to platinum group electrocatalysts. Synthesis conditions of single-phase solid solutions can alter phase stability, causing surface composition…

Ni(OH)2 nanocrystals grown on graphene sheets with various degrees of oxidation are investigated as electrochemical pseudocapacitor materials for potential energy storage applications. Single-crystalline Ni(OH)2 hexagonal nanoplates…

Materials Science · Physics 2010-05-07 Hailiang Wang , Hernan Sanchez Casalongue , Yongye Liang , Hongjie Dai

Heterostructures constructed from two-dimensional building blocks have shown promise for field-effect transistors, memory devices, photosensors and other electronic applications1,2. 2D nanosheet crystals can be constructed into multilayer…

Electrically driven on-chip electron sources that do not need to be heated have been long pursued because the current thermionic electron sources show the problems of high power consumption, slow temporal response, bulky size, etc., but…

Applied Physics · Physics 2018-07-05 Gongtao Wu , Zhiwei Li , Zhiqiang Tang , Dapeng Wei , Gengmin Zhang , Qing Chen , Lian-Mao Peng , Xianlong Wei

Oxygen evolution reaction (OER) electrolysis, as an important reaction involved in water splitting and rechargeable metal-air battery, has attracted increasing attention for clean energy generation and efficient energy storage. Nickel/iron…

Materials Science · Physics 2014-11-19 Ming Gong , Hongjie Dai

A flexible technique is developed using hydrochloric acid to modify the redox reaction between potassium permanganate and sodium nitrite in order to grow ultrafine alpha-MnO2 nanorods, hydrothermally. The nanorods grown were 10-40 nm…

Materials Science · Physics 2018-09-11 Niraj Kumar , K. Guru Prasad , Arijit Sen , T. Maiyalagan

Exploring high-efficiency and low-cost electrocatalysts is valuable for water-splitting technologies. Recently, Si-group compounds have attracted increasing attention in electrocatalysis, considering the abundant Si-group elements on Earth.…

To achieve the further development of supercapacitors (SCs), which have intensively received attention as a next-generation energy storage system, the rational design of active electrode materials with electrochemically more favorable…

The synthesis of solar methanol through direct CO2 hydrogenation using solar energy is of great importance in advancing a sustainable energy economy. In this study, non-precious NiZn intermetallic/ZnO catalyst is reported to catalyze the…

Materials Science · Physics 2024-04-23 Linjia Han , Fanqi Meng , Xianhua Bai , Qixuan Wu , Yanhong Luo , Jiangjian Shi , Yaguang Li , Dongmei Li , Qingbo Meng

Dendrite free electrodeposition of lithium metal is necessary for the adoption of high energy density rechargeable lithium metal batteries. Here, we demonstrate a new mechanism of using a liquid crystalline electrolyte to suppress dendrite…

Applied Physics · Physics 2020-10-29 Zeeshan Ahmad , Zijian Hong , Venkatasubramanian Viswanathan

Advanced materials for electrocatalytic and photoelectrochemical water splitting are central to the area of renewable energy. Here, we developed a solvothermal synthesis of MoS2 nanoparticles selectively on reduced graphene oxide (RGO)…

Materials Science · Physics 2011-04-18 Yanguang Li , Hailiang Wang , Liming Xie , Yongye Liang , Guosong Hong , Hongjie Dai
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