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A spatial stochastic model is developed which describes the 3D nanomorphology of composite materials, being blends of two different (organic and inorganic) solid phases. Such materials are used, for example, in photoactive layers of hybrid…

Photocatalytic water splitting offers a viable and sustainable method for hydrogen production. MXenes, a class of 2D transition-metal carbides/nitrides, have emerged as potential photocatalysts and co-catalysts due to their tunable…

材料科学 · 物理学 2025-06-17 C. B. Subba , Prasad Mattipally , J. Sivakumar , A. Laref , A. Yvaz , D. P. Rai , Z. Pachuau

Hydrogen technology is set to be a key energy alternative for mitigating pollution and reducing CO$_2$ emissions. However, the current storage mechanism of hydrogen molecules in carbon fibre tanks detracts from the fuel economy of hydrogen…

材料科学 · 物理学 2026-04-09 Yasmine S. Al-Hamdani , Dario Alfè , Andrea Zen

Exceptionally high energy density by mass, natural abundance, widespread applications, and environmental friendliness make hydrogen (H2) a front-runner among clean energy options. However, the transition toward clean and renewable energy…

材料科学 · 物理学 2024-07-25 Wael Othman , Wadha Al Falasi , Tanveer Hussain , Nacir Tit

The development of reversible hydrogen storage materials has become crucial for enabling carbon-neutral energy systems. Based on this, the present work investigates the hydrogen storage on the sodium-decorated P-C$_3$N (Na@P-C$_3$N), a…

High electronic transport and reasonable chemical stability of molybdenum disulfide (MoS$_2$) make it very suitable for electrochemical applications. However, its energy storage capacity is still low compared with other nanostructures. In…

应用物理 · 物理学 2022-08-19 Marzieh Rashidi , Foad Ghasemi

Rational design of novel two-dimensional (2D) electrode materials with high capacity is crucial for the further development of Li-ion and Na-ion batteries. Herein, based on first-principles calculations, we systemically investigate Li and…

材料科学 · 物理学 2019-11-22 Junping Hu , Chengyong Zhong , Weikang Wu , Ning Liu , Yu Liu , Shengyuan A. Yang , Chuying Ouyang

2D semiconducting nanosheets of Transition Metal Dichalcogenides are attractive materials for solar energy conversion because of their unique absorption properties. Here, we propose Mo thio- and oxo-thio-complexes anchored on 2D p-WSe2…

The current work studies the electrocatalytic performance of NaNbO$_3$ microcubes decorated with WO$_3$ nanoparticles on Printex L6 at varying concentrations (1%, 3%, 5%, and 10% by weight) for H$_2$O$_2$ electrogeneration aiming for future…

Fast-growing electronics industry and future energy storage needs have encouraged the design of rechargeable batteries with higher storage capacities, and longer life times. In this regard, two-dimensional (2D) materials, specifically boron…

应用物理 · 物理学 2018-03-21 Meysam Makaremi , Bohayra Mortazavi , Chandra Veer Singh

The production of hydrogen from water using only a catalyst and solar energy is one of the most challenging and promising outlets for the generation of clean and renewable energy. Semiconductor photocatalysts for solar hydrogen production…

We demonstrate theoretically that an array of carbon nanoscrolls acts as a hyperbolic magnetic metamaterial in the THz regime with genuine subwavelength operation corresponding to wavelength-to-structure ratio of about 200. Due to the low…

介观与纳米尺度物理 · 物理学 2013-10-30 Vassilios Yannopapas , Marilena Tzavala , Leonidas Tsetseris

The shift from fossil fuels to renewable energy sources is essential for reducing global carbon emissions and addressing climate change. Developing advanced materials for efficient hydrogen storage enables sustainable energy solutions in…

Two-dimensional (2D) molybdenum disulfide (MoS2) nanosheets have attracted attention as a promising and cost-effective alternative catalyst for the hydrogen evolution reaction (HER). However, their aggregation and poor conductivity limit…

The realization of novel heterostructures arising from the combination of nanomaterials is an effective way to modify their physicochemical and electrocatalytic properties, giving them enhanced characteristics stemming from their individual…

材料科学 · 物理学 2022-01-17 Antonia Kagkoura , Raul Arenal , Nikos Tagmatarchis

Aerogels have attracted significant attention recently due to their ultra-light weight porous structure, mechanical robustness, high electrical conductivity, facile scalability and their use as gas and oil absorbers. Herein, we examine the…

Graphynes and graphdiynes are carbon 2D allotrope structures presenting both sp2 and sp hybridized atoms. These materials have been theoretically predicted but due to intrinsic difficulties in their synthesis, only recently some of these…

介观与纳米尺度物理 · 物理学 2017-02-21 Daniel Solis , Cristiano F. Woellner , Daiane D. Borges , Douglas S. Galvao

The recent progress in the field of hydrogen storage in carbon and boron nitride nanostructures has been summarized. Carbon and boron nitride nanostructures are considered advantageous in this prospect due to their lightweight and high…

应用物理 · 物理学 2021-07-29 Y. T. Singh , B. Chettri , A. Banik , K. O. Obodo , D. P. Rai

We propose a multi-layer graphene-based device in which storage and release of atomic hydrogen is obtained by exploiting and controlling the corrugation of the layers. The proposal is based on density-functional simulations of hydrogen…

介观与纳米尺度物理 · 物理学 2011-01-07 Valentina Tozzini , Vittorio Pellegrini

To enhance the activity of photocatalysts for hydrogen production and CO2 conversion, noble metal cocatalysts as electron traps and/or acceptors such as platinum or gold are usually utilized. This study hypothesizes that mixing elements…