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The search for earth abundant, efficient and stable electrocatalysts that can enable the chemical reduction of CO2 to value-added chemicals and fuels at an industrially relevant scale, is a high priority for the development of a global…

This study presents a three-dimensional electrode for hydrogen evolution reaction (HER), tackling challenges in corrosion resistance, catalytic activity, and durability. The electrode features a rod-connected diamond structure made of…

Nanoporous carbon materials containing small domains of sp2-carbon with highly disordered structures are promising for supercapacitor applications. Herein, we synthesize amorphous carbon nanofoam with 98% volumetric void fraction and low…

Nanoporous graphitic carbon membranes with defined chemical composition and pore architecture are novel nanomaterials that are actively pursued. Compared to easy-to-make porous carbon powders that dominate the porous carbon research and…

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…

NiCo2O4 of varying nanostrucutures ranging from nanowires, nanoplates to nano-plates@nanowires were successfully grown on microporous (MP) Ni foams via one-step hydrothermal process. The investigation of electrochemical capacitance favors…

材料科学 · 物理学 2016-04-05 Qin Guo , Mengjie Xu , Rongjun Xu , Ying Zhao , Boyun Huang

Nanoporous Cu (NPC), synthesized by chemical dealloying of brass, holds significant potential for catalysis of electrochemical CO2 and CO reduction, owing to the optimal binding energy of Cu with *CO and *H intermediates, and the abundance…

Clean hydrogen production through efficient and cost-effective electrochemical water splitting is highly promising to meeting future global energy demands. The design of Earth-abundant materials with both high activity for hydrogen…

The hybrid nanostructures of nitrogen doped carbon materials and nonprecious transition metals are among the most promising electrocatalysts to replace noble metal catalysts for renewable energy applications. However, the fundamental…

材料科学 · 物理学 2018-05-14 Wei Pei , Si Zhou , Yizhen Bai , Jijun Zhao

Recently, 2D JTMDs with asymmetric electronic structures are inviting an intense research interest in modern science and technology. Using the first principles-based periodic hybrid dispersion-corrected Density Functional Theory (DFT-D)…

材料科学 · 物理学 2022-09-16 Srimanta Pakhira , Shrish Nath Upadhyay

Hydrogen is a promising energy carrier for replacing fossil fuels, and hydrogen production via hydrogen evolution reaction (HER) is an environmentally friendly option if electrocatalysts with low overpotentials and long-term stability are…

Designing electrocatalysts for HER in alkaline conditions to overcome the sluggish kinetics associated with the additional water dissociation step is a recognized challenge in promoting the hydrogen economy. To this end, delicately tuning…

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…

材料科学 · 物理学 2022-03-14 Peng Zou , Bowen Zang , Lijian Song , Juntao Huo , Jun-Qiang Wang

Alkaline water electrolysis is considered a commercially viable option for large-scale hydrogen production. However, this process still faces challenges due to the high voltage (>1.65 V at 10 mA cm$^{-2}$) and its limited stability at…

Pulsed laser-deposited amorphous carbon nanofoams are potential candidate for electrochemical energy storage applications due to ultra-light weight, large volumetric void fractions, and co-existence of sp, sp2 and sp3 carbon hybridization.…

A uniformly coated MoS2/Carbon-nanocomposite with three-dimensional hierarchical architecture based on carbonized bacterial cellulose (CBC) nanofibers is synthesized by a facile one-step hydrothermal method followed by thermal annealing at…

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…

Now-a-days, the development of clean and green energy sources is the prior interest of research due to increasing global energy demand and extensive usage of fossil fuels that create pollutants. Hydrogen has the highest energy density by…

材料科学 · 物理学 2023-06-28 Vikash Kumar , Shrish Nath Upadhyay , Dikeshwar Halba , Srimanta Pakhira

Electrochemical desalination devices that use redox-active cation intercalation electrodes show promise for desalination of salt-rich water resources with high water recovery and low energy consumption. While previous modeling and…

应用物理 · 物理学 2018-04-02 Sizhe Liu , Kyle C. Smith

The current study illustrates the successful synthesis of Ce$_{1.0}$Mn$_{0.9}$Co$_{0.1}$ nanoparticles, characterized through XRD, EPR, magnetization curves, and TEM/HRTEM/EDX analyses. These nanoparticles were then loaded into the carbon…

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