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Transition metal oxides have generated significant interest for their potential as catalysts for the oxygen evolution reaction (OER) in alkaline environments. Iron and nickel-based perovskite oxides have proven particularly promising, with…

Materials Science · Physics 2023-10-17 Rajendra Paudel , Andricus R. Burton , Marcelo A. Kuroda , Byron H. Farnum , Ryan B. Comes

Hydrogen fuel is an ideal energy source to replace the traditional fossil fuels because of its high energy density and renewability. Electrochemical water splitting is also regarded as a sustainable, cleaning and eco-friendly method for…

Chemical Physics · Physics 2021-03-23 Zhexu Xi

A simple method for the preparation of PdCo@Pd core-shell nanoparticles supported on carbon has been developed using an adsorbate-induced surface segregation effect. The stability and electrocatalytic activity for the oxygen reduction of…

Materials Science · Physics 2012-01-17 Deli Wang , Huolin L. Xin , Yingchao Yu , Hongsen Wang , Eric Rus , David A. Muller , Hector D. Abruña

Nanoporous gold (NPG) with bi-continuous ligaments and pores structure has promising potential in functional applications, among which one prominent example is fuel cell electrocatalyst. However, current application of NPG is mostly limited…

Electrostatic catalysis has been an exciting development in chemical synthesis (beyond enzymes catalysis) in recent years, boosting reaction rates and selectively producing certain reaction products. Most of the studies to date have been…

In our work, a novel processing strategy for the continuous fabrication and surface modification of wires from Magnesium alloy WE43 by means of plasma-electrolytic oxidation (PEO) is presented. In the first step, wires with a strong basal…

Medical Physics · Physics 2023-02-09 Wahaaj Ali , Muzi Li , Leon Tillmann , Tim Mayer , Carlos González , Javier LLorca , Alexander Kopp

Synthesis of monolayer MoS2 is essential for fulfilling the potential of MoS2 in catalysis, optoelectronics and valleytronics, etc. Herein, we report for the first time the scalable growth of high quality, domain size tunable (edge length…

The kinetics of the oxygen reduction reaction (ORR) on the practical air cathode in a Lithium air cell, which is conventionally composed of porous carbon with or without catalysts supported on it, was investigated. The mechanism and…

The catalytic sites of MoS$_{2}$ monolayers towards hydrogen evolution are well known to be vacancies and edge-like defects. However, it is still very challenging to control the position, size, and defective areas on the basal plane of…

Electrocatalytic hydrogenation of nitrobenzene (Ph-NO2) reaction (EHNR) has been considered as a potential alternative to the traditional thermocatalytic process in the production of high-value aniline (Ph-NH2). However, due to the absence…

Chemical Physics · Physics 2024-03-26 Yuchen Wang , Yaoyu Liu , Zhiyue Zhao , Zhikeng Zheng , Alina M. Balu , Rafael Luque , Kai Yan

In the last several years, there has been a wealth of studies to clarify the role of thin layers of electrocatalysts on semiconducting photoelectrodes to the efficiency of the oxygen evolution reaction (OER). It has been shown that the…

Hydrogen has emerged as a promising energy source, holding the key to achieve low-carbon and sustainable mobility. However, its applications are still limited by modest conversion efficiency in the electrocatalytic oxygen reduction reaction…

The hydrogen evolution reaction (HER) in alkaline media suffers from sluggish kinetics but the origin of the pH-dependent activity remains debated. This study investigates the role of hydroxide ions (OH) in enhancing the alkaline HER at…

Chemical Physics · Physics 2025-08-12 Er-Fei Zhen , Tao-Qi Zong , Lang Qin , Bai-Quan Zhu , Jun Cai , Marko M. Melander , Yan-Xia Chen

In order to estimate the reactivity of a large number of potentially complex heterogeneous catalysts while searching for novel and more efficient materials, physical as well as data-centric models have been developed for a faster evaluation…

Materials Science · Physics 2021-06-28 Lucas Foppa , Luca M. Ghiringhelli

Designing efficient, metal free, and in-expensive catalyst for electrochemical hydrogen evolution reaction (HER) is crucial for large scale clean and green energy production. Recently synthesized 1D Biphenylene nanoribbons (BPRs) display…

Materials Science · Physics 2024-05-29 Radha N Somaiya , Zicong Marvin Wong , Brahmananda Chakraborty , Teck Leong Tan , Aftab Alam

One pot synthetic technique was used to synthesize mesoporous fullerene using highly ordered mesoporous template such as KIT6-150 and SBA-15-150. Highly ordered porous fullerene with cross linkage between the fullerene molecules was…

Materials Science · Physics 2015-03-12 Sujit K. Mondal

Palladium (Pd) catalysts have been extensively studied for the direct synthesis of H2O through the hydrogen oxidation reaction at ambient conditions. This heterogeneous catalytic reaction not only holds considerable practical significance…

Materials Science · Physics 2024-04-23 Yukun Liu , Kunmo Koo , Zugang Mao , Xianbiao Fu , Xiaobing Hu , Vinayak P. Dravid

H$_2$ evolution reaction (HER) requires an electrocatalyst to reduce the reaction barriers for the efficient production of H$_2$. Platinum-group metal (PGM) elements such as Pt, Pd, etc. and their derivatives show excellent electrocatalytic…

Materials Science · Physics 2022-09-16 Srimanta Pakhira , Vikash Kumar

Efficient and selective CO2 electroreduction into value-added chemicals and fuels emerged as a significant approach for CO2 conversion, however, it relies on catalysts with controllable product selectivity and reaction paths. In this work,…

Mesoscale and Nanoscale Physics · Physics 2022-10-26 Wei Xun , Xiao Yang , Qing-Song Jiang , Ming-Jun Wang , Yin-Zhong Wu , Ping Li

It is shown that producing PrBaCo2O5 and Ba0.5Sr0.5Co0.8Fe0.2O3 nanoparticle by a scalable synthesis method leads to high mass activities for the oxygen evolution reaction with outstanding improvements by 10 and 50 times, respectively,…