Results 61 to 70 of about 88,182 (323)

High Energy Density Asymmetric Aqueous Supercapacitor Based on a 2D Manganese Carbide as a Positive Electrode

Advanced Functional Materials, EarlyView.
A circular route, involving upcycling of waste surgical masks, affords a Mn‐based layered carbide with porosity, redox activity and low work function. These features enable its effective operation as positive supercapacitor electrode in an aqueous asymmetric supercapacitor delivering 213 Wh L−1 energy density.
Debabrata Nandi, Smita Talande, Aby Cheruvathoor Poulose, Gabor Ersek, Giuseppe Portale, Michal Otyepka, Radek Zbořil, Aristides Bakandritsos   +7 more
wiley   +1 more source

Preparation of PtSn/C-Rh and PtSn/C-CeO2 for Ethanol Electro-Oxidation

International Journal of Electrochemical Science, 2010
PtSn/CeO2–C electrocatalyst and PtSn/Rh-C were prepared in a two step. In the first step a Carbon Vulcan XC72 + 15%CeO2 and Vulcan XC72 + 15%Rh supports were prepared using a modified polymeric precursor method under controlled synthesis conditions.
Rodrigo Fernando Brambilla De Souza, Marcelo Marques Tusi, Michele Brandalise, Ricardo Rodrigues Dias, Marcelo Linardi, Estevam Vitorio Spinacé, Mauro Coelho dos Santos, Almir Oliveira Neto   +7 more
doaj   +1 more source

Fabrication of Graphene Oxide-Decorated Mesoporous NiFe₂O₄ as an Electrocatalyst in the Hydrogen Gas Evolution Reaction

Designs, 2023
An electrocatalyst for the hydrogen evolution reaction has been successfully synthesized from graphene oxide (GO) decorated with the mesoporous NiFe2O4.
Afiten R. Sanjaya, Salsabila Amanda, Tribidasari A. Ivandini, Faisal Abnisa, Grandprix T. M. Kadja, Uji Pratomo, Yatimah Alias, Munawar Khalil   +7 more
doaj   +1 more source

Accelerated Discovery of High Performance Ni3S4/Ni3Mo HER Catalysts via Bayesian Optimization

Advanced Functional Materials, EarlyView.
Integrated workflow accelerates the catalyst discovery of hydrogen evolution reaction via Bayesian optimization. An experiment‐trained surrogate model proposes synthesis conditions, guiding iterative refinement using electrochemical performance metrics.
Namuersaihan Namuersaihan, Zhiqiang Zhao, Oliver J. Conquest, Ying Shu, Haoyue Sun, Chunjing Su, Qi Cheng, Aloysius Soon, Catherine Stampfl, Jun Huang   +9 more
wiley   +1 more source

Nucleation‐Controlled Reconstruction of CuOx for Selective CO2 Electroreduction

Advanced Functional Materials, EarlyView.
The ratio of oxygen vacancies (Ov) and exposed Cu2O (111)/(200) of CuOx precatalyst is modulated by nucleation control of Cu(OH)2 precursor. Low Ov ratio and high ratio of Cu2O (111)/(200) in slow‐nucleated CuOx reconstructs to high‐coordinated oxide‐derived copper (OD‐Cu) during electrochemical CO2 reduction reaction (CO2RR) and exhibits enhanced ...
Ying Ying Ch'ng, Zhipeng Ma, Ming Zhang, Shujie Zhou, Varun Kundi, Priyank Vijaya Kumar, Wenyu Zhong, Yuwei Yang, Jitraporn Vongsvivut, Qinfen Gu, Xiaoxuan Luo, Lixue Jiang, Rahman Daiyan, Zhaojun Han, Rose Amal   +14 more
wiley   +1 more source

Fine‐tuning electronic structure of N‐doped graphitic carbon‐supported Co‐ and Fe‐incorporated Mo2C to achieve ultrahigh electrochemical water oxidation activity

Carbon Energy
Mo2C is an excellent electrocatalyst for hydrogen evolution reaction (HER). However, Mo2C is a poor electrocatalyst for oxygen evolution reaction (OER).
Md. Selim Arif Sher Shah, Hyeonjung Jung, Vinod K. Paidi, Kug‐Seung Lee, Jeong Woo Han, Jong Hyeok Park   +5 more
doaj   +1 more source

Machine learning accelerated calculation and design of electrocatalysts for CO2 reduction

SmartMat, 2022
In the past decades, machine learning (ML) has impacted the field of electrocatalysis. Modern researchers have begun to take advantage of ML‐based data‐driven techniques to overcome the computational and experimental limitations to accelerate rational ...
Zhehao Sun, Hang Yin, Kaili Liu, Shuwen Cheng, Gang Kevin Li, Sibudjing Kawi, Haitao Zhao, Guohua Jia, Zongyou Yin   +8 more
doaj   +1 more source

Metal-Free Dihydrogen Oxidation by a Borenium Cation:A Combined Electrochemical/Frustrated Lewis Pair Approach [PDF]

, 2014
In order to use H2 as a clean source of electricity, prohibitively rare and expensive precious metal electrocatalysts, such as Pt, are often used to overcome the large oxidative voltage required to convert H2 into 2 H+ and 2 e−. Herein, we report a metal-
Bard, Chiu, Clark, Clark, Eisenberger, Erker, Farrell, Jutzi, Lawrence, Lawrence, Matsumoto, Matsumoto, Rablen, Stephan, Ueng, Welch   +15 more
core   +1 more source

Dual‐Site Ru Single‐Atoms and RuP Nanoclusters on N, P, and B Co‐Doped Porous Carbon for Efficient Alkaline HER and AEM Water Electrolysis

Advanced Functional Materials, EarlyView.
Ru single atoms and RuP nanoclusters are co‐anchored in N, P, and B co‐doped porous carbon nanospheres via in situ carbonization/phosphidation of a boronate polymer precursor. RuP activates water, while nearby Ru single atoms accelerate H2 formation through H* transfer. The catalyst delivers low overpotential and high durability in alkaline HER and AEM
Xiaohong Wang, Juguo Dai, Dongxu Li, Jianghua Wu, Hucheng Fu, Yiting Xu, Xueqiang Qi, Qian Xue, Yanbin Shen, Xiaoqing Pan, Conghui Yuan, Shuifen Xie, Andreu Cabot, Lizong Dai   +13 more
wiley   +1 more source

Recent progress towards the electrosynthesis of ammonia from sustainable resources [PDF]

, 2017
Ammonia (NH3) is a key commodity chemical of vital importance for fertilisers. It is made on an industrial scale via the Haber Bosch process, which requires significant infrastructure to be in place such that ammonia is generally made in large ...
Shipman, Michael A., Symes, Mark D.
core   +1 more source