Results 51 to 60 of about 66,037 (288)

Electrical and catalytic properties of some oxides with the fluorite or pyrochlore structure: Part 1: Synthesis, characterization and conductivity [PDF]

, 1984
In view of their possible use as electrocatalysts, several oxides with the fluorite or pyrochlore structure were investigated. Part I of this paper deals with the synthesis, characterization and electrical conductivity of these materials.
Bosch, H., Burggraaf, A.J., Dijk, M.P. van, Gellings, P.J., Maat, J.J.H. ter, Roelofs, G., Velde, G.M.H. van de   +6 more
core   +2 more sources

Establishing a Model Precursor System: Over a Decade of Research on Carbon Dots from the Citric Acid‐Urea System

Advanced Functional Materials, EarlyView.
The citric acid/urea (CA‐Urea) precursor system offers a versatile, scalable route to carbon dots with tunable luminescence and multifunctionality. Mechanistic insights into precursor chemistry and reaction parameters have enabled doping, surface modification, and hybridization strategies, yielding CDs for luminescent devices, sensing, catalysis ...
Yupeng Liu, Zhiqi Cai, Xiangxin Sun, Hanyi Zhang, Yiming Hao, Jun Wu, Zekun Yan, Xue Wu, Yiqi Liang, Liming Wang, Songnan Qu   +10 more
wiley   +1 more source

Ru/Ir‐Based Electrocatalysts for Oxygen Evolution Reaction in Acidic Conditions: From Mechanisms, Optimizations to Challenges

Advanced Science
The generation of green hydrogen by water splitting is identified as a key strategic energy technology, and proton exchange membrane water electrolysis (PEMWE) is one of the desirable technologies for converting renewable energy sources into hydrogen ...
Rong Qin, Guanzhen Chen, Xueting Feng, Jiena Weng, Yunhu Han   +4 more
doaj   +1 more source

Strategies for the enhancements in catalytic performance and stability of anodic electrocatalyst in PEM water splitting

Energy Reviews
This article presents a strategy for enhancing the catalytic performance and stability of anodic electrocatalysts in proton exchange membrane (PEM) water splitting.
Yuhua Xie, Fang Luo, Zehui Yang
doaj   +1 more source

Electrocatalytic activity of hypo–hyper-d-electrocatalysts (Me/TiO₂/MWCNTs) based on Co-Ru in alkaline hydrogen electrolyser

Macedonian Journal of Chemistry and Chemical Engineering, 2011
This study is concerned with preparation and characterization of Co-Ru based hypo-hyper d-electrocatalysts aimed for water electrolysis. The composition of the studied electrocatalysts was: 10 % mixed metallic phase (Co : Ru = 1 : 1 wt., Co:Ru = 4 : 1 wt.
Perica Paunović, Orce Popovski, Dafinka Stoevska Gogovska, Elefteria Lefterova, Evelina Slavcheva, Aleksandar T. Dimitrov   +5 more
doaj   +1 more source

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

Advanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

Heterostructures of MXenes and N-doped graphene as highly active bifunctional electrocatalysts

, 2018
MXenes with versatile chemistry and superior electrical conductivity are prevalent candidate materials for energy storage and catalysts. Inspired by recent experiments of hybridizing MXenes with carbon materials, here we theoretically design a series of ...
Liu, Nanshu, Pei, Wei, Yang, Xiaowei, Zhao, Jijun, Zhou, Si   +4 more
core   +1 more source

Rate‐Adaptive Site Transformation Catalyst for Parallel Water Dissociation and Hydrogen Adsorption in Alkaline Hydrogen Evolution

Advanced Functional Materials, EarlyView.
This work presents a rate‐adaptive site transformation strategy in Ag‑ethylenediamine intercalated Co9S8, which not only enables parallel water dissociation and H* adsorption, but also allows the catalyst to provide more active sites under high demand, removing a major bottleneck. The catalyst achieves a record current density of 4.2 A cm−2@2.0 V, with
Yongqi Ye, Yuzhuo Jiang, Bin Tian, Derek Ho   +3 more
wiley   +1 more source

Au@Pt Dendrimer Encapsulated Nanoparticles As Model Electrocatalysts for Comparison of Experiment and Theory [PDF]

, 2012
In this paper we report the electrochemical synthesis of core@shell dendrimer-encapsulated nanoparticles (DENs) consisting of cores containing 147 Au atoms (Au-147) and Pt shells having similar to 54 or similar to 102 atoms (Au-147@Pt-n (n = 54 or 102)).
Crooks, Richard M., Henkelman, Graeme, Yancey, David F., Zhang, Liang   +3 more
core   +1 more source

Balancing Electrons to Break the Activity‐Selectivity Trade‐Off in H2O2 Electrosynthesis

Advanced Functional Materials, EarlyView.
Carrier‐concentration balancing in CuS is achieved by coupling cobalt dopants with cobalt vacancies, converting CuS from p‐ to n‐type to accelerate 2e− ORR while withdrawing excess carriers to optimize *OOH binding for H2O2 desorption. The catalyst reaches 8.14 mol g−1 h−1 with >84% selectivity in 1.0 M KOH and drives robust electro‐Fenton dye ...
Hangning Liu, Changhui Sun, Luyao Wang, Yuhang Cheng, Yi Xin, Xuyun Guo, Hui Li, Valeria Nicolosi, Yuhai Dou, Peng Li, Tianyi Ma, Jie Wang   +11 more
wiley   +1 more source