Results 81 to 90 of about 186,975 (318)

Efficient amine-assisted CO2 hydrogenation to methanol co-catalyzed by metallic and oxidized sites within ruthenium clusters

Nature Communications
Amine-assisted two-step CO2 hydrogenation is an efficient route for methanol production. To maximize the overall catalytic performance, both the N-formylation of amine with CO2 (i.e., first step) and the subsequent amide hydrogenation (i.e., second step)
Desheng Su, Yinming Wang, Haoyun Sheng, Qihao Yang, Dianhui Pan, Hao Liu, Qiuju Zhang, Sheng Dai, Ziqi Tian, Zhiyi Lu, Liang Chen   +10 more
doaj   +1 more source

Operando Monitoring of Rechargeable Zinc-Air Batteries with Acoustic Emission

Electrochemistry
This study demonstrates that the acoustic emission (AE) methodology can be successfully applied to zinc-air battery systems. AE analysis provides real-time insights into mechanically induced events and enables qualitative correlation with electrochemical
Valentin RUEẞ, Nadine MOHAMED, Lennart KÖSTERS, Michael HEERE, Petr NOVÁK, Daniel SCHRÖDER   +5 more
doaj   +1 more source

Application of fuel cells in transportation

Fuel cells are electrochemical devices capable of converting the chemical energy stored in the fuel into electricity, with the only waste being heat and water vapor.
Borge Diez, David, Rosales Asensio, Enrique, Velaz Acera, Néstor   +2 more
core   +1 more source

Phase Evolution Kinetics in Additive‐Free 19.75% Organic Photovoltaics Empowered by Solvent Vapor Annealing

Advanced Functional Materials, EarlyView.
Solvent vapor annealing enables kinetic control of additive‐free morphology in organic solar cells. Selective plasticization of acceptor forms an optimal fibrillar network, boosting efficiency to 19.06% (binary) and 19.75% (ternary), with ultrafast exciton dissociation and reduced recombination.
Jie Lv, Jieni Chen, Cenqi Yan, Patrick W. K. Fong, Jingjing Zhao, Daming Zheng, DingQin Hu, Xiaoman Ding, Xiaokang Sun, Chuanlin Gao, Guangye Zhang, Qianguang Yang, Can Zhu, Pei Cheng, Shirong Lu, Zhipeng Kan, Zhiwei Ren, Guangliu Ran, Wenkai Zhang, Hanlin Hu, Gang Li   +20 more
wiley   +1 more source

A review of developments in electrodes for regenerative polymer electrolyte fuel cells

, 2006
The design of electrodes for unitised regenerative polymer electrolyte fuel cells (URFC) requires a delicate balancing of transport media. Gas transport, electrons and protons must be carefully optimised to provide efficient transport to and from the ...
Pettersson, J, Harrison, DJ, Ramsey, BJ
core  

The prospects for biogas integration with fuel cells in the United Kingdom [PDF]

, 2015
Anaerobic digestion (AD) presence is emerging in the UK because it has numerous environmental benefits as a waste management strategy and produces valuable biogas.
Brandon, NP, Torija, S, Castillo-Castillo, A   +2 more
core   +1 more source

Powering Nanocrystal‐Based Heat Engines With Light‐Emitting Metasurfaces That Influence Their Temperature

Advanced Functional Materials, EarlyView.
Metasurfaces and other structured photonic environments can dramatically modify the absorption and/or light emission of semiconductors. However, the consequences of these changes on the temperature of the system are not well understood. The authors address this problem for colloidal nanocrystals and leverage their findings to convert light into ...
Hugo Kowalczyk, Yihao Yuan, Augustin Caillas, Amel Saidoun, Roméo Bonnet, Pascal Filloux, Emmanuel Lhuillier, Aloyse Degiron   +7 more
wiley   +1 more source

Bacterial‐Electrochemical Platform Utilizing a MXene‐Peptide Hydrogel

Advanced Functional Materials, EarlyView.
A peptide‐based fibrillar hydrogel incorporating MXene facilitates efficient electron delivery to intracellular recombinant [FeFe]‐hydrogenase enzyme in E. coli, enabling sustained bioelectrochemical H2 production without engineered exoelectrogenicity pathways.
Oren Ben‐Zvi, Itzhak Grinberg, Or Messer, Dana Cohen‐Gerassi, Maxim Sokol, Iftach Yacoby, Lihi Adler‐Abramovich   +6 more
wiley   +1 more source

2011 Annual Progress Report: DOE Hydrogen and Fuel Cells Program (Book) [PDF]

, 2011
In the past year, the DOE Hydrogen and Fuel Cells Program (the Program) made substantial progress toward its goals and objectives. The Program has conducted comprehensive and focused efforts to enable the widespread commercialization of hydrogen and fuel

core   +1 more source

Coupling Anodic Activity and Stability at Ni‐Based Non‐Oxide Catalysts via Coordinating Alcohol Oxidation and Oxygen Evolution

Advanced Functional Materials, EarlyView.
A cooperative and competitive interrelationship between alcohol oxidation (AOR) and water oxidation (OER) was observed on a typical anode catalyst of Ni2P. In situ Raman spectroscopy and electrochemical analyses revealed a specific complementary mechanism between them, in which OER and AOR critically contribute to the activity and stability of anodic ...
Yong Yan, Xinyu Liu, Yuguo Zhao, Hanwen Jian, Huan Zhou, Riyi Zhang, Dong Wang, Peter Schaaf, Lihua Wang, Guangsheng Guo, Xiayan Wang   +10 more
wiley   +1 more source