Results 51 to 60 of about 150,264 (296)

Electrochemical Flocculation Integrated Hydrogen Evolution Reaction of Fe@N‐Doped Carbon Nanotubes on Iron Foam for Ultralow Voltage Electrolysis in Neutral Media

Advanced Science, 2019
Hydrogen (H2) production is a key step in solving the energy crisis in the future. Electrocatalytic water splitting suffers from sluggish anodic oxygen evolution reaction (OER) kinetics leading to low energy conversion efficiency.
Jiayuan Yu, Guixiang Li, Hui Liu, Lili Zeng, Lili Zhao, Jin Jia, Mingyuan Zhang, Weijia Zhou, Hong Liu, Yongyou Hu   +9 more
doaj   +1 more source

Atomic layer deposition triggered Fe-In-S cluster and gradient energy band in ZnInS photoanode for improved oxygen evolution reaction

Nature Communications, 2021
The sluggish oxygen evolution reaction kinetics severely hinder the development of photoelectrochemical water splitting. Here the authors introduce Fe-In-S clusters onto the surface of photoanode to effectively lower the electrochemical reaction barrier.
Linxing Meng, Jinlu He, Xiaolong Zhou, Kaimo Deng, Weiwei Xu, Pinit Kidkhunthod, Run Long, Yongbing Tang, Liang Li   +8 more
doaj   +1 more source

Applications of ALD MnO to electrochemical water splitting

Physical Chemistry Chemical Physics, 2015
The effect of OER potentials on the oxidation and morphology of ALD-MnO electrocatalysts is investigated with an emphasis on applications.
Katie L, Pickrahn, Yelena, Gorlin, Linsey C, Seitz, Aaron, Garg, Dennis, Nordlund, Thomas F, Jaramillo, Stacey F, Bent   +6 more
openaire   +3 more sources

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou, Yu Mao, Mengyao Chang, Ziyun Wang, Wenke Xie, Cuizhu Ye, Shanghai Wei, Lars Thomsen, Geoffrey I. N. Waterhouse   +8 more
wiley   +1 more source

Pore Size Effects of Mesoporous N‐Doped Carbon Nanospheres as Advanced Support Material on the Activity of Molybdenum Sulfide Catalysts for the Hydrogen Evolution Reaction

Advanced Functional Materials, EarlyView.
By tuning the pore size of mesoporous N‐doped carbon (MPNC) nanospheres as support material for molybdenum sulfide, the electrochemical activity of the composite material for the hydrogen evolution reaction can be optimized. An ideal MPNC pore size of 60 nm allows a high number of molybdenum sulfide active sites while maintaining efficient proton and ...
Niklas Ortlieb, Christian Völker, Lars Guggolz, Anna Fischer   +3 more
wiley   +1 more source

Zn-Co nanoferrite electrocatalysts for enhanced hydrogen and oxygen generation

Results in Chemistry
This study aims to investigate the role of Zn1-xCoxFe2O4 electrocatalysts in enhancing the efficiency of water splitting reactions for hydrogen and oxygen evolution. A potpourri of hydrothermally synthesized Zn1-xCoxFe2O4 electrocatalysts was prepared to
Kiran Shahzadi, Muhammad Sarfraz, Muneerah Alomar, M.A. Mujtaba, Muhammad Nasir Bashir, Muhammad Mahmood Ali, Faisal Ali   +6 more
doaj   +1 more source

Operando Temperature Sensing at the Actual Electrocatalytic Interface by Nanodiamond Quantum Sensors

Advanced Functional Materials, EarlyView.
By integrating a wide‐field microscope with a custom‐designed electrolyzer, nanoscale temperature changes can be recorded in situ during the electrolysis process without interfering with ongoing electrochemical reactions. This method establishes a correlation between the interface temperature and specific electrochemical reactions, making the measured ...
Zan Li, Hui Wang, Mingzhong Ai, Yao Gao, Xinyi Feng, Junchen Ye, Ying Wang, Quan Li   +7 more
wiley   +1 more source

Progress and Challenge of Amorphous Catalysts for Electrochemical Water Splitting

ACS Materials Letters, 2020
Electrochemical water splitting has been regarded a promising technology to provide a mobile and sustainable energy supply in the form of hydrogen fuel.
Yao Zhou, H. Fan
semanticscholar   +1 more source

Enhanced Nitric Oxide Electroreduction to Ammonia via Modulating Spin‐Polarization of Fe Single‐Atom Catalysts

Advanced Functional Materials, EarlyView.
A strategic spin‐polarization suppression in Fe single‐atom catalysts is proposed to enhance electrocatalytic reduction of NO to NH3. Employing a top‐down electrospinning strategy, self‐supported FeSAC with Fe‐N3S1 coordination structure and spin‐state transition is engineered from high‐spin to low‐spin.
Jialing Song, Ziqi Wei, Lupeng Han, Zhenlin Wang, Chenghao Fan, Donglin Han, Chunwei Dong, Haiyan Duan, Xiyang Wang, Sam Fong Yau Li, Eslam Hamed, Ming Xie, Emiliano Cortés, Dengsong Zhang   +13 more
wiley   +1 more source

Silver Ion‐Mediated [hk1]‐Oriented Sb2Se3 Crystal Growth for Efficient Photoelectrochemical Hydrogen Evolution

Advanced Functional Materials, EarlyView.
Ag+‐mediated hydrothermal crystal engineering promotes preferential [hk1]‐oriented growth of Sb2Se3 via an ultrathin MoOx interlayer, improving crystallinity and suppressing non‐radiative recombination. The optimized Ag+ treatment photocathode delivers 24.7 mA cm−2 at 0 VRHE and improved stability, revealing an ion‐modulated route to high‐performance ...
Ziying Zhang, Zhenbin Wang, Mirjana Dimitrievska, Miloš Baljozović, Yongping Gan, Pardis Adams, Sanghyun Bae, Thomas Moehl, Wenzhe Niu, Xiang jiu Guan, S. David Tilley   +10 more
wiley   +1 more source