Results 81 to 90 of about 210,845 (301)

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

Ammonia-oxidizing archaea and ammonia-oxidizing bacteria in six full-scale wastewater treatment bioreactors [PDF]

Applied Microbiology and Biotechnology, 2011
In this study, dideoxy sequencing and 454 high-throughput sequencing were used to analyze diversities of the ammonia monooxygenase (amoA) genes and the 16S rRNA genes of ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) in six municipal wastewater treatment plants.
Tong, AHY, Ye, L, Shao, MF, Lok, S, Zhang, T   +4 more
openaire   +4 more sources

Self‐Refreshing Bi‐Based Active Sites for Efficient and Durable Electrochemical CO2 Reduction

Advanced Functional Materials, EarlyView.
A self‐refreshing Bi‐based catalyst is developed through the fabrication of a novel basic bismuth nitrate pre‐catalyst, which exhibits differential active sites of Bi2O2CO3 at low potentials and metallic Bi phases at high potentials, self‐repairing capability, and thus wide‐potential‐window efficiency and ultralong durability toward electrochemical CO2
Yuxuan Xiao, Xiaoling Lai, Jinxian Feng, Ziwen Feng, Wendi Zhang, Lun Li, Weng Fai IP, Hui Pan   +7 more
wiley   +1 more source

Scaling relations for ammonia oxidation

Catalysis Today
The ammonia oxidation reaction is a reaction of great interest for its potential to upcycle ammonia waste, creating fertilizer salts beneficial for the agricultural industry. Currently, AOR catalysts typically suffer either from high onset potentials or catalyst poisoning, and better catalyst materials must be found in order for AOR to be viable for ...
Rachelle Choueiri, Stephen Tatarchuk, Olivia Parker, William Cooper, Leanne Chen   +4 more
openaire   +1 more source

Кинетика процесса окисления аммиака на оксидных катализаторах [PDF]

, 2008
Досліджені можливості зменшення кількості монооксиду нітрогену N₂O, який утворюється як побічний продукт при високотемпературній оксидації аміаку у виробництві нітратної кислоти.
Близнюк, Ольга Николаевна, Савенков, Анатолий Сергеевич, Ушакова, Нина Михайловна, Яковишин, В. А.   +3 more
core  

Infrared Nanocrystals for Space Application: Hardness to Irradiations

Advanced Functional Materials, EarlyView.
This article investigates infrared HgTe nanocrystals under X‐ray and ion irradiation, revealing remarkable radiation hardness. It uncovers distinct degradation mechanisms and shows that the nanomaterial outperforms integrated electronics. The results position colloidal nanocrystals as promising candidates for resilient space and harsh‐environment ...
Alexandre Neyret, Dario Mastrippolito, Bingbing Xia, Adrien Khalili, Maxime Lebreton, Giorgia Strobbia, Albin Colle, Marco Paye, Mariarosa Cavallo, Erwan Bossavit, Claire Abadie, Yoann Prado, Debora Pierucci, Victor Parahyba, Francois Coursaget, David Darson, Emrick Briand, Ian Vickridge, Stephane Demiguel, Sebastien Massenot, Jean‐Marc Belloir, Vincent Goiffon, Emmanuel Lhuillier   +22 more
wiley   +1 more source

Enhanced ammonia electro-oxidation reaction on platinum‑iron oxide catalyst assisted by MagnetoElectroCatalysis

Applied Catalysis O: Open
Ammonia poses significant environmental challenges due to its role in water pollution, contributing to eutrophication and several detrimental environmental and ecological issues.
Caio Machado Fernandes, Eduardo M. Rodrigues, Odivaldo C. Alves, Flavio Garcia, Yutao Xing, Mauro C. dos Santos, Júlio César M. Silva   +6 more
doaj   +1 more source

Gas-Phase Photocatalytic Oxidation of Dimethylamine: The Reaction Pathway and Kinetics

International Journal of Photoenergy, 2007
Gas-phase photocatalytic oxidation (PCO) and thermal catalytic oxidation (TCO) of dimethylamine (DMA) on titanium dioxide was studied in a continuous flow simple tubular reactor.
Anna Kachina, Sergei Preis, Juha Kallas
doaj   +1 more source

Quantification of ammonia oxidation rates and the distribution of ammonia-oxidizing Archaea and Bacteria in marine sediment depth profiles from Catalina Island, California

Frontiers in Microbiology, 2012
Microbial communities present in marine sediments play a central role in nitrogen biogeochemistry at local to global scales. Along the oxidation-reduction gradients present in sediment profiles, multiple nitrogen cycling processes (such as nitrification,
J. Michael eBeman, Victoria Jean Bertics, Victoria Jean Bertics, Thomas eBraunschweiler, Jesse eWilson   +4 more
doaj   +1 more source

Heteroatom‐Engineering Promoted Co9S8 Bi‐functional Electrocatalyst for Hydrazine‐Assisted Hydrogen Production at Industrial Current Density

Advanced Functional Materials, EarlyView.
Fe and P co‐doped Co9S8 nanocorals (Fe, P‐Co9S8) are successfully synthesized by a heteroatom engineering strategy, which exhibit outstanding bifunctional electrocatalytic performance for both the hydrogen evolution reaction (HER) and hydrazine oxidation reaction (HzOR).
Yuying Meng, Chunyan Xiang, Wenbiao Zhang, Dahai Zeng, Bing Du, Bao Zhong, Yue Jiang, Damien Voiry, Qingsheng Gao   +8 more
wiley   +1 more source