Results 41 to 50 of about 1,098,304 (355)

Preparation and Characterization of Multi-Doped Porous Carbon Nanofibers from Carbonization in Different Atmospheres and Their Oxygen Electrocatalytic Properties Research

Nanomaterials, 2022
Recently, electrocatalysts for oxygen reduction reaction (ORR) as well as oxygen evolution reaction (OER) hinged on electrospun nanofiber composites have attracted wide research attention.
Tao Wang, Oluwafunmilola Ola, Malcom Frimpong Dapaah, Yuhao Lu, Qijian Niu, Liang Cheng, Nannan Wang, Yanqiu Zhu   +7 more
doaj   +1 more source

Oxygen reduction at the silver/hydroxide-exchange membrane interface [PDF]

, 2008
A solid-state cell is used to study the electrocatalysis of oxygen reduction at the silver/hydroxide-exchange membrane interface. The catalyst/membrane interface exhibits improved performance in comparison to a catalyst/aqueous sodium hydroxide interface.
Abd El Rehim, Alice E.S. Sleightholme, Anthony R. Kucernak, Basura, Beattie, Blizanac, Cha, Chatenet, Denuault, Gasteiger, Gubbins, Jiang, Jiang, Jiang, John R. Varcoe, Kinoshita, Motheo, Sobkowski, Varcoe, Varcoe, Varcoe, Varcoe, Varcoe   +22 more
core   +2 more sources

A self‐powered system to electrochemically generate ammonia driven by palladium single atom electrocatalyst

SusMat
The utilization of single atoms (SAs) as trifunctional electrocatalyst for nitrogen reduction, oxygen reduction, and oxygen evolution reactions (NRR, ORR, and OER) is still a formidable challenge.
Hao Hu, Shuyuan Pan, Zhiyong Ma, Kaiyi Liu, Yi Li, Haifeng Bao, Chengwei Deng, Fang Luo, Zehui Yang   +8 more
doaj   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

Hematopoietic (stem) cells—The elixir of life?

FEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo, Jonah Anderson, Emilie Dinh Vedrenne, Noël Yeh Martín, Jette Lengefeld   +4 more
wiley   +1 more source

Elucidation of role of graphene in catalytic designs for electroreduction of oxygen

, 2018
Graphene is, in principle, a promising material for consideration as component (support, active site) of electrocatalytic materials, particularly with respect to reduction of oxygen, an electrode reaction of importance to low-temperature fuel cell ...
Dembinska, Beata, Di Noto, Vito, Kulesza, Pawel J., Miecznikowski, Krzysztof, Negro, Enrico, Rutkowska, Iwona A., Zak, Jerzy K., Zelenay, Piotr, Zoladek, Sylwia   +8 more
core   +1 more source

Bio-inspired nanocatalysts for the oxygen reduction reaction [PDF]

, 2013
Electrochemical conversions at fuel cell electrodes are complex processes. In particular, the oxygen reduction reaction has substantial overpotential limiting the electrical power output efficiency.
A Langner, AB Anderson, AGl Orive, AJ Bard, CT Carver, D Payer, DA Proshlyakov, DL Harris, F Cheng, F Rosei, FA Armstrong, G Battistuzzi, G Wu, GM Whitesides, H Spillmann, HA Gasteiger, I Horcas, J Guo, J Kim, JA Theobald, JAAW Elemans, JK Norskov, JV Barth, JV Barth, JV Barth, M Lackinger, MA Lingenfelder, MH Shao, N Lin, N Lin, P Gambardella, P Nordlund, R Miah, S Fabris, S Stepanow, S Stepanow, S Stepanow, SL Tait, SL Tait, T Classen, W Li, WB Tolman, Y Ye, Z Li   +43 more
core   +3 more sources

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

FEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang, Naoki Sunagawa, Toma Kashima, Kiyohiko Igarashi, Akimasa Miyanaga, Shinya Fushinobu   +5 more
wiley   +1 more source

Eletrocatálise das reações de oxidação de hidrogênio e de redução de oxigênio Electrocatalysis of the hydrogen oxidation and oxygen reduction reactions

Química Nova, 2005
This work discusses the electrocatalytic processes taking place in the polymer electrolyte fuel cell electrodes, specifically the hydrogen oxidation reaction (HOR) and the oxygen reduction reaction (ORR), because these are clear examples of ...
Edson A. Ticianelli, Giuseppe A. Camara, Luís G. R. A. Santos   +2 more
doaj   +1 more source

????????? ??????-?????? ???????????? ?????? ?????? ????????? ????????? [PDF]

, 2018
Department of Energy Engineering (Battery Science and Technology)Aprotic electrolyte based lithium-oxygen batteries are of considerable interest due to its ultrahigh theoretical specific energy density (1675 mAh per gram of oxygen) against the present ...
Cha, Aming
core