Results 81 to 90 of about 428,674 (286)

Engineered Cyanobacteria‐Hydrogel Microecological System for Oxygen Reprogramming Synergizes Immunomodulation With Anabolism in Osteoarthritis Therapy

Advanced Science, EarlyView.
An injectable cyanobacteria‐laden hydrogel enables light‐dependent oxygen metabolism engineering for osteoarthritis therapy. Photosynthetic oxygen release under red light irradiation suppresses synovial inflammation via HIF‐1α inhibition and M2 macrophage polarization, while respiratory oxygen consumption in darkness stabilizes chondrocyte HIF‐1α to ...
Lerong Yang, Chong Shen, Hongjun Huang, Siyi Liu, Zeyu Huang, Licheng Xi, Huan Cao, Li Zheng, Zainen Qin   +8 more
wiley   +1 more source

Synthesis, Characterization and Shape-Dependent Catalytic CO Oxidation Performance of Ruthenium Oxide Nanomaterials: Influence of Polymer Surfactant

Applied Sciences, 2015
Ruthenium oxide nano-catalysts supported on mesoporous γ-Al2O3 have been prepared by co-precipitation method and tested for CO oxidation. The effect of polyethylene glycol (PEG) on the properties of the catalyst was studied.
Antony Ananth, Duncan H. Gregory, Young Sun Mok   +2 more
doaj   +1 more source

Disentangling Elemental Roles in an Amorphous Medium‐Entropy Electrocatalyst for Oxygen Evolution

Advanced Science, EarlyView.
An amorphous medium‐entropy FeCoNiMo‐a catalyst with a unique nanoring architecture is synthesized via a solvothermal method. The catalyst exhibits exceptional stability in anion exchange membrane water electrolysis, maintaining stable operation for over 600 h at 1 A cm−2.
Jinhu Wu, Xianjun Cao, Cheng Gong, Dongfang Li, Yaojie Lei, Daojin Zhou, Pengpeng Zhang, Zeliang Wu, Bin Yu, Xingwang Peng, Bernt Johannessen, Somnath Chanda Roy, Jinqiang Zhang, Hao Liu, Yufei Zhao   +14 more
wiley   +1 more source

Effectiveness of strain and dopants on breaking the activity-stability trade-off of RuO2 acidic oxygen evolution electrocatalysts

Nature Communications
Ruthenium dioxide electrocatalysts for acidic oxygen evolution reaction suffer from mediocre activity and rather instability induced by high ruthenium-oxygen covalency.
Yang Liu, Yixuan Wang, Hao Li, Min Gyu Kim, Ziyang Duan, Kainat Talat, Jin Yong Lee, Mingbo Wu, Hyoyoung Lee   +8 more
doaj   +1 more source

Scalable Multilayer PTFE‐Reinforced Membranes for Durable, High‐Current‐Density Hydroxide Exchange Membrane Water Electrolysis in Dilute Alkali

Advanced Science, EarlyView.
Low‐Tg HEMs are designed to improve membrane‐electrode adhesion by promoting intimate contact with catalyst layers. After hydration, the membrane develops a hydrogel‐like network that supports water uptake and ion transport while retaining mechanical robustness.
Zhiwei Ren, Yun Zhao, Rui Zhang, Tao Wei, Yingran Zhu, Yangkai Han, Tongzhou Li, Haitao Zhang, Zhigang Shao   +8 more
wiley   +1 more source

Ruthenium-Based Macromolecules as Potential Catalysts in Homogeneous and Heterogeneous Phases for the Utilization of Carbon Dioxide

, 2019
Ruthenium-containing tetraphenylporphyrin (Ru-TPP) molecule was prepared, and the structural elucidation was confirmed using 1H nuclear magnetic resonance (NMR), CHN, and mass spectral analyses. The incorporation of ruthenium ion into the cavities of the
Ayyamperumal Sakthivel, Kaiprathu Anjali, Kaiprathu Anjali (7166171), Ayyamperumal Sakthivel (1711072), Jayaraj Christopher, Jayaraj Christopher (7166174)   +5 more
core   +1 more source

Strong Metal‐Support Interaction Driven Janus Reconstruction in PtRu Alloys for Low‐Temperature Hydrogen Storage

Advanced Science, EarlyView.
Strong metal‐support interactions (SMSI) drive the spontaneous segregation of RuPt alloy into Janus nanoparticles on CeO2, spatially partitioning Pt‐rich domains for H2 dissociation and Ru‐rich domains for toluene adsorption. This Janus nanocatalysts yield a turnover frequency of 10 906 h−1 for toluene hydrogenation at 50 °C, which is 6.7 times that of
Xingyu Zhang, Haiqiang Bai, Wenbin Li, You Wang, Yunhua Xu, Sai Zhang   +5 more
wiley   +1 more source

Ultrathin 2D In2O3 Nanosheets Confining Cu Single Atoms Synergized With Oxygen Vacancies for High Selectivity of Photocatalytic Reduction of CO2 to CO

Advanced Science, EarlyView.
In this work, we constructed an ultrathin two‐dimensional (2D) In2O3 nanosheet (In2O3‐Ns) structure based on oxygen vacancies (OV)‐rich defects and low crystallinity to anchor Cu single atoms (Cu SAs) and synthesized Cu/In2O3‐Ns photocatalysts. ABSTRACT In this work, we constructed an ultrathin two‐dimensional (2D) In2O3 nanosheet (In2O3‐Ns) structure ...
Yueying Yang, Xuan Xiang, Jiali Ren, Ying Bian, Xinyu Wang, Xiaoyang Lu, Yanjun Xue, Porun Liu, Cheng‐Hao Chuang, Xiaoli Zhang, Jian Tian   +10 more
wiley   +1 more source

Base-free transfer hydrogenation of carbonyl substrates catalysed by neutral ruthenium(salicylaldimine) complexes: Inhibitory effect of visible light

Results in Chemistry
In this study, a series of neutral ruthenium salicylaldimine complexes were synthesized and evaluated as catalysts for the base-free transfer hydrogenation of carbonyl compounds, including acetophenone.
N. Visagie, M.C. Joseph, E.D. Maggott, S.F. Mapolie   +3 more
doaj   +1 more source

A tutorial review of stereoretentive olefin metathesis based on ruthenium dithiolate catalysts

Beilstein Journal of Organic Chemistry, 2018
Stereoretentive olefin metathesis based on ruthenium dithiolate complexes has become a very active field of research within the past years. This unique catalyst class is able to kinetically produce both Z- and E-alkenes in high stereochemical purity ...
Daniel S. Müller, Olivier Baslé, Marc Mauduit   +2 more
doaj   +1 more source