Results 71 to 80 of about 21,930 (288)

Scenarios of Deoxygenation of the Eastern Tropical North Pacific During the Past Millennium as a Window Into the Future of Oxygen Minimum Zones

Frontiers in Earth Science, 2019
Diverse studies predict global expansion of Oxygen Minimum Zones (OMZs) as a consequence of anthropogenic global warming. While the observed dissolved oxygen concentrations in many coastal regions are slowly decreasing, sediment core paleorecords often ...
Konstantin Choumiline, Ligia Pérez-Cruz, Andrew B. Gray, Steven M. Bates, Timothy W. Lyons   +4 more
doaj   +1 more source

Hydrodeoxygenation of stearic acid for the production of “green” diesel

Green Processing and Synthesis, 2014
The current work is devoted to the second-generation biodiesel production via fatty acids catalytic hydrodeoxygenation (HDO). Pd-containing catalysts based on polymeric matrix of hypercrosslinked polystyrene (HPS) with different metal loading were ...
Stepacheva Antonina A., Nikoshvili Linda Zh., Sulman Esther M., Matveeva Valentina G.   +3 more
doaj   +1 more source

Granular Bed Filtration of Coal Pyrolysis Gas: Effects of Media Reactivity on Dust Removal and Products

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Granular bed filtration is a promising technology for removing dust from high‐temperature coal pyrolysis gas. In this work, the reactivity of coal pyrolysis products over ceramsite, char, ultrastable Y‐type (USY) zeolite, and quartz particles was compared.
Shuaiqiang Yang, Guangchao Ding, Lin Du, Wenli Song, Songgeng Li   +4 more
wiley   +1 more source

Small scale purification and biophysical characterization of haptoglobin derived from human Cohn fraction IV

Biotechnology Progress, EarlyView.
Abstract Haptoglobin (Hp) is a polymorphic acute phase α‐2 glycoprotein found in plasma that plays a critical role in binding, neutralizing, and removing cell‐free hemoglobin (Hb) from the circulation. Under clinical conditions characterized by high levels of hemolysis, such as in patients with sickle cell disease (SCD), large quantities of cell‐free ...
Shuwei Lu, Mohd Asim Khan, Pedro Cabrales, David C. Irwin, Paul W. Buehler, Andre F. Palmer   +5 more
wiley   +1 more source

Scandium‐Catalyzed Highly Selective Deoxygenation of Alcohols by Using Hydrosilanes as Reductants

International audienceHerein, we present a straightforward and efficient scandiumbased catalytic system that enables highly selective reduction of σ bonds (C─O) in the presence of more reactive π (C═O) or O─H bonds.
Bousrez, Guillaume, Cantat, Thibault, Buhaibeh, Ruqaya, Nicolas, Emmanuel, Monsigny, Louis, Thyagarajan, Neethu   +5 more
core   +1 more source

Bismuth‐Based Semiconductors in Photocatalytic CO2 Reduction: Catalysts, Progress, and Future Perspectives

Carbon and Hydrogen, EarlyView.
This review systematically summarizes research progress on bismuth‐based semiconductor photocatalytic materials in the field of CO2 reduction. It focuses on elucidating the mechanisms by which four modification strategies—including heteroatom doping, oxygen vacancy engineering, microstructural control, and heterostructure fabrication—regulate band ...
Shuisen He, Guodong Zhang, Mengchi Guo, Song Zhong, Jie Yang, Tongrui Zhang, Xingye Zeng   +6 more
wiley   +1 more source

An Ambient Photocatalytic Approach to In‐Situ Prepare Cobalt/Cobalt Phosphide and Cobalt/Cobalt Phosphide@Graphene Heterojunction Nanomaterials With Optimized Charge Separation Effects for Highly Efficient Relayed Electrocatalytic NOX− Reduction to NH3

Carbon Energy, EarlyView.
A visible‐light‐driven ambient photocatalytic method in‐situ fabricates Co/CoP‐x and Co/CoP@rGO heterojunction with enhanced charge separation, enabling highly efficient relayed electrocatalytic NOx− reduction to NH3 with outstanding Faraday efficiency and ammonia productivity.
Xin Zhao, Chuanjun Wang, Shenjie Liu, Guoqiang Wang, Jing Dong, Chen Lei, Geoffrey I. N. Waterhouse, Jing Xu   +7 more
wiley   +1 more source

Application and research of deoxygenation

, 2013
Bakalářská práce je literární rešerší na téma ?Aplikace a výzkum v oblasti deoxygenace?. V první části práce jsou zmíněny významné suroviny pro deoxygenaci, které jsou rozděleny na obnovitelné a neobnovitelné. Dále jsou zmíněny rozkladné procesy biomasy.
Hájek, Roman
core   +1 more source

Gold Nanoparticle-Catalyzed Environmentally Benign Deoxygenation of Epoxides to Alkenes

Molecules, 2011
We have developed a highly efficient and green catalytic deoxygenation of epoxides to alkenes using gold nanoparticles (NPs) supported on hydrotalcite [HT: Mg6Al2CO3(OH)16] (Au/HT) with alcohols, CO/H2O or H2 as the reducing reagent.
Kiyotomi Kaneda, Koichiro Jitsukawa, Akifumi Noujima, Tomoo Mizugaki, Takato Mitsudome   +4 more
doaj   +1 more source

Coupled Photocatalytic Hydrogen Production With Selective Biomass Valorization via Active Sites Construction and Electron Transport Channels Engineering

Carbon Energy, EarlyView.
A ternary CdS/1T‐WS2/CNTs heterojunction is in‐situ constructed via hydrothermal method, which is used for photocatalytic biomass reforming (biomass‐derived alcohols, lignin). It exhibits outstanding performance: H2 production rate of 26.17 mmol/g/h for benzyl alcohol (BA), benzaldehyde (BD) generation rate of 8.29 mmol/g/h, 90.06% BD selectivity, 100%
Ermiao Liang, Yi Li, Xue Liu, Ke Cheng, Baoqi Li, Mingcong Xu, Sha Luo, Chunhui Ma, Zhijun Chen, Zupeng Chen, Shouxin Liu, Wei Li   +11 more
wiley   +1 more source