Results 151 to 160 of about 385,270 (239)

Detection of Atmospherically Relevant Mixed Mercuric Compounds by Chemical Ionization Mass Spectrometry. [PDF]

open access: yesACS Earth Space Chem
Bahramsari MB   +5 more
europepmc   +1 more source

Embedding a Dinuclear Ru─Pt Photocatalyst Into Polyampholytic Graft Copolymer Matrix Enables Prolonged Hydrogen Evolution While Allowing Catalyst Repair

open access: yesChemistry – A European Journal, EarlyView.
A unimolecular polyampholytic graft copolymer matrix provides a protective confinement for an electrostatically embedded tetrapyridophenazine‐bridged heterodinuclear Ru‐Pt hydrogen evolving photocatalyst. The matrix slows the degradation kinetics of the catalyst and at the same time does not hinder its repair by ammonium persulfate.
Yurii Utievskyi   +10 more
wiley   +1 more source

Continental outflow shapes the circum-Antarctic pattern of summertime atmospheric mercury depletion zones. [PDF]

open access: yesNat Commun
Xie Z   +7 more
europepmc   +1 more source

Towards Halogen Bonding MOFs: Networking With a Polyiodinated and Perfluorinated Terphenyl Ligand and Divalent Zinc

open access: yesChemistry – A European Journal, EarlyView.
One ligand, three new architectures with different intermolecular interactions: a polyhalogenated terphenyl linker with carboxyl groups coordinates Zn2+ to form (i) a metal‐containing hydrogen‐bonded organic framework; (ii) a metal‐organic framework or (iii) one‐dimensional metal‐organic chains with intermolecular halogen bonding and hydrogen bonding ...
Elad Gaver   +8 more
wiley   +1 more source

Experimental Investigation on the Effect of Dry and Wet Activation Processes on the Morphological Properties of Activated Carbon Derived From Sugarcane Bagasse

open access: yesCarbon Innovation, EarlyView.
Synthesis and characterization of sugarcane bagasse‐derived activated carbon via KOH‐assisted dry and wet activation. ABSTRACT This study explores the impact of activation processes on the morphological properties of activated carbon. Carbon is initially produced through vacuum pyrolysis at three temperatures (500°C, 600°C, and 700°C), with a heating ...
Sachin Channappa Hallad   +5 more
wiley   +1 more source

Catalytic Oxidation of CO and VOC in Flue Gas of Coffee Roasting Machines

open access: yesChemie Ingenieur Technik, EarlyView.
Platinum‐coated cordierite monoliths effectively oxidized CO and VOC in coffee roasting exhaust with higher Pt loadings lowering light‐off temperatures. Scaled up 90 g/ft3 catalyst in a 5 kg roaster achieved 96% CO and around 78% VOC conversion at 350°C, highlighting stable operation requires flue gas temperatures ≥350°C.
Till Hauswald   +3 more
wiley   +1 more source

Experimental methods in chemical engineering: Temperature‐programmed oxidation—TPO

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Temperature‐programmed oxidation (TPO) probes the oxidative capacity and redox properties of solid materials—catalysts, metal oxides, perovskites, and carbonaceous deposits. It identifies coke type, distribution, and reactivity. TPO instruments pass an oxidizing gas (diluted O2$$ {\mathrm{O}}_2 $$, air, or less commonly N2O$$ {\mathrm{N}}_2 ...
Gholamreza Roohollahi   +7 more
wiley   +1 more source

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