Results 21 to 30 of about 586,738 (280)

High selectivity for nitrogen in nitrate reduction on Ag–ZnO nanoparticles with formic acid as hole scavenger [PDF]

open access: yesشیمی کاربردی روز, 2012
A series of Ag-doped ZnO (Ag–ZnO) catalysts with a doping concentration up to 7wt% were prepared by a direct precipitation method. The prepared photocatalysts were characterized by XRD and TEM to determine their chemical composition and surface ...
Abdollah Fallah Shojaie, Foruzan Golriz
doaj   +1 more source

Catalytic Performance and Near-Surface X-ray Characterization of Titanium Hydride Electrodes for the Electrochemical Nitrate Reduction Reaction.

open access: yesJournal of the American Chemical Society, 2022
The electrochemical nitrate reduction reaction (NO3RR) on titanium introduces significant surface reconstruction and forms titanium hydride (TiHx, 0 < x ≤ 2). With ex situ grazing-incidence X-ray diffraction (GIXRD) and X-ray absorption spectroscopy (XAS)
Matthew J. Liu   +9 more
semanticscholar   +1 more source

Coordinative Stabilization of Single Bismuth Sites in a Carbon–Nitrogen Matrix to Generate Atom‐Efficient Catalysts for Electrochemical Nitrate Reduction to Ammonia

open access: yesAdvanced Science, 2023
Electrochemical nitrate reduction to ammonia powered by renewable electricity is not only a promising alternative to the established energy‐intense and non‐ecofriendly Haber–Bosch reaction for ammonia generation but also a future contributor to the ever ...
Wuyong Zhang   +10 more
doaj   +1 more source

Carbon nanotubes as a 1D template for the synthesis of air sensitive materials: about the confinement effect [PDF]

open access: yes, 2005
Cobalt ferrite and cobalt iron nanowires with an average diameter of 50 nm and lengths up to several micrometers were synthesized inside multi-walled carbon nanotubes (MWNTs) under mild reaction conditions, i.e.
Estournès, Claude   +5 more
core   +1 more source

Nitrate removal during Fe(III) bio-reduction in microbial-mediated iron redox cycling systems

open access: yesWater Science and Technology, 2021
Fe(III) bio-reduction provides a prospect of applying the iron redox cycle to nitrate remediation in the aquatic environment. The objective of this study was to realize multiple nitrate removals in the system containing Shewanella oneidensis MR-1 (S ...
Yongsheng Lu   +7 more
doaj   +1 more source

Electrochemical nitrate reduction in acid enables high-efficiency ammonia synthesis and high-voltage pollutes-based fuel cells

open access: yesNature Communications, 2023
Most current research is devoted to electrochemical nitrate reduction reaction for ammonia synthesis under alkaline/neutral media while the investigation of nitrate reduction under acidic conditions is rarely reported.
Rong Zhang   +11 more
doaj   +1 more source

Nickel hydroxide electrodeposition from nickel nitrate solutions: Mechanistic studies [PDF]

open access: yes, 2001
Nickel hydroxide electrodeposition by cathodic reduction of nitrate ions follows an electrochemical (EC) reaction followed by an irreversible chemical reaction mechanism. On subsequent cycling, the electrodeposited nickel hydroxide undergoes a reversible
Jayashree, R.S., Kamath, P.V.
core   +1 more source

Kinetics and influential factors of nanoscale iron-facilitated nitrate nitrogen removal

open access: yesTecnología y ciencias del agua, 2017
Song, Y. & Song, S. (March-April, 2017). Kinetics and influential factors of nanoscale iron-facilitated nitrate nitrogen removal. Water Technology and Sciences (in Spanish), 8(2), 93-103.
Song Yujia, Song Shoufa
doaj   +1 more source

Nitrogen removal in marine environments: recent findings and future research challenges [PDF]

open access: yes, 2005
Respiratory reduction of nitrate (denitrification) is recognized as the most important process converting biologically available (fixed) nitrogen to N2. In current N cycle models, a major proportion of global marine denitrification (50–70%) is assumed to
Aller, Robert Curwood   +7 more
core   +3 more sources

Monometallic cerium layered double hydroxide supported Pd-Ni nanoparticles as high performance catalysts for lignin hydrogenolysis [PDF]

open access: yes, 2020
Monometallic cerium layered double hydroxides (Ce-LDH) supports were successfully synthesized by a homogeneous alkalization route driven by hexamethylenetetramine (HMT).
Bruneel, Els   +7 more
core   +1 more source

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