A significant correlation between kinetics of nitrobenzene reduction by sulfide and electron transfer capacity of mediating dissolved humic substances

2020 ◽  
Vol 740 ◽  
pp. 139911
Author(s):  
Yafang Liu ◽  
Xiaojian Zheng ◽  
Shujun Yin ◽  
Chenhui Wei ◽  
Dongqiang Zhu
Keyword(s):  
Electron Transfer ◽  
Humic Substances ◽  
Nitrobenzene Reduction ◽  
Dissolved Humic Substances ◽  
Kinetics Of ◽  
Electron Transfer Capacity

scholarly journals Responses of the electron transfer capacity of soil humic substances to agricultural land-use types

RSC Advances ◽  
2018 ◽  
Vol 8 (57) ◽  
pp. 32588-32596 ◽  
Author(s):  
Beidou Xi ◽  
Zhurui Tang ◽  
Jie Jiang ◽  
Wenbing Tan ◽  
Caihong Huang ◽  
...  
Keyword(s):  
Land Use ◽  
Electron Transfer ◽  
Humic Substances ◽  
Agricultural Land ◽  
Agricultural Land Use ◽  
Chemical Structures ◽  
Land Use Types ◽  
Electron Transfer Capacity

Agricultural land-use types could affect the transformation and decomposition of HS in soils, and thus further change the intrinsic chemical structures associated with ETC.

scholarly journals Humic substances and its electron transfer capacity during composting: A review

2020 ◽  
Vol 194 ◽  
pp. 05034
Author(s):  
Yu Dai ◽  
Yu-lan Lu ◽  
Jun Li ◽  
Hai-guang Qin ◽  
Fei-yang Xia ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Humic Substances ◽  
Formation Mechanism ◽  
Pollution Control ◽  
Oxygen Supply ◽  
Raw Materials ◽  
Transfer Mechanism ◽  
Research Directions ◽  
Electron Transfer Mechanism ◽  
Electron Transfer Capacity

Humic substances (HS) are important product during composting, which play a key role in the maturity of compost, and its electron transfer characteristics have significant applications in the reduction of pollutants. We focus on the structure and composition characteristics and formation mechanism of HS during the composting. The effects of composting raw materials, additives, microorganisms and oxygen supply conditions on the formation of HS were reviewed. The electron transfer mechanism of compost HS was summarized as well as the structural and environmental factors affect the electron transfer of HS. The applications of HS in soil pollution control and water treatment are introduced. The research directions of HS formation mechanism, electron transfer mechanism and its application are also prospected.

Formation and mineralization kinetics of dissolved humic substances from aquatic macrophytes decomposition

2016 ◽  
Vol 18 (4) ◽  
pp. 1252-1264 ◽  
Author(s):  
Argos Willian de Almeida Assunção ◽  
Brayan Pétrick Souza ◽  
Marcela Bianchessi da Cunha-Santino ◽  
Irineu Bianchini
Keyword(s):  
Humic Substances ◽  
Aquatic Macrophytes ◽  
Mineralization Kinetics ◽  
Dissolved Humic Substances ◽  
Kinetics Of

scholarly journals Single entity electrochemistry and the electron transfer kinetics of hydrazine oxidation

Nano Research ◽  
2021 ◽  
Author(s):  
Ruiyang Miao ◽  
Lidong Shao ◽  
Richard G. Compton
Keyword(s):  
Electron Transfer ◽  
Bulk Solution ◽  
Relative Contribution ◽  
Rate Determining Step ◽  
Multistep Process ◽  
Ph Range ◽  
Electro Catalytic Oxidation ◽  
Single Particle Impact ◽  
The Impact ◽  
Kinetics Of

AbstractThe mechanism and kinetics of the electro-catalytic oxidation of hydrazine by graphene oxide platelets randomly decorated with palladium nanoparticles are deduced using single particle impact electrochemical measurements in buffered aqueous solutions across the pH range 2–11. Both hydrazine, N2H4, and protonated hydrazine N2H5+ are shown to be electroactive following Butler-Volmer kinetics, of which the relative contribution is strongly pH-dependent. The negligible interconversion between N2H4 and N2H5+ due to the sufficiently short timescale of the impact voltammetry, allows the analysis of the two electron transfer rates from impact signals thus reflecting the composition of the bulk solution at the pH in question. In this way the rate determining step in the oxidation of each specie is deduced to be a one electron step in which no protons are released and so likely corresponds to the initial formation of a very short-lived radical cation either in solution or adsorbed on the platelet. Overall the work establishes a generic method for the elucidation of the rate determining electron transfer in a multistep process free from any complexity imposed by preceding or following chemical reactions which occur on the timescale of conventional voltammetry.

scholarly journals Kinetics of electron transfer from NADH to the Escherichia coli nitric oxide reductase flavorubredoxin

FEBS Journal ◽  
2006 ◽  
Vol 274 (3) ◽  
pp. 677-686 ◽  
Author(s):  
João B. Vicente ◽  
Francesca M. Scandurra ◽  
João V. Rodrigues ◽  
Maurizio Brunori ◽  
Paolo Sarti ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Escherichia Coli ◽  
Electron Transfer ◽  
Nitric Oxide Reductase ◽  
Kinetics Of
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