Humic Acid Redox Potential and Electron Accumulation Data

Experimental data from controlled electron storage experiments on humic acids, showing redox potential shifts from +103 mV to –511 mV. The dataset, authored by Cheng Zhao and uploaded on figshare in April 2026, includes electrochemical analysis results and isotopic labeling data for methanogenesis pathways. It reveals a functional switch in electron transfer behavior based on electron accumulation.

Use Cases

• Modeling electron transfer function in natural organic matter based on redox potential data
• Analyzing the impact of electron accumulation on methanogenesis rates based on CH₄:CO₂ ratio and ¹³CH₄ yield
• Investigating the role of humic acids as electron acceptors or shuttles based on redox potential-dependent functional response
• Studying the effect of excess organic carbon on electron storage and methanogenesis promotion in sediments

Strengths

• Redox potential measurements span a defined range from +103 mV to –511 mV
• Identifies a clear functional threshold at –246 mV corresponding to 50% electron accumulation capacity
• Includes isotopic labeling results showing a ¹³CH₄ yield increase from 52.8 to 78.2 μmol

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• The dataset is 108.0 KB, indicating a limited scope

Provenance

Source

figshare

Collection Method

Controlled electron storage experiments combined with electrochemical analysis

Freshness

Last updated 2026-04-10 07:14:13; freshness should be verified