Electrochemistry Application — Preparation of Bimetallic Conductive Metal-organic Framework Material Ni/Co-CAT for Electrocatalytic Oxygen Reduction 双金属导电金属有机框架材料 Ni/Co-CAT 的制备及其氧还原催化性能研究

7 measurement groups · 31 results

Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.

MFC COD removal

Ni-Co-CAT/carbon black/PTFE air cathode · Electrode

PBS buffer used as COD influent; MFC effluent collected when reactor voltage decreased to 0.05 V; standard curve and influent/effluent absorbance measured.

Atmosphere: air cathode; no aeration stated
Geometry: single-chamber MFC with catalyst-modified carbon-cloth air cathode
Context: composite cathodes containing Ni-CAT or Ni-Co-CAT plus carbon black/PTFE; carbon black and Pt/C controls
Measurement source: 753-754 · 2.3 · Figure 6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
carbon black MFC COD removal rate	57.01%	—	—	Figure Axis Rounded Reported	754 · 2.3 · Figure 6
carbon black MFC effluent COD	143.5 mg/L	—	—	Text Exact Reported	753 · 2.3 · Figure 6
MFC influent COD	333.8 mg/L	—	—	Text Exact Reported	753 · 2.3 · Figure 6
Ni-CAT MFC COD removal rate	43.78%	—	—	Figure Axis Rounded Reported	754 · 2.3 · Figure 6
Ni-CAT MFC effluent COD	187.7 mg/L	—	—	Text Exact Reported	753 · 2.3 · Figure 6
Ni-Co-CAT MFC COD removal rateMarked as a best value within this paper	72.49%	—	—	Text Exact Reported	753-754 · 2.3; 3 · Figure 6
Ni-Co-CAT MFC effluent CODMarked as a best value within this paper	91.8 mg/L	—	—	Text Exact Reported	753 · 2.3 · Figure 6
Pt/C MFC COD removal rate	49.52%	—	—	Figure Axis Rounded Reported	754 · 2.3 · Figure 6
Pt/C MFC effluent COD	168.5 mg/L	—	—	Text Exact Reported	753 · 2.3 · Figure 6

cyclic voltammetry (CV)

Voltammetry

Ni-Co-CAT/carbon black/PTFE air cathode · Electrode

Three-electrode system in 50 mmol/L phosphate buffer; electrode clip working-electrode base, graphite rod counter electrode, Hg/HgO reference; potential window -0.6 to 0.6 V; scan rate 0.01 V/s.

Geometry: air-cathode catalyst on carbon cloth
Context: composite cathodes containing Ni-CAT or Ni-Co-CAT plus carbon black/PTFE; carbon black and Pt/C controls
Measurement source: 750, 755 · 2.2; 4.5 · Figure 4a

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
carbon black anodic peak potential	0.15 V	—	—	Text Exact Reported	750 · 2.2 · Figure 4a
CV cathodic peak potential range	-0.6 to -0.5 V	—	range -0.6 to -0.5 V	Text Range	750 · 2.2 · Figure 4a

electrochemical impedance spectroscopy (EIS)

Impedance spectroscopy

Ni-Co-CAT/carbon black/PTFE air cathode · Electrode

Three-electrode system in 50 mmol/L phosphate buffer; amplitude 5.0 mV; frequency range 0.01-100 kHz; test potential open-circuit voltage; fitted with ZSimDemo 3.30d equivalent circuit.

Geometry: air-cathode catalyst on carbon cloth
Context: composite cathodes containing Ni-CAT or Ni-Co-CAT plus carbon black/PTFE; carbon black and Pt/C controls
Measurement source: 752, 755 · 2.2; 4.5 · Figure 4c

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
carbon black fitted ohmic internal resistanceMarked as a best value within this paper	9.23 Ω	—	—	Text Exact Reported	752 · 2.2 · Figure 4c
Ni-CAT fitted ohmic internal resistance	20.12 Ω	—	—	Text Exact Reported	752 · 2.2 · Figure 4c
Ni-Co-CAT fitted ohmic internal resistance	26.28 Ω	—	—	Text Exact Reported	752 · 2.2 · Figure 4c
Pt/C fitted ohmic internal resistance	9.58 Ω	—	—	Text Exact Reported	752 · 2.2 · Figure 4c

linear sweep voltammetry (LSV)

Voltammetry

Ni-Co-CAT/carbon black/PTFE air cathode · Electrode

Three-electrode system in 50 mmol/L phosphate buffer; potential window -0.6 to 0.6 V; scan rate 0.01 V/s.

Geometry: air-cathode catalyst on carbon cloth
Context: composite cathodes containing Ni-CAT or Ni-Co-CAT plus carbon black/PTFE; carbon black and Pt/C controls
Measurement source: 750, 755 · 2.2; 4.5 · Figure 4b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Ni-CAT half-wave potential	-0.45 V	—	—	Text Exact Reported	752 · 2.2 · Figure 4b
Ni-CAT limiting current density	2.18 mA/cm2	—	—	Text Exact Reported	750, 754 · 2.2; 3 · Figure 4b
Ni-Co-CAT half-wave potential	-0.46 V	—	—	Text Exact Reported	752 · 2.2 · Figure 4b
Ni-Co-CAT limiting current densityMarked as a best value within this paper	2.84 mA/cm2	—	—	Text Exact Reported	750, 754 · 2.2; 3 · Figure 4b

single-chamber air-cathode microbial fuel cell power-density and polarisation tests

Ni-Co-CAT/carbon black/PTFE air cathode · Electrode

28 mL single-chamber air-cathode MFC; anode carbon cloth pretreated with acetone; 30 ℃ constant-temperature dark box; inoculum from MFC effluent run >2 months mixed with buffer 1:10; started with 1000 Ω external resistor; power-density test after 1 h open circuit, 50-10000 Ω loads from high to low, 30 min stabilisation per load.

Temperature: 303.15
Atmosphere: air cathode; no aeration stated
Geometry: single-chamber MFC with catalyst-modified carbon-cloth air cathode
Context: composite cathodes containing Ni-CAT or Ni-Co-CAT plus carbon black/PTFE; carbon black and Pt/C controls
Measurement source: 752-754 · 2.3; 4.3; 4.4 · Figure 5a,b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
carbon black MFC maximum power density	90 mW/m2	—	—	Text Exact Reported	752 · 2.3 · Figure 5a
Ni-CAT MFC maximum power density	130 mW/m2	—	—	Text Exact Reported	752 · 2.3 · Figure 5a
Ni-Co-CAT MFC maximum power density	190 mW/m2	—	—	Text Exact Reported	752 · 2.3 · Figure 5a
Pt/C MFC maximum power densityMarked as a best value within this paper	220 mW/m2	—	—	Text Exact Reported	752 · 2.3 · Figure 5a

MFC output voltage time-course

Ni-Co-CAT/carbon black/PTFE air cathode · Electrode

MPS-010602 data logger recorded output voltage every 1 min over 30 days after reactor start.

Temperature: 303.15
Atmosphere: air cathode; no aeration stated
Geometry: single-chamber MFC with catalyst-modified carbon-cloth air cathode
Context: composite cathodes containing Ni-CAT or Ni-Co-CAT plus carbon black/PTFE; carbon black and Pt/C controls
Measurement source: 753-755 · 2.3; 4.5 · Figure 5c-f

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
carbon black MFC maximum output voltage	about 0.23 V	—	—	Text Approximate	753 · 2.3 · Figure 5e
Ni-CAT MFC maximum output voltage	about 0.26 V	—	—	Text Approximate	753 · 2.3 · Figure 5c
Ni-Co-CAT MFC maximum output voltage	about 0.31 V; 310 mV	310 mV	—	Text Approximate	748, 753 · Abstract; 2.3 · Figure 5d
Pt/C MFC maximum output voltageMarked as a best value within this paper	about 0.32 V	—	—	Text Approximate	753 · 2.3 · Figure 5f

Tafel analysis from LSV

Voltammetry Tafel and polarisation analysis

Ni-Co-CAT/carbon black/PTFE air cathode · Electrode

Tafel curves calculated from LSV using η = a + b lg i; current density in mA/cm2; Tafel slope in mV/dec.

Geometry: air-cathode catalyst on carbon cloth
Context: composite cathodes containing Ni-CAT or Ni-Co-CAT plus carbon black/PTFE; carbon black and Pt/C controls
Measurement source: 752, 755 · 2.2; 4.5 · Figure 4d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
carbon black Tafel slope	196 mV/dec	—	—	Text Exact Reported	752 · 2.2 · Figure 4d
Ni-CAT Tafel slope	173 mV/dec	—	—	Text Exact Reported	752 · 2.2 · Figure 4d
Ni-Co-CAT Tafel slope	146 mV/dec	—	—	Text Exact Reported	752 · 2.2 · Figure 4d
Pt/C Tafel slopeMarked as a best value within this paper	128 mV/dec	—	—	Figure Axis Rounded Reported	752 · 2.2 · Figure 4d