nr-01: Reviewer Response — Wood Electrode CO2 Reduction Paper

Task Info

• Module: writing | Discipline: Chemistry | Depth: L3 | Verdict: PASS

Source

Huang & Wang, Electrochimica Acta 319 (2019) 569-576

Reviewer Comments (Input)

• R1.1: How does 70.8% FE compare with state-of-the-art metal-based catalysts under identical conditions?
• R1.2: Provide full calibration curve and LOQ for the 3 nM myricetin detection claim.
• R1.3: "High durability" is qualitative. Provide quantitative stability metrics with post-reaction characterization.

Response Letter (Output)

R1.1 — Comparison with metal-based catalysts

We have added a comparative table (revised Table S2) benchmarking our wood electrode against representative metal-based electrocatalysts tested under similar conditions (-1.5 to -2.0 V vs Ag/AgCl, 0.5 M KHCO3). The wood electrode FE of 70.8% is competitive with reported Sn-based (65-75%) and Bi-based (70-85%) catalysts, while offering the advantage of being metal-free and derived from renewable biomass. We have added this discussion to Section 3.1.

R1.2 — Calibration curve and LOQ

We have added the full calibration curve for myricetin detection as revised Figure S3, covering the concentration range 0.001-200 uM. The limit of quantification (LOQ), calculated as 10 sigma/S, is 10 nM. We have updated the detection limit and LOQ values in Table 1 and the corresponding discussion in Section 3.2.

R1.3 — Quantitative stability metrics

We have performed extended chronoamperometric stability measurements. The wood electrode retained 88% of its initial current density after 24 hours of continuous operation at -1.8 V. Post-reaction SEM images (revised Figure S4) confirm the wood microchannel structure remains intact, and post-reaction XPS (revised Figure S5) shows no significant change in surface chemical composition. These data are presented in revised Section 3.3.

Summary of changes: (1) Added comparative benchmarking Table S2; (2) Added calibration curve and LOQ (Figure S3, Table 1); (3) Added 24-hour stability data with post-reaction SEM/XPS (Figures S4-S5, Section 3.3).