Primary studyCore evidenceTransport Physics

Sensing interface based on electrodeposited Cu-BTC microporous film for electrochemical detection of the painkiller paracetamol

Tien Dat N., Ngoc Tien N., Ngan N.T.T. et al. · Analyst · 2023 · 1777-1785

2materials
4samples
3synthesis routes
19measurements
44results
6claims and caveats

Evidence map

Open a family to keep every result attached to its sample, method and conditions.

Author interpretations and caveats

Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.

Application RelevanceSupport assessment: High

Cu-BTC/GCE gives improved paracetamol sensing versus bare GCE, with higher sensitivity, lower LOD and smaller pseudo-redox peak separation.

Caveat: Application is in PBS and one traditional medicine sample; long-term stability is not reported.

p007-p008 / 1783-1784 · 3.5; Conclusions · Fig. 7; Table 2 · Linked to 6 structured results

CaveatSupport assessment: High

The authors state that future work should introduce electron donor or acceptor centres to ligands to improve MOF conductivity.

Caveat: This is a forward-looking caveat, not a demonstrated result.

p005 / 1781 · 3.3 Electrochemical behavior · Linked to 1 structured result

Structure Property LinkSupport assessment: Medium

The authors attribute improved conductivity/electron transfer partly to the two-dimensional structure of the Cu-BTC film enabling in-plane pi-delocalisation and out-of-plane pi-conjugation.

Caveat: The structure-property explanation is interpretive; direct conductivity and crystallographic data for this film are not reported.

p006 / 1782 · 3.4 Oxidation of paracetamol · Linked to 2 structured results

Structure Property LinkSupport assessment: Medium

Microporous Cu-BTC film is proposed to improve adsorption of paracetamol and contribute to sensing performance.

Caveat: Pore size and active surface area were not directly measured in this work.

p006 / 1782 · 3.4 Oxidation of paracetamol · Linked to 3 structured results

Synthesis MechanismSupport assessment: High

Et3N probase increases local pH near the electrode and accelerates deprotonation, facilitating growth of homogeneous Cu-BTC film on GCE.

Caveat: Adhesion failure on FTO is noted but the detailed reason is not resolved.

p002-p003 / 1778-1779 · 3.1 Electrodeposition · Scheme 1 · Linked to 2 structured results

Transport MechanismSupport assessment: High

Electrodeposited Cu-BTC film markedly improves interfacial electron transfer compared with bare GCE, as shown by lower RCT, smaller redox-probe peak separation, higher currents and higher Ks.

Caveat: Evidence is electrochemical interfacial transport; no direct bulk electronic conductivity measurement is reported.

p005 / 1781 · 3.3 Electrochemical behavior · Fig. 5; Table 1 · Linked to 5 structured results

Material identities

Names and aliases are kept exactly within the paper’s own identity model.

MaterialCompositionStructure contextSource
bare glassy carbon electrodeCunknown · Model SystemCommercial glassy carbon electrode control, diameter 3 mm.p002 / 1778 · Experimental
Cu-BTCBrowse family: HKUST-1 / Cu₃(BTC)₂Cu3(BTC)2 / Cu3(TMA)2(H2O)3 framework assignmentdimeric copper(II) carboxylate units; copper ion centres · benzene-1,3,5-tricarboxylate (BTC, trimesate)2D · PristineTwo-dimensional Cu-BTC film; octahedral Cu-BTC crystals observed by SEM; coordination confirmed by Raman/FTIR.p001 / 1777 · Abstract and Introduction

Sample register

Sample form, processing state and composition status define the context for measurements.

Show 4 sample records
SampleForm and roleProcessing and geometrySource
Bare GCEresearch_0407__mat__mat_bare_gceElectrode · Pristine Control · ModelPolished with 0.3 um Al powder, rinsed with distilled water and dried.glassy carbon electrode · not applicablep002 / 1778 · Experimental
Cu-BTC/GCE, 15 min filmresearch_0407__mat__mat_cu_btcElectrode · Target Sample · Pristine FrameworkElectrodeposition time increased to 15 min for synthesis-time comparison.glassy carbon electrode · not reported; larger amount expected than 5 min filmp005 · SI Fig. 8S · Fig. 8S
Cu-BTC/GCE, optimised 5 min filmresearch_0407__mat__mat_cu_btcElectrode · Target Sample · Pristine FrameworkElectrodeposited in DMF by chronoamperometry at -1.1 V vs Ag/AgCl for 5 min; deposition charge -7.46 mC.glassy carbon electrode (GCE), d = 3 mm · not reportedp003 / 1779 · 3.1 Electrodeposition of Cu-BTC onto a GCE · Fig. 3S and Fig. 4S referenced
Cu-BTC/GCE, 60 min morphology sampleresearch_0407__mat__mat_cu_btcElectrode · Target Sample · Pristine FrameworkLong reaction time of 60 min for SEM visualisation of crystals.short glassy carbon electrode · not reportedp003 / 1779 · 3.2 Morphology and structure studies · Fig. 2