Chen Z., Qian Y., Zhang L. et al. · Journal of Electroanalytical Chemistry · 2022 · 115985
Open a family to keep every result attached to its sample, method and conditions.
Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.
The target electrode can assay H2O2 released from living HeLa cells under PMA-induced oxidative stress.
Caveat: The text has a PMA-concentration wording inconsistency for the first H2O2 value; assignment follows Fig. 5 caption and surrounding text.
6 · 3.4. Determination of H2O2 released from live cells · Fig. 5 · Linked to 3 structured results
The NiPd@Ni3HHTP2/GC electrode is a selective and stable amperometric H2O2 sensor with a 1 uM to 45 mM linear range and 0.8 uM detection limit.
Caveat: Performance is reported in N2-saturated PBS under the authors' measurement conditions.
5 · 3.3. Analytical performance of NiPd@Ni3HTTP2/GC towards H2O2 · Fig. 4 · Linked to 6 structured results
Ni3HHTP2 acts as a conductive MOF mediator/supporter that improves electron transfer at the electrode interface and enhances NiPd electrocatalytic H2O2 reduction.
Caveat: No standalone bulk conductivity value for Ni3HHTP2 was reported in the paper; the transport evidence is electrochemical-interface based.
4 · 3.2. Electrochemical characterization of different modified electrodes · Fig. 3; Fig. S4; Fig. S8 · Linked to 8 structured results
NiPd incorporation by mixing did not change the original Ni3HHTP2 framework structure while Ni-Pd crystalline peaks appeared.
Caveat: Based on XRD comparison; no CIF/refinement was supplied.
3 · 3.1. Characterization of hybrid nanomaterials · Fig. S2-S3 · Linked to 3 structured results
H2O2 reduction at NiPd@Ni3HHTP2/GC is surface-controlled and approximately a two-electron process.
Caveat: The scan-rate equation was read from the figure label; the electron-transfer number was calculated by the authors from Koutecky-Levich analysis.
4 · 3.2. Electrochemical characterization of different modified electrodes · Fig. 3C-D; Fig. S7 · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| glassy carbon electrode | C | unknown · Model SystemCommercial glassy carbon electrode substrate/control, 3.0 mm diameter. | 2 · 2.4. Preparation of different modified electrodes |
| Ni3HHTP2Browse family: Ni₃(HHTP)₂ / Ni–HHTP | Ni3HHTP2Ni(II) · 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) | unknown · PristineConductive MOF with pXRD peaks at 2theta = 4.7, 9.2, 13.9 and 26.8 deg assigned to (100), (200), (3-10) and (004) planes. | 3 · 3.1. Characterization of hybrid nanomaterials · Fig. 1A-C |
| NiPd@Ni3HHTP2Browse family: Ni₃(HHTP)₂ / Ni–HHTP | NiPd@Ni3HHTP2Ni(II) framework nodes plus NiPd nanoparticles · HHTP in Ni3HHTP2 framework | unknown · CompositeHybrid nanomaterial retaining Ni3HHTP2 structure with Ni-Pd peaks at 2theta = 40.3 and 46.9 deg. | 3 · 3.1. Characterization of hybrid nanomaterials · Fig. 1G-H; Fig. S2-S3 |
| nickel palladium nanoparticles | NiPdNi and Pd | 0D · Model SystemHollow NiPd nanospheres with Ni and Pd elemental distribution. | 3 · 3.1. Characterization of hybrid nanomaterials · Fig. 1D-F |
| NiPd@ZIF-8Browse family: ZIF-8 / Zn(mIm)₂ | NiPd@ZIF-8Zn framework plus NiPd nanoparticles · imidazolate linker, not specified in this paper | 3D · CompositeNiPd nanoparticles mixed with ZIF-8 control substrate by the same electrode-fabrication method. | 4 · 3.2. Electrochemical characterization of different modified electrodes · Fig. 3E-F; Fig. S8 |
| ZIF-8Browse family: ZIF-8 / Zn(mIm)₂ | ZIF-8Zn · imidazolate linker, not specified in this paper | 3D · PristineCommercial non-conductive MOF control substrate. | 2 · 2.1. Materials and reagents |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| bare glassy carbon electroderesearch_0890__mat__mat_glassy_carbon | Electrode · Model System · Model | Polished, rinsed, sonicated and dried under nitrogen.glassy carbon electrode, 3.0 mm diameter | 2 · 2.4. Preparation of different modified electrodes |
| Ni3HHTP2/GCresearch_0890__mat__mat_ni3hhtp2 | Electrode · Pristine Control · Pristine Framework | Drop-cast and dried at room temperature.glassy carbon electrode | 2 · 2.4. Preparation of different modified electrodes |
| Ni3HHTP2 powderresearch_0890__mat__mat_ni3hhtp2 | Powder · Pristine Control · Pristine Framework | Washed with deionized water and acetone; vacuum dried. | 2 · 2.3. Synthesis of NiPd@Ni3HHTP2 hybrid |
| NiPd/GCresearch_0890__mat__mat_nipd_np | Electrode · Composite Component · Mixed Metal | Drop-cast and dried at room temperature.glassy carbon electrode | 2 · 2.4. Preparation of different modified electrodes |
| NiPd@Ni3HHTP2/GCresearch_0890__mat__mat_nipd_ni3hhtp2 | Electrode · Target Sample · Composite | 5 uL NiPd@Ni3HHTP2 hybrid drop-cast on GC and dried at room temperature.glassy carbon electrode | 2 · 2.4. Preparation of different modified electrodes |
| NiPd@Ni3HHTP2 hybrid nanomaterialsresearch_0890__mat__mat_nipd_ni3hhtp2 | Unknown · Target Sample · Composite | Ni3HHTP2 water solution mixed with NiPd NP solution at 10:1 volume ratio and sonicated at 4 C. | 2 · 2.3. Synthesis of NiPd@Ni3HHTP2 hybrid |
| NiPd NPs dispersionresearch_0890__mat__mat_nipd_np | Unknown · Composite Component · Mixed Metal | Washed and centrifuged, then dispersed in 5 mL water. | 2 · 2.3. Synthesis of NiPd@Ni3HHTP2 hybrid |
| NiPd@ZIF-8/GCresearch_0890__mat__mat_nipd_zif8 | Electrode · Model System · Composite | Prepared by the same drop-casting method as NiPd@Ni3HHTP2/GC.glassy carbon electrode | 2 · 2.4. Preparation of different modified electrodes |
| commercial ZIF-8 powderresearch_0890__mat__mat_zif8 | Powder · Model System · Pristine Framework | Used as purchased from XFNANO Co., Ltd. | 2 · 2.1. Materials and reagents |