Liu Z., Wang J., Liu G. et al. · Nanoscale · 2024 · 19322-19334
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.
NCCG-15 gives the best hydrogen evolution performance among the tested samples, far exceeding CG and pristine NC.
Caveat: Main text does not fully report illumination intensity, catalyst loading, or complete reaction conditions; SI is missing.
6 · Photocatalytic hydrogen evolution activity analysis · Fig. 6 · Linked to 5 structured results
NiCo-MOF grows in situ on CG, producing a tightly bonded NCCG interface that combines CG and NC features.
Caveat: Exact structural model and stoichiometry are not provided in the main text.
4 · SEM and TEM analyses · Fig. 3 · Linked to 3 structured results
Introducing CG reduces the photogenerated carrier recombination of NC and improves carrier migration.
Caveat: PL/TRPL trends support the claim but the paper does not provide raw decay fits beyond table values.
7 · Fluorescence analysis · Fig. 7 and Table 2 · Linked to 3 structured results
Using Cu powder to prepare graphdiyne gives CG metal-like properties and a narrow band gap, supporting faster charge transfer.
Caveat: Metal-like behaviour is inferred by the authors from Cu-containing CG, band gap, UPS, and electrochemical trends rather than direct conductivity values.
1 · Abstract · Linked to 3 structured results
The CG/NC contact forms an ohmic interface that promotes electron transfer from NC to CG and spatial separation of holes on NC.
Caveat: Ohmic-contact conclusion is mechanistic interpretation based on XPS/UPS/band alignment and electrochemical trends; no direct contact I-V measurement is reported.
10 · Possible mechanism of photocatalytic hydrogen evolution · Fig. 11 · Linked to 5 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Cu-graphdiyne (CG) | Cu/GDY, exact composition not reportedelemental Cu in graphdiyne-derived material · graphdiyne carbon network from hexaethynylbenzene-type coupling | 2D · Compositelamellar graphdiyne grown on Cu powder; Cu reflections assigned to elemental Cu PDF#70-3038 | 2 · Preparation of Cu-GDY (CG) · Fig. 1 |
| Eosin Y (EY) | photosensitizer, formula not reported | unknown · Model Systemmolecular photosensitizer used in photocatalytic and fluorescence measurements | 7 · Fluorescence analysis · Table 2 |
| NiCo-MOF (NC) | Ni/Co trimesate MOF, exact stoichiometry not reportedNi2+ and Co2+ centres · 1,3,5-trimesic acid / trimesate | 3D · Pristinespherical bimetallic NiCo-MOF; low-crystallinity XRD with (200), (003), and (006) reflections at 10.9, 12.3, and 25.6 degrees | 1 · Introduction |
| NCCG-X composite catalysts | NiCo-MOF/Cu-GDYNi2+/Co2+ MOF centres plus elemental Cu in CG · 1,3,5-trimesate in NC; graphdiyne carbon in CG | 3D · Compositespherical NiCo-MOF in situ anchored on two-dimensional CG; XRD shows CG (111) and NC (200) reflections | 2 · Preparation of the NiCo-MOF (NC) and the composite catalyst · Fig. 1 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Cu-GDY (CG)research_0887__mat__mat_cg | Powder · Composite Component · Derived Carbon | Cu powder reduced from copper sulfate with ascorbic acid, dried under nitrogen, then used to prepare Cu-GDY according to previous studiesCu powder catalyst/support | 2 · Preparation of Cu-GDY (CG) |
| EY photosensitizer comparisonresearch_0887__mat__mat_ey | Unknown · Paper Level Unspecified · Unknown | used as photosensitizer and fluorescence lifetime comparator; 10 mg EY added every 10 h in cycling experiment | 6 · Photocatalytic hydrogen evolution activity analysis · Fig. 6c |
| pure NiCo-MOF (NC)research_0887__mat__mat_nc | Powder · Pristine Control · Mixed Metal | solvothermally prepared similarly to NCCG samples but without CG; washed with alcohol and dried under vacuum at 70 Cnone | 2 · Preparation of the NiCo-MOF (NC) and the composite catalyst |
| NCCG-10research_0887__mat__mat_nccg | Powder · Composite Sample · Composite | in situ NC growth on CG with CG amount adjusted to obtain NCCG-10CG powder | 2 · Preparation of the NiCo-MOF (NC) and the composite catalyst |
| NCCG-15research_0887__mat__mat_nccg | Powder · Target Sample · Composite | 10 mg CG dispersed in 30 mL DMF, mixed with Ni and Co nitrates and 1,3,5-trimesic acid, solvothermally treated at 170 C for 16 h, washed with alcohol, and vacuum dried at 70 CCG powder | 2 · Preparation of the NiCo-MOF (NC) and the composite catalyst |
| NCCG-20research_0887__mat__mat_nccg | Powder · Composite Sample · Composite | in situ NC growth on CG with CG amount adjusted to obtain NCCG-20CG powder | 2 · Preparation of the NiCo-MOF (NC) and the composite catalyst |
| NCCG-25research_0887__mat__mat_nccg | Powder · Composite Sample · Composite | in situ NC growth on CG with CG amount adjusted to obtain NCCG-25CG powder | 2 · Preparation of the NiCo-MOF (NC) and the composite catalyst |
| NCCG-5research_0887__mat__mat_nccg | Powder · Composite Sample · Composite | in situ NC growth on CG with CG amount adjusted to obtain NCCG-5CG powder | 2 · Preparation of the NiCo-MOF (NC) and the composite catalyst |