Liu P., Yan J., Huang H. et al. · Chemical Engineering Journal · 2023 · 143134
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.
Cu1Co1HHTP is the best catalyst in the serial CuxCoyHHTP set for nitrate electroreduction to ammonia, with 299.9 umol h-1 cm-2 NH3 yield and 96.4% FE at -0.6 V.
Caveat: Electrode includes SCCB/Nafion/carbon cloth; SCCB control was reported inert toward NO3RR.
5 · 3.2 · Fig. 4c/Table 2 · Linked to 4 structured results
The paper repeatedly describes the HHTP MOFs as conductive/electron-transfer favourable, but does not report a direct electrical conductivity value for these samples in the provided main text or SI text.
Caveat: EIS Rct and Cdl are electrochemical proxies, not intrinsic conductivity measurements.
1-2 · Abstract/Introduction · Linked to 1 structured result
Cu/Co bimetallic HHTP conductive MOFs are formed by replacing Cu with Co while retaining the HHTP cMOF framework, although crystallinity decreases with Co content.
Caveat: The full lattice table is available only through the rendered SI surrogate; Cu2Co1HHTP and Cu1Co2HHTP lattice parameters are not listed in Table S1.
2-3 · 3.1 · Fig. 1b/Table S1/Table S2 · Linked to 8 structured results
Co heteroatoms shift the Cu electronic structure toward higher electron density and a d-band centre closer to the Fermi level, improving nitrate/intermediate adsorption on Cu sites.
Caveat: Mechanistic interpretation combines XPS shifts and DFT slab models.
4-7 · 3.1-3.2 · Fig. 3/Fig. 6 · Linked to 4 structured results
DFT attributes enhanced NO3RR activity and NH3 selectivity on Cu1Co1HHTP to lower NO3 adsorption, lower *NO2 to *NO reduction free energy, and lower PDS Delta G than CuHHTP.
Caveat: Computational values are model-dependent; no raw calculation files were provided.
6-7 · 3.2 · Fig. 6c · Linked to 6 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| CoHHTP conductive MOFBrowse family: Co₃(HHTP)₂ / Co–HHTP | CoHHTP nominalCo-O4 nodes · HHTP | 2D · PristineCoHHTP HHTP framework with sharp (100) peak at 4.82 degree | 2 · 3.1 · Fig. 1b |
| Cu1Co1HHTP bimetallic conductive MOFBrowse family: Cu/Co–HHTP family | Cu1Co1HHTP nominal; XPS Cu 2.60 at%, Co 2.86 at%mixed Cu/Co-O4 nodes · HHTP | 2D · PristineAA-stacking conductive HHTP framework with approximately 1:1 Cu/Co composition | 3 · 3.1 · Fig. 3/Table S2 |
| Cu1Co2HHTP bimetallic conductive MOFBrowse family: Cu/Co–HHTP family | Cu1Co2HHTP nominal feeding ratiomixed Cu/Co-O4 nodes · HHTP | 2D · PristineCu/Co bimetallic HHTP cMOF | 2 · 2.2 · Table 1 |
| Cu2Co1HHTP bimetallic conductive MOFBrowse family: Cu/Co–HHTP family | Cu2Co1HHTP nominal feeding ratiomixed Cu/Co-O4 nodes · HHTP | 2D · PristineCu/Co bimetallic HHTP cMOF from partial replacement of Cu by Co | 2 · 3.1 · Table 1 |
| CuHHTP conductive MOFBrowse family: Cu₃(HHTP)₂ / Cu–HHTP | Cu-HHTP framework; nominal CuHHTPCu-O4 nodes · 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) | 2D · Pristine2D extended rigid plane, pi-d conjugated, AA-stacking CuHHTP | 2 · 3.1 · Fig. 1b |
| Cu1Co1HHTP slab modelBrowse family: Cu/Co–HHTP family | Cu1Co1HHTP slabCu sites with Co heteroatoms · HHTP | 2D · Model SystemDFT slab model with optimized intermediate adsorption | 7 · Fig. 6 · Fig. 6d |
| CuHHTP slab modelBrowse family: Cu₃(HHTP)₂ / Cu–HHTP | CuHHTP slabCu sites · HHTP | 2D · Model SystemDFT slab model | 1.4 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| CoHHTP/SCCB/Nafion on carbon cloth electroderesearch_0727__mat__mat_co_hhtp | Electrode · Composite Sample · Composite | drop-cast catalyst ink, dried at 298 K, Nafion overlayercarbon cloth | 2 · 2.2/2.3 · Table 1 |
| CoHHTP powderresearch_0727__mat__mat_co_hhtp | Powder · Pristine Control · Pristine Framework | as-prepared | 2 · 2.2/2.3 · Table 1 |
| Cu1Co1HHTP/SCCB/Nafion on carbon cloth electroderesearch_0727__mat__mat_cu1co1_hhtp | Electrode · Target Sample · Composite | drop-cast catalyst ink, dried at 298 K, Nafion overlayercarbon cloth | 2 · 2.2/2.3 · Table 1 |
| Cu1Co1HHTP powderresearch_0727__mat__mat_cu1co1_hhtp | Powder · Target Sample · Mixed Metal | as-prepared | 2 · 2.2/2.3 · Table 1 |
| Cu1Co2HHTP/SCCB/Nafion on carbon cloth electroderesearch_0727__mat__mat_cu1co2_hhtp | Electrode · Composite Sample · Composite | drop-cast catalyst ink, dried at 298 K, Nafion overlayercarbon cloth | 2 · 2.2/2.3 · Table 1 |
| Cu1Co2HHTP powderresearch_0727__mat__mat_cu1co2_hhtp | Powder · Target Sample · Mixed Metal | as-prepared | 2 · 2.2/2.3 · Table 1 |
| Cu2Co1HHTP/SCCB/Nafion on carbon cloth electroderesearch_0727__mat__mat_cu2co1_hhtp | Electrode · Composite Sample · Composite | drop-cast catalyst ink, dried at 298 K, Nafion overlayercarbon cloth | 2 · 2.2/2.3 · Table 1 |
| Cu2Co1HHTP powderresearch_0727__mat__mat_cu2co1_hhtp | Powder · Target Sample · Mixed Metal | as-prepared | 2 · 2.2/2.3 · Table 1 |
| CuHHTP/SCCB/Nafion on carbon cloth electroderesearch_0727__mat__mat_cu_hhtp | Electrode · Composite Sample · Composite | drop-cast catalyst ink, dried at 298 K, Nafion overlayercarbon cloth | 2 · 2.2/2.3 · Table 1 |
| CuHHTP powderresearch_0727__mat__mat_cu_hhtp | Powder · Pristine Control · Pristine Framework | as-prepared | 2 · 2.2/2.3 · Table 1 |
| Cu1Co1HHTP slabresearch_0727__mat__mat_model_cu1co1_hhtp_slab | Model · Model System · Model | geometry-optimised slab | 1.4 |
| CuHHTP slabresearch_0727__mat__mat_model_cu_hhtp_slab | Model · Model System · Model | geometry-optimised slab | 1.4 |