Kashani F.Z., Mohsennia M. · International Journal of Hydrogen Energy · 2025 · 348-357
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.
Co-Ni(TPA)-2 is the optimum Co-doped sample for electrochemical hydrogen storage, with a 20th discharge capacity of 4000 mAh g-1.
Caveat: Capacity is application-test-derived under the authors' electrode preparation and KOH electrolyte conditions.
355 · 3.2. Textural characterization and investigation of hydrogen storage · Fig. 7f · Linked to 3 structured results
Co-Ni(TPA)-2 shows superior anti-corrosion behaviour relative to Zn-Ni(TPA)-2 and Ni(TPA), based on its more positive Ecorr.
Caveat: Based on potentiodynamic polarization Ecorr values; corrosion current density was not extracted/reported in text.
355 · 3.2. Textural characterization and investigation of hydrogen storage · Fig. 10 · Linked to 3 structured results
Zn and Co doping preserved the Ni(TPA) framework structure and did not form detectable secondary phases.
Caveat: Based on powder XRD as reported; no independent CIF/refinement data supplied.
350 · 3.1. Characterization of synthesized MOFs · Fig. 1 · Linked to 2 structured results
Excess Co doping can reduce hydrogen adsorption/storage by blocking active sites and accessible pore space.
Caveat: Mechanistic explanation is inferred by authors from the non-monotonic Co-loading trend; no direct active-site blocking measurement is shown.
355 · 3.2. Textural characterization and investigation of hydrogen storage · Fig. 7f · Linked to 4 structured results
Co incorporation reduces charge-transfer resistance and is interpreted as improving electrical conductivity and electrochemical performance.
Caveat: Electrical conductivity is inferred from EIS charge-transfer resistance rather than measured as a direct solid-state conductivity.
355 · 3.2. Textural characterization and investigation of hydrogen storage · Fig. 9 · Linked to 3 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Bare copper foam electrode | Cu | unknown · UnknownNon-MOF electrode control | 349 · 2.3.1. Electrochemical measurement |
| Co-doped Ni(TPA) MOF; Co-Ni(TPA) | Co-doped [Ni3(OH)2(C8H4O4)2(H2O)4].2H2ONi with Co dopant · terephthalic acid / terephthalate (TPA) | 2D · PristineDoped bimetallic Ni(TPA) framework retaining Ni(TPA) XRD peaks with no secondary phase reported | 350 · 3.1. Characterization of synthesized MOFs · Fig. 1 |
| Ni-terephthalic acid MOF; Ni(TPA) | [Ni3(OH)2(C8H4O4)2(H2O)4].2H2ONi · terephthalic acid / terephthalate (TPA, C8H6O4 precursor) | 2D · PristineLayered topology; XRD matched CCDC No. 638866, space group P-1 | 350 · 3.1. Characterization of synthesized MOFs · Fig. 1 |
| Zn-doped Ni(TPA) MOF; Zn-Ni(TPA) | Zn-doped [Ni3(OH)2(C8H4O4)2(H2O)4].2H2ONi with Zn dopant · terephthalic acid / terephthalate (TPA) | 2D · PristineDoped bimetallic Ni(TPA) framework retaining Ni(TPA) XRD peaks with no secondary phase reported | 350 · 3.1. Characterization of synthesized MOFs · Fig. 1 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Bare copper foam electroderesearch_0367__mat__bare_cu_foam | Electrode · Pristine Control · Unknown | Cleaned with THF and DI water, dried at 60 C for 2 hporous copper foam, 1 cm2 | 349 · 2.3.1. Electrochemical measurement |
| Co-Ni(TPA)-1research_0367__mat__co_ni_tpa | Powder · Target Sample · Doped | CoCl2:Ni(NO3)2.6H2O:TPA weight ratio 8:34:58; used in Co-doping amount comparison | 349 · 2.3. Preparation of Zn- and Co-doped Ni(TPA) MOFs |
| Co-Ni(TPA)-1 electrode on Cu foamresearch_0367__mat__co_ni_tpa | Electrode · Target Sample · Doped | MOF dispersed in ethanol, drop-cast onto cleaned Cu foam, dried at 60 C for 2 hporous copper foam, 1 cm2 · thin layer; 0.1 mg MOF coating reported | 355 · 3.2. Textural characterization and investigation of hydrogen storage · Fig. 7f |
| Co-Ni(TPA)-2research_0367__mat__co_ni_tpa | Powder · Target Sample · Doped | CoCl2:Ni(NO3)2.6H2O:TPA weight ratio 15:31:54; characterised by XRD/SEM/EDS/BET/FTIR and used for electrochemical comparison | 355 · 3.2. Textural characterization and investigation of hydrogen storage · Fig. 7 |
| Co-Ni(TPA)-2 electrode on Cu foamresearch_0367__mat__co_ni_tpa | Electrode · Target Sample · Doped | MOF dispersed in ethanol, drop-cast onto cleaned Cu foam, dried at 60 C for 2 hporous copper foam, 1 cm2 · thin layer; 0.1 mg MOF coating reported | 349 · 2.3.1. Electrochemical measurement |
| Co-Ni(TPA)-3research_0367__mat__co_ni_tpa | Powder · Target Sample · Doped | CoCl2:Ni(NO3)2.6H2O:TPA weight ratio 26:27:47; used in Co-doping amount comparison | 355 · 3.2. Textural characterization and investigation of hydrogen storage · Fig. 7f |
| Co-Ni(TPA)-3 electrode on Cu foamresearch_0367__mat__co_ni_tpa | Electrode · Target Sample · Doped | MOF dispersed in ethanol, drop-cast onto cleaned Cu foam, dried at 60 C for 2 hporous copper foam, 1 cm2 · thin layer; 0.1 mg MOF coating reported | 355 · 3.2. Textural characterization and investigation of hydrogen storage · Fig. 7f |
| Ni(TPA) electrode on Cu foamresearch_0367__mat__ni_tpa | Electrode · Pristine Control · Pristine Framework | MOF dispersed in ethanol, drop-cast onto cleaned Cu foam, dried at 60 C for 2 hporous copper foam, 1 cm2 · thin layer; 0.1 mg MOF coating reported | 349 · 2.3.1. Electrochemical measurement |
| Ni(TPA)research_0367__mat__ni_tpa | Powder · Pristine Control · Pristine Framework | Green powder, washed with ethanol and DI water, dried overnight at 100 C under vacuum | 349 · 2.2. Preparation of pure Ni(TPA) MOF |
| Zn-Ni(TPA)-1research_0367__mat__zn_ni_tpa | Powder · Target Sample · Doped | ZnCl2:Ni(NO3)2.6H2O:TPA weight ratio 8:34:58; solvothermal product dried at 120 C for 12 h | 349 · 2.3. Preparation of Zn- and Co-doped Ni(TPA) MOFs |
| Zn-Ni(TPA)-2research_0367__mat__zn_ni_tpa | Powder · Target Sample · Doped | ZnCl2:Ni(NO3)2.6H2O:TPA weight ratio 15:31:54; characterised by XRD/SEM/BET/FTIR and used for electrochemical comparison | 349 · 2.3. Preparation of Zn- and Co-doped Ni(TPA) MOFs |
| Zn-Ni(TPA)-2 electrode on Cu foamresearch_0367__mat__zn_ni_tpa | Electrode · Target Sample · Doped | MOF dispersed in ethanol, drop-cast onto cleaned Cu foam, dried at 60 C for 2 hporous copper foam, 1 cm2 · thin layer; 0.1 mg MOF coating reported | 353 · 3.2. Textural characterization and investigation of hydrogen storage |
| Zn-Ni(TPA)-3research_0367__mat__zn_ni_tpa | Powder · Target Sample · Doped | ZnCl2:Ni(NO3)2.6H2O:TPA weight ratio 26:27:47; solvothermal product dried at 120 C for 12 h | 349 · 2.3. Preparation of Zn- and Co-doped Ni(TPA) MOFs |