http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20160002610-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3584903efe1babebbd056e855a2cc2b3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N27-026 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N27-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N27-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F17-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N27-22 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F17-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N27-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N27-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N27-02 |
| filingDate | 2015-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7fc5f41b258b792385d625c56f4b84a3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_88ecae02c54a1c5d888cc7ca484cdb11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c8fc8ddcaf3b1f4de45192d4dceb2ec0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_94d1ae6b95f3471eb9dee727f939ba93 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3ee4e4c5a0a99a4be9d82457a632278e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0dd7169cf30766ded2b66ad11a81c465 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_569bbd7c9a10888b5d6c4a5c8c2155b8 |
| publicationDate | 2016-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20160002610-A |
| titleOfInvention | Pneumatochemical Immittance Spectroscopy and Pneumatochemical Intermittent Titration Technique for Hydrogen Storage Kinetics |
| abstract | The present invention provides a method for qualitatively and quantitatively analyzing kinetics information of a hydrogen storage material, as well as a method for obtaining a chemical diffusivity (D) of a hydrogen storage material. The chemical diffusion coefficient and kinetic information of the hydrogen storage material were analyzed by the pneumatochemical imitation spectroscopy (PnIS) analysis method and the pneumatochemical titration technique (PnITT) Time domain analysis. In other words, the time and frequency range to be analyzed from the PCI hydrogen pressure attenuation curve was determined and the chemical diffusion coefficient and kinetic information according to each hydrogen storage state (SoS) were derived. The PnIS method is a method of transforming time-domain information into Fourier transformed frequency domain information. The hydrogen pressure attenuation pattern is represented by an inductance effect in the frequency domain and appears as an inductive loop on the emittance plane And fitting it to an equivalent circuit or reading it visually to easily obtain chemical diffusion coefficient and kinetic information. The results of the PnIS analysis confirmed that the analytical results of PnITT were qualitatively and quantitatively consistent with the chemical diffusion coefficient and various kinetic information. In the embodiment of the present invention, PnIS analysis and PnITT were applied to the hydrogen storage material Mg / MgH 2 . Pressure-composition-isothermal (PCI) data was obtained from the Sievert-type measuring instrument at 325 ° C containing information on the hydrogen pressure relaxation of Mg / MgH 2 . At each point, the effective volume ratio λ was obtained, which was linearly regressed and averaged with λ not having a negative value in the flat section. The hydrogen pressure attenuation curve is Fourier-Laplace transformed to represent the inductive loop of the emittance plane and fitted or visually read by an equivalent circuit to determine the chemical diffusion coefficient and kinetic I got the information. It was found that the chemical diffusion resistance increases and the chemical diffusion coefficient decreases as the MgH 2 phase increases from Mg to Mg in the flattened section of the PCI, which is confirmed to follow the shrinking-core model. The time constant and the decay time were obtained by fitting the hydrogen pressure attenuation curve with PnITT, and the chemical diffusion coefficient and the self-diffusivity were obtained therefrom. The chemical diffusion coefficient and the magnetic diffusion coefficient gradually decrease as the hydrogen storage amount increases in the flat section, which qualitatively and quantitatively agrees with the result obtained by the PnIS analysis. |
| priorityDate | 2015-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.