cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5286/isis.e.rb2400059-1
title: Confirming H2 Occupancy (Single/Multiple) in Clathrate Cages of Gas Hydrates in Nano-Confined Space Under Low Pressure via Neutron Diffraction (Rapid Access)

description: Blending natural gas (CH₄ + C₂H₆) with H₂ shows promise for efficient, lower-pressure H₂ storage in gas hydrates. However, further pressure reduction is necessary to achieve commercial viability for storage and transportation. Gas hydrates are high-density crystalline structures that typically form under high-pressure, low-temperature conditions. The most common cubic crystal structure, with a 1.2 nm lattice parameter, allows water molecules to form cavities stabilized by hydrogen bonds, which are occupied by gas molecules further stabilized by Van der Waals forces. Existing studies show that pure H₂ hydrates are formed at extremely high pressures (up to 200 MPa). However, when CH₄ and C₂H₆ are mixed with hydrogen, H₂ can be stored in hydrate cages at a significantly reduced pressure of 20 MPa. These results, however, are only valid in bulk media.
The presence of water-impregnated mesoporous activated carbon would enable a further reduction in the pressure required. This novel approach, previously unexplored, will require neutron diffraction to confirm H₂ occupancy in hydrate crystals within nanoconfined spaces (pore siz &lt; 2 nm). We aim to demonstrate and confirm the formation of mixed hydrates based on a CH₄/C₂H₆/H₂ gas mixture and the occupancy of H₂ in hydrate cages at pressures below 200 bar.
Detailed discussions have been conducted with Dr. Nick Funnell, Dr. Christopher Howard, and Dr. Craig Bull. This proposal is submitted for rapid access based on their recommendation.
DOI: 10.5286/isis.e.rb2400059
title: Confirming H2 Occupancy (Single/Multiple) in Clathrate Cages of Gas Hydrates in Nano-Confined Space Under Low Pressure via Neutron Diffraction (Rapid Access)

description: Blending natural gas (CH₄ + C₂H₆) with H₂ shows promise for efficient, lower-pressure H₂ storage in gas hydrates. However, further pressure reduction is necessary to achieve commercial viability for storage and transportation. Gas hydrates are high-density crystalline structures that typically form under high-pressure, low-temperature conditions. The most common cubic crystal structure, with a 1.2 nm lattice parameter, allows water molecules to form cavities stabilized by hydrogen bonds, which are occupied by gas molecules further stabilized by Van der Waals forces. Existing studies show that pure H₂ hydrates are formed at extremely high pressures (up to 200 MPa). However, when CH₄ and C₂H₆ are mixed with hydrogen, H₂ can be stored in hydrate cages at a significantly reduced pressure of 20 MPa. These results, however, are only valid in bulk media.
The presence of water-impregnated mesoporous activated carbon would enable a further reduction in the pressure required. This novel approach, previously unexplored, will require neutron diffraction to confirm H₂ occupancy in hydrate crystals within nanoconfined spaces (pore siz &lt; 2 nm). We aim to demonstrate and confirm the formation of mixed hydrates based on a CH₄/C₂H₆/H₂ gas mixture and the occupancy of H₂ in hydrate cages at pressures below 200 bar.
Detailed discussions have been conducted with Dr. Nick Funnell, Dr. Christopher Howard, and Dr. Craig Bull. This proposal is submitted for rapid access based on their recommendation.
DOI: 10.5286/isis.e.rb2520417-1
title: Possible spin liquid state in a novel triangular lattice antiferromagnet

description: An intricate interplay between emergent degrees of freedom in rare-earth-based geometrically frustrated magnets represents a promising platform for the search for enigmatic quantum spin liquids (QSL). Our recent study on a novel class of structurally perfect rare-earth-based triangular lattice family has revealed NdTa7O19 as a promising candidate for a QSL stabilized by the strong Ising anisotropy. Herein, we focus on a novel triangular lattice antiferromagnet HoTa7O19, from this family. Our preliminary magnetization and specific heat data do not show any signature of spin-freezing or magnetic ordering down to 75 mK despite a sizable antiferromagnetic interaction, Jex≈ 2 K between Ho3+ spins. Interestingly, the specific heat data shows a broad maximum around 1 K and another broad anomaly at 0.2 K possibly related to short-range spin correlations. This calls for more sensitive local-probe magnetic investigations that could unambiguously confirm the spin-liquid ground state and characterize the corresponding magnetic excitations at very low temperatures. Given the strongly localized nature of 4f orbitals, the exchange interactions of this rare-earth frustrated magnet are typically in the sub-Kelvin range. We plan to conduct the μSR experiment in the millikelvin range to investigate the possible spin liquid state and associated excitations.
DOI: 10.5286/isis.e.rb2520417
title: Possible spin liquid state in a novel triangular lattice antiferromagnet

description: An intricate interplay between emergent degrees of freedom in rare-earth-based geometrically frustrated magnets represents a promising platform for the search for enigmatic quantum spin liquids (QSL). Our recent study on a novel class of structurally perfect rare-earth-based triangular lattice family has revealed NdTa7O19 as a promising candidate for a QSL stabilized by the strong Ising anisotropy. Herein, we focus on a novel triangular lattice antiferromagnet HoTa7O19, from this family. Our preliminary magnetization and specific heat data do not show any signature of spin-freezing or magnetic ordering down to 75 mK despite a sizable antiferromagnetic interaction, Jex≈ 2 K between Ho3+ spins. Interestingly, the specific heat data shows a broad maximum around 1 K and another broad anomaly at 0.2 K possibly related to short-range spin correlations. This calls for more sensitive local-probe magnetic investigations that could unambiguously confirm the spin-liquid ground state and characterize the corresponding magnetic excitations at very low temperatures. Given the strongly localized nature of 4f orbitals, the exchange interactions of this rare-earth frustrated magnet are typically in the sub-Kelvin range. We plan to conduct the μSR experiment in the millikelvin range to investigate the possible spin liquid state and associated excitations.
DOI: 10.5286/isis.e.rb2520135-1
title: INS study of hydrogen adsorption on silica decorated Ni catalysts supported on biochar

description: Chemical modification of Ni-based alloys via silica-decoration method enables the morphological change of Ni nanoparticles from spherical to rough and anisotropic, where the number of step sites significantly increase thus enhancing the catalytic activity for hydrogenation reaction. This study will investigate the adsorption of H2 gas on the Si-NiFe/BCR compared to the undecorated catalysts in order to understand the interaction of adsorbed H2 molecules, H2 bound to metal Ni, and H2 spillover (reverse water gas shift reaction is plausible) using TOSCA (for the region below 2500 cm-1). INS is suitable technique to see details of hydrogenous species because of its high resolution and broad range. We aim to observe the state of hydrogen on the Ni at atmospheric pressure.
DOI: 10.5286/isis.e.rb2520135
title: INS study of hydrogen adsorption on silica decorated Ni catalysts supported on biochar

description: Chemical modification of Ni-based alloys via silica-decoration method enables the morphological change of Ni nanoparticles from spherical to rough and anisotropic, where the number of step sites significantly increase thus enhancing the catalytic activity for hydrogenation reaction. This study will investigate the adsorption of H2 gas on the Si-NiFe/BCR compared to the undecorated catalysts in order to understand the interaction of adsorbed H2 molecules, H2 bound to metal Ni, and H2 spillover (reverse water gas shift reaction is plausible) using TOSCA (for the region below 2500 cm-1). INS is suitable technique to see details of hydrogenous species because of its high resolution and broad range. We aim to observe the state of hydrogen on the Ni at atmospheric pressure.
DOI: 10.15468/dl.5j5ndh
title: Occurrence Download

description: A dataset containing 5974 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Fagus orientalis"
 ]
}

 The dataset includes 5974 records from 141 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0053345-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.xfgsmx
title: Occurrence Download

description: A dataset containing 1890 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Dinophyceae",
 "HasCoordinate is true",
 "Country is one of (Portugal)",
 "HasGeospatialIssue is false",
 "Year is greater than 2009"
 ]
}

 The dataset includes 1890 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0232310-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.erew9r
title: Occurrence Download

description: A dataset containing 11 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Calanthe trulliformis King & Pantl."
 ]
}

 The dataset includes 11 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0114103-230224095556074/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.5nftrx
title: Occurrence Download

description: A dataset containing 101 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Arthroleptides martiensseni Nieden, 1911"
 ]
}

 The dataset includes 101 records from 19 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0308413-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.duxp6h
title: Occurrence Download

description: A dataset containing 11020 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Anredera Juss."
 ]
}

 The dataset includes 11020 records from 380 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0114127-230224095556074/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.wwbdqn
title: Occurrence Download

description: A dataset containing 4391 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Aucuba japonica Thunb.)",
 "Geometry POLYGON((-9.36035 44.71551,-10.59082 42.81152,-11.82129 36.80928,-7.69043 36.17336,-3.38379 35.88905,3.12012 38.13456,9.18457 38.20366,11.7334 37.16032,12.78809 34.74161,17.09473 33.79741, 23.15918 34.23451,30.10254 32.62087,33.2666 32.99024,35.72754 35.03,33.00293 35.53223,28.69629 35.17381,28.34473 36.31513,25.7959 37.50973,24.91699 39.90974,28.78418 40.6473,30.71777 41.17865,36.87012 45.213,38.18848 46.98025,38.71582 47.7541,39.94629 47.93107,40.20996 49.61071,37.0459 50.34546,35.72754 50.40152,33.79395 52.26816,31.68457 51.94426,31.4209 53.27835,32.56348 53.43572,30.98145 54.77535,30.89355 55.52863,28.43262 56.02295,27.20215 57.65716,27.37793 58.30949,27.90527 59.17593,29.66309 59.88894,27.6416 60.58697,31.50879 62.75473,28.78418 69.83962,30.89355 70.28912,29.22363 71.55274,21.75293 71.30079,14.28223 70.14036,11.38184 67.47492,4.87793 63.66576,-5.53711 71.52491,-10.63477 71.69129,-21.5332 67.74276,-28.56445 65.36684,-24.3457 61.35461,-9.36035 44.71551))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1980",
 "Year is less than or equal to 2021"
 ]
}

 The dataset includes 4391 records from 80 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0232305-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ad83uw
title: Occurrence Download

description: A dataset containing 8 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Mesognathariidae",
 "Continent is one of (North America, South America)"
 ]
}

 The dataset includes 8 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0017329-230810091245214/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.myhrqr
title: Occurrence Download

description: A dataset containing 601 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Vulpia ligustica (All.) Link",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 601 records from 41 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0285590-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.se8cjs
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Calanthe truncicola Schltr."
 ]
}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0114111-230224095556074/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.jhkapz
title: Occurrence Download

description: A dataset listing the 2 species recorded in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-110.18761 17.60330,-87.21851 17.60330,-87.21851 26.79569,-110.18761 26.79569,-110.18761 17.60330))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Leopardus Gray, 1842",
 "Year 2022-2022"
 ]
}

 The dataset's 2 records were derived from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0014125-220831081235567/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.jbe4jg
title: Occurrence Download

description: A dataset containing 17983 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Aloysia Paláu"
 ]
}

 The dataset includes 17983 records from 423 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0114102-230224095556074/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ktcr47
title: Occurrence Download

description: A dataset containing 34 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Parapodisma etsukoana Kobayashi, 1986",
 "HasCoordinate is true",
 "Country is Japan",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 34 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0308424-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.jeupe7
title: Occurrence Download

description: A dataset containing 91 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Tolumnia bahamensis (Nash) Braem"
 ]
}

 The dataset includes 91 records from 23 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0017333-230810091245214/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.fygzs8
title: Occurrence Download

description: A dataset containing 555 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Egernia depressa (Günther, 1875)"
 ]
}

 The dataset includes 555 records from 29 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0285613-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.b5gjvk
title: Occurrence Download

description: A dataset containing 4635 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Eurycea lucifuga Rafinesque, 1822"
 ]
}

 The dataset includes 4635 records from 63 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0114108-230224095556074/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.jrbmgn
title: Occurrence Download

description: A dataset containing 12 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Cnemaspis mcguirei Grismer, Grismer, Wood & Chan, 2008"
 ]
}

 The dataset includes 12 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0285633-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.xy7ke4
title: Occurrence Download

description: A dataset containing 354 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Mexico",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Leopardus wiedii (Schinz, 1821)",
 "Year 1989-2023"
 ]
}

 The dataset includes 354 records from 29 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0001827-230828120925497/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.86msku
title: Occurrence Download

description: A dataset containing 156690 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is one of (Human Observation, Machine Observation)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Squalus acanthias Linnaeus, 1758"
 ]
}

 The dataset includes 156690 records from 93 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0027485-230810091245214/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.xxmv5u
title: Occurrence Download

description: A dataset containing 196 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Cubophis caymanus (Garman, 1887)"
 ]
}

 The dataset includes 196 records from 11 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0285600-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.br7e7s
title: Occurrence Download

description: A dataset containing 113 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Tolpis webbii Sch.Bip."
 ]
}

 The dataset includes 113 records from 27 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0017325-230810091245214/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ur3j9e
title: Occurrence Download

description: A dataset containing 9382 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Sclerophrys regularis (Reuss, 1833)"
 ]
}

 The dataset includes 9382 records from 87 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0232382-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.9zaszw
title: Occurrence Download

description: A dataset containing 1388 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is one of (Human Observation, Machine Observation)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Pristiophorus cirratus (Latham, 1794)"
 ]
}

 The dataset includes 1388 records from 21 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0027507-230810091245214/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.r3h3ye
title: Occurrence Download

description: A dataset containing 9 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Pristimantis sagittulus (Lehr, Aguilar & Duellman, 2004)"
 ]
}

 The dataset includes 9 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0308410-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.3cgue8
title: Occurrence Download

description: A dataset containing 4300 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Berberis darwinii Hook."
 ]
}

 The dataset includes 4300 records from 193 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0034219-230810091245214/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.vzmca3
title: Occurrence Download

description: A dataset containing 897 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Pappia fissilis (Berk. & M.A.Curtis) Zmitr.)",
 "Geometry POLYGON((-9.36035 44.71551,-10.59082 42.81152,-11.82129 36.80928,-7.69043 36.17336,-3.38379 35.88905,3.12012 38.13456,9.18457 38.20366,11.7334 37.16032,12.78809 34.74161,17.09473 33.79741, 23.15918 34.23451,30.10254 32.62087,33.2666 32.99024,35.72754 35.03,33.00293 35.53223,28.69629 35.17381,28.34473 36.31513,25.7959 37.50973,24.91699 39.90974,28.78418 40.6473,30.71777 41.17865,36.87012 45.213,38.18848 46.98025,38.71582 47.7541,39.94629 47.93107,40.20996 49.61071,37.0459 50.34546,35.72754 50.40152,33.79395 52.26816,31.68457 51.94426,31.4209 53.27835,32.56348 53.43572,30.98145 54.77535,30.89355 55.52863,28.43262 56.02295,27.20215 57.65716,27.37793 58.30949,27.90527 59.17593,29.66309 59.88894,27.6416 60.58697,31.50879 62.75473,28.78418 69.83962,30.89355 70.28912,29.22363 71.55274,21.75293 71.30079,14.28223 70.14036,11.38184 67.47492,4.87793 63.66576,-5.53711 71.52491,-10.63477 71.69129,-21.5332 67.74276,-28.56445 65.36684,-24.3457 61.35461,-9.36035 44.71551))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1980",
 "Year is less than or equal to 2021"
 ]
}

 The dataset includes 897 records from 43 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0232315-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.coh0ia
title: Occurrence Download

description: A dataset containing 18012 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Helianthemum oelandicum (L.) DC.",
 "HasCoordinate is TRUE",
 "HasGeospatialIssue is FALSE"
 ]
}

 The dataset includes 18012 records from 50 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0043147-180508205500799/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.