Geochimica et Cosmochimica Acta, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 1, 2025
Language: Английский
Sustainable Energy & Fuels, Journal Year: 2022, Volume and Issue: 6(14), P. 3324 - 3343
Published: Jan. 1, 2022
Advancements in UHS research should be matched with new field development studies on natural hydrogen exploration and production.
Language: Английский
Citations
123
Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)
Published: June 13, 2023
Abstract Around 50% of humankind relies on groundwater as a source drinking water. Here we investigate the age, geochemistry, and microbiology 138 samples from 95 monitoring wells (<250 m depth) located in 14 aquifers Canada. The geochemistry show consistent trends suggesting large-scale aerobic anaerobic hydrogen, methane, nitrogen, sulfur cycling carried out by diverse microbial communities. Older groundwaters, especially with organic carbon-rich strata, contain average more cells (up to 1.4 × 10 7 mL −1 ) than younger challenging current estimates subsurface cell abundances. We observe substantial concentrations dissolved oxygen (0.52 ± 0.12 mg L [mean SE]; n = 57) older groundwaters that seem support metabolisms ecosystems at an unprecedented scale. Metagenomics, isotope analyses mixing models indicate dark is produced situ via dismutation. ancient sustain productive communities highlight overlooked present past Earth.
Language: Английский
Citations
61
Renewable and Sustainable Energy Reviews, Journal Year: 2023, Volume and Issue: 189, P. 113888 - 113888
Published: Oct. 21, 2023
Beyond its role as an energy vector, a growing number of natural hydrogen sources and reservoirs are being discovered all over the globe, which could represent clean source. Although amounts in uncertain, they be vast, help decarbonize energy-intensive economic sectors facilitate transition. Natural is mainly produced through geochemical process known serpentinization, involves reaction water with low-silica, ferrous minerals. In favorable locations, can become trapped by impermeable rocks on way to atmosphere, forming reservoir. The safe exploitation numerous seems feasible current technology, several demonstration plants commissioned. may show variable composition require custom separation, purification, storage, distribution facilities, depending location intended use. By investing research, mid-term, more exploitable processes artificially stimulated new locations. long term, it possible leverage or engineer interplay between microorganisms geological substrates obtain other chemicals sustainable manner.
Language: Английский
Citations
49
Science, Journal Year: 2024, Volume and Issue: 383(6683), P. 618 - 621
Published: Feb. 8, 2024
Deep crustal production of hydrogen (H2) is a potential source primary energy if recoverable accumulations in geological formations are sufficiently large. We report direct measurements an elevated outgassing rate 84% (by volume) H2 from the deep underground Bulqizë chromite mine Albania. A minimum 200 tons vented annually mine's galleries, making it one largest recorded flow rates to date. cannot attribute flux solely release paleo-fluids trapped within rocks or present-day active and pervasive serpentinization ultramafic rocks; rather, our results demonstrate presence faulted reservoir deeply rooted Jurassic ophiolite massif. This discovery suggests that certain ophiolites may host economically useful gas.
Language: Английский
Citations
40
Science Advances, Journal Year: 2025, Volume and Issue: 11(4)
Published: Jan. 24, 2025
The origins of natural hydrogen in gas systems sedimentary basins and the capacity these to store remain inadequately understood, posing crucial questions for large-scale exploration hydrogen. This study reports on composition, stable carbon isotopic values, helium values samples collected from Qingshen deposit within volcanic rocks Songliao Basin. Natural primarily originates water radiolysis, water-rock interactions (WRI), mantle. contains 95.23 × 10 9 cubic meters abiotic CH 4 , which 15.24 was generated through conversion via Fischer-Tropsch synthesis, with maximum original reserves calculated be approximately 61.9 meters. We estimated that area has a total 572 radiolytic hydrogen, 248 WRI 127 mantle-derived
Language: Английский
Citations
4
Applied Energy, Journal Year: 2025, Volume and Issue: 383, P. 125398 - 125398
Published: Jan. 21, 2025
Language: Английский
Citations
3
International Journal of Hydrogen Energy, Journal Year: 2022, Volume and Issue: 47(84), P. 35588 - 35607
Published: Sept. 17, 2022
Language: Английский
Citations
41
Atmospheric chemistry and physics, Journal Year: 2024, Volume and Issue: 24(7), P. 4217 - 4229
Published: April 9, 2024
Abstract. Hydrogen (H2) is a promising low-carbon alternative to fossil fuels for many applications. However, significant gaps in our understanding of the atmospheric H2 budget limit ability predict impacts greater usage. Here we use NOAA dry air mole fraction observations from samples collected ground-based and ship platforms during 2010–2019 evaluate representation GFDL-AM4.1 chemistry-climate model. We find that base model configuration captures observed interhemispheric gradient well but underestimates surface concentration by about 10 ppb. Additionally, fails reproduce 1–2 ppb yr−1 mean increase at background stations. show cause most likely an underestimation current anthropogenic emissions, including potential leakages H2-producing facilities. also changes soil moisture, temperature, snow cover have caused magnitude sink, important removal mechanism H2, especially Northern Hemisphere. there remains uncertainty due fundamental removal, such as minimum moisture required uptake, which performed extensive sensitivity analyses. Finally, meridional mixing ratio its seasonality can provide constraints test refine parameterizations sink.
Language: Английский
Citations
11
Science Advances, Journal Year: 2024, Volume and Issue: 10(50)
Published: Dec. 13, 2024
Geologic hydrogen could be a low-carbon primary energy resource; however, the magnitude of Earth’s subsurface endowment has not yet been assessed. Knowledge occurrence and behavior natural on Earth combined with information from geologic analogs to construct mass balance model predict resource potential. Given associated uncertainty, stochastic results wide range values for potential in-place [10 3 10 million metric tons (Mt)] most probable value ~5.6 × 6 Mt. Although this is likely impractical recover, small fraction (e.g., 1 5 Mt) would supply projected needed reach net-zero carbon emissions ~200 years. This amount contains more (~1.4 16 MJ) than all proven gas reserves (~8.4 15 MJ). Study demonstrate that further research into understanding resources merited.
Language: Английский
Citations
10
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Journal Year: 2025, Volume and Issue: 11(1)
Published: Jan. 11, 2025
This work demonstrates the potential of generating H2 and geologically storing CO2 simultaneously in basalt formations. Basalt is able to produce CO2-saturated water at a rate 46.68 ppm d−1 under 25 °C, with generation rates leveling off after 6 days. At reaction temperature 60 cumulative hydrogen production for 5 days reaches 11,960 ppm, its daily more than 51 times that °C. The CO2-acidified experiment produced most H2, presumably due pH buffering system. water–solid interface provided by essential production. Scanning electron microscopy (SEM) results show substantial nano-sized mineral precipitate formed on surfaces. Electronic microprobe (EMPA) carbonate minerals are ambient conditions. Thermogravimetric analysis (TG) carbonation efficiency 4.17% 3 months. present experimental demonstrate technological feasibility producing energy transition while geologically, thus mitigating anthropogenic emissions greenhouse gas also creating revenue CCS.
Language: Английский
Citations
1