H2 production enhancement in underground coal gasification with steam addition: Effect of injection conditions

Feng, Lele; Dong, Maifan; Qin, Botao; Pang, Jiabao; Babaee, Saeideh

doi:10.1016/j.energy.2024.130379

Cited by 14 publications

(1 citation statement)

References 29 publications

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“…Hydrogen (H 2 ) energy is a renewable green energy carrier with a high energy density value per unit mass (120–142 MJ kg −1 ), 1,2 which is the best alternative to conventional fossil fuels. Currently, the main methods for H 2 production include steam reforming, 3,4 coal gasification, 5,6 the natural gas method, 7,8 industrial by-products for H 2 production, 9,10 electrocatalytic 11–13 and photocatalytic water splitting 14,15 and so on. Among these H 2 production methods, electrolysis of water utilizes renewable energy to produce H 2 , with low energy consumption, less greenhouse gas release during the whole preparation process, and the obtained H 2 is of high purity and low impurity content.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen production catalysed by atomically precise metal clusters

Song,

Cai,

Zhu

2024

Nanoscale

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Section: Introductionmentioning

confidence: 99%

Hydrogen production catalysed by atomically precise metal clusters

Song,

Cai,

Zhu

2024

Nanoscale

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Polyphenylene‐Based Anion Exchange Membranes with Robust Hydrophobic Components Designed for High‐Performance and Durable Anion Exchange Membrane Water Electrolyzers Using Non‐PGM Anode Catalysts

Liu,

Miyatake,

Mahmoud

et al. 2024

Advanced Energy Materials

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Alkaline‐stable, highly conductive anion exchange membranes (AEMs) are attentively expected solid polymer electrolytes that contribute to achieving high performance and durability for anion exchange membrane water electrolyzers (AEMWEs). The technical challenges of AEMs mainly stem from the degradation of the polymer backbones, side chains, and anchoring cationic groups. Herein, new and stable AEMs (QTAF) are designed using 3,3′′‐dichloro‐2′,5′‐bis(trifluoromethyl)‐1,1′:4′,1′′‐terphenyl (TFP) monomers as the hydrophobic component incorporated into the polyphenylene backbone and 3,3′‐(2,7‐dichloro‐9H‐fluorene‐9,9‐diyl)bis(N,N‐dimethylpropane‐1‐amine) (AF) monomers as the hydrophilic component. After tuning the copolymer composition, the highest hydroxide ion conductivity (168.7 mS cm−1 at 80 °C) is achieved with the QTAF‐3.0 membrane. The QTAF‐3.0 membrane survives in harsh alkaline conditions (8 M KOH solution, 80 °C), with high conductivity (75.8 mS cm−1) after 810 h. A water electrolysis cell with QTAF‐3.0 membrane and non‐noble Ni0.8Co0.2O anode catalyst operates stably at a constant current density (1.0 A cm−2) for 1000 h with a negligible voltage increase rate of 1.1 µV h−1 after the initial voltage increase. The water electrolysis performance of the post‐tested QTAF‐3.0 cell is 1.83 V, only a 6.4% increase from the initial performance at 2.0 A cm−2, suggesting the high potential of the QTAF‐3.0 membrane for practical AEMWE applications.

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