Blue hydrogen: Current status and future technologies

Evolving sustainable energy technologies and assessments through global research networks: advancing the role of blue hydrogen for a cleaner future

“…24 Thus, the implementation of this category of hydrogen on a commercial scale is still seen as ambitious. 25 However, introducing blue hydrogen into the energy system presents favourable parameters. 26,27 An organized and equipped infrastructure is essential to efficiently guarantee management from the initial production processes to this fuel's safe storage and distribution.…”

Recent progress on the photocatalytic hydrogen evolution reaction over a metal sulfide cocatalyst-mediated carbon nitride system

“…However, with the continuous exploitation of mineral resources, fossil resources are gradually being depleted, posing a huge threat to the ecology. 3–5 To solve the energy crisis and environmental problems, it is crucial to find clean, safe, and renewable energy sources. Hydrogen energy is a promising renewable energy.…”

Preparation of Cu(OH)2/Cu2S arrays for enhanced hydrogen evolution reaction

“…Hydrogen energy has become a hot new energy source due to its high energy density, abundant raw materials, and environmentally friendly products during consumption. [1][2][3][4] Among the many methods of hydrogen production, use of electrolytic water is the most environmentally friendly and promising one. [5][6][7][8][9] The preparation of high-efficiency catalysts is a key step to improve the reaction rate of hydrogen evolution and reduce energy consumption.…”

“…Therefore, a suitable concentration of sulfur source is crucial for producing Cu(OH) 2 /Cu 2 S nanorod array catalytic electrodes with exceptional performance in HER. 3 In this experiment, the control group was established by regulating the concentration of the sulfur source. A reduced concentration of the sulfur source may result in homogeneous development of metal sulfides and more effective use of their edge active sites.…”

“…Hydrogen energy has become a hot new energy source due to its high energy density, abundant raw materials, and environmentally friendly products during consumption 1–4 . Among the many methods of hydrogen production, use of electrolytic water is the most environmentally friendly and promising one 5–9 .…”