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Hydrogen Production - Science topic
Forum for high efficiency and high stability materials useful for Solar Hydrogen Production
Publications related to Hydrogen Production (10,000)
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Dear Colleagues,
Energy is the vital gear of global energy and life sustainability. The development of renewable energy derivatives, the key concept of biorefinery, is an essential feature of modern economies focusing on the decarbonization of production practices. As such, renewable energy is a highly prioritized research sphere with the prime fo...
The quest for sustainable CO2 neutral energy sources has led to a significant increase in offshore energy production. While this shift holds promise for reducing carbon emissions, it may also lead to an increase of chemical emissions, which may pose potential risks to marine ecosystems. Potential chemical emissions from offshore energy production a...
Furan groups play significant roles in the combustion of low-rank coal. We employed ReaxFF MD to investigate the pyrolysis and oxidation processes of furan (FR) and benzofuran (BFR) under various oxygen contents and temperatures. The results show that the initial reaction of FR groups pyrolysis is FR/BFR → R-unstable carbon chain + CO, with all oxy...
This research work investigates the techno-economic feasibility and optimal design of stand-alone hybrid energy systems (HESs) for electricity and hydrogen production in a remote Australian community. It evaluates three configurations—PV/BESS, PV/FC/EL/HT, and PV/BESS/FC/EL/HT—incorporating photovoltaic (PV) panels, battery energy storage systems (...
This study proposed and evaluated the new hydrogen production design of the Gas Turbine-Steam Methane Reforming (GT-SMR) hybrid process. The superheated byproduct gas from the GT system is utilized as a combustion agent for the boiler of the SMR system, minimizing the required heat energy input for hydrogen production. The overall energy consumptio...
The global push toward a hydrogen economy fuels hydrogen production from various sources. A crucial step in enriching hydrogen and reducing CO in syngas derived from carbon-based hydrogen production is the water-gas shift reaction (WGSR). Given the equilibrium-limited nature of WGSR, low temperatures are necessary to reduce carbon monoxide concentr...
A R T I C L E I N F O Keywords: Artificial neural network optimization Brayton cycle Exergy efficiency Multi-generation system Proton exchange membrane electrolyzer Wind power A B S T R A C T The increasing global residential energy demand causes carbon emissions and ecological impacts, necessitating cleaner, efficient solutions. This study present...
As the global shift toward a low-carbon economy accelerates, hydrogen is emerging as a crucial energy source. Among conventional methods for hydrogen production, steam methane reforming (SMR), commonly paired with pressure swing adsorption (PSA) for hydrogen purification, stands out due to its established infrastructure and technological maturity....
The Special Issue Outlines: This special collection covers the present and future trends of hydrogen production integrated systems concerning the multidisciplinary energy indices that would include mechanical engineering, electrical engineering, and chemical engineering.
Hydrogen is a promising alternative energy source that can help meet future global energy demands while replacing fossil fuels. It offers eco-friendliness, enhanced energy security, economic benefits, and a pathway for decarbonization. Microalgae, particularly those with improved growth rates, are being explored for bio-hydrogen extraction, as thei...
Green hydrogen is gaining a significant attention in the transition to sustainable energy and achieving net-zero emissions. Platinum-based catalysts are highly regarded in hydrogen production, particularly due to their efficiency in water electrolysis. Platinum nanoparticles (Pt NPs) is successively prepared by the microwave-assistant citrate metho...
The catalytic activities of high-spin small Fe(III) oxides have been investigated for efficient hydrogen production through ammonia decomposition, using the artificial force induced reaction method within the framework of density functional theory with the B3LYP hybrid exchange–correlation functional. Our results reveal that the adsorption free ene...
This review explores the potential of enhancing hydrogen production energy efficiency through plasma-mediated water-splitting methods. A variety of plasma types have been explored in the literature for this purpose, including dielectric barrier discharge, microwave, radiofrequency, and gliding arc, with a large range of efficiencies in water splitt...
Conventional hydrogen production processes, which often involve fossil raw materials, emit significant amounts of carbon dioxide into the atmosphere. This study critically evaluates the feasibility of using sugarcane biomass as an energy source to produce green hydrogen. In the 2023/2024 harvest, Brazil, the world's largest sugarcane producer, proc...
Laser technology has become a transformative technology in science, industry, and
environmental sustainability. The first ruby laser was produced in 1960, and as far as Einstein’s principle of stimulated emission is concerned, lasers have proliferated into indispensable devices in medicine, manufacturing, and applications to the environment. It emp...
A series of new (donor)₂‐donor‐π‐acceptor (D2‐D‐π‐A) and (acceptor)₂‐donor‐π‐acceptor (A2‐D‐π‐A) organic photosensitizers based on the framework of (Z)‐2‐cyano‐3‐(5‐(4‐(diphenylamino)phenyl)thiophen‐2‐yl)acrylic acid have been synthesized and characterized. By incorporating groups with different electron‐donating or withdrawing abilities, such as d...
Hydrogen purity plays a crucial role in the expanding hydrogen economy, particularly in applications such as fuel cells and industrial processes. This review investigates the relationship between hydrogen production methods and resulting purity levels, emphasizing the differences between reforming, electrolysis, and biomass-based techniques. Furthe...
The increasing energy demand for and fast depletion of fossil fuels have driven the need to explore renewable and clean energy sources. Hydrogen production via water electrocatalysis is considered a promising green fuel technology for addressing global energy and environmental challenges while supporting sustainable development. Molybdenum disulfid...
The growing interest in sustainable energy has driven significant innovation in
energy production, with water electrolysis standing out as a promising technology
for carbon-free hydrogen production from renewable sources. This study presents
a bibliometric analysis of recent and highly cited research on hydrogen electrolyzers
using the Web of Scien...
The development of efficient photocatalysts for renewable hydrogen production via water splitting is of paramount importance for sustainable energy generation. In this study, CoO/Co3O4 nanofibers were synthesized using an innovative water gas-assisted procedure and evaluated as photocatalysts for hydrogen generation from a methanol/water mixture un...
This research introduces a simple and effective method to enhance oxygen evolution reaction (OER) performance through surface reconstruction of metal substrates via hydration. A water treatment technique is employed to form a nanometer‐thick hydroxide layer on Ni foam, which significantly improved OER activity compared to pristine Ni. To further ex...
The use of hybrids, developed by grafting homogeneous catalysts onto supporting materials, has already demonstrated significant potential in various catalytic processes. These systems combine the advantages of homogeneous catalysts, such as high activity and selectivity, with those of solid supports, including enhanced recyclability. Catalytic hydr...
In this study, thermodynamic and environmental assessments of waste heat driven cogeneration systems are carried out. The cogeneration systems include basic and modified configurations of Organic Rankine cycle (ORC), Reverse osmosis (RO) unit and Proton exchange membrane (PEM) electrolyser. The ORCs are aimed at transforming waste heat into power f...
Direct seawater electrolysis is a promising technology for massive green hydrogen production but is limited by the lack of durable and efficient electrocatalysts toward the oxygen evolution reaction (OER). Herein, a high entropy phosphorus sulfide (HEPS) is prepared as a high‐performance OER catalyst for seawater splitting through a simple vacuum h...
Research and development in hydrogen production, storage and transformation, and carbon dioxide capture within the unique research facilities at the Laboratory for the demonstration of H2 and CO2 technologies. Job Responsibilities:-conduct, manage, and coordinate research,-prepare articles, reports and other forms of presenting results,-prepare pro...
Developing robust, inexpensive, and efficient electrocatalysts for hydrogen evolution via water splitting is crucial for the improvement of green hydrogen production technology. Herein, a standard three-electrode system is useful to assess the activity of single and mixed NiOx and CoOx electrocatalysts, assembled onto a glassy carbon (GC) electrode...
In the pursuit of sustainable energy solutions, the spotlight shines on the advancement of effective energy storage systems and green hydrogen production. In this work, UU 200 (UU: Uppsala University) metal–organic framework (MOF)/bismuth oxide (Bi4O8), termed the UU 200/Bi4O8 nanocomposite, has been synthesized and utilized as an electrode materia...
Developing high‐performance oxygen evolution reaction (OER) electrocatalysts that can operate stably at large current densities in seawater plays a crucial role in enabling large‐scale hydrogen production, however, it remains a significant challenge. Herein, sulfur‐doped NiFe layered double hydroxide nanosheet (S‐NiFe LDH) grown on a 3D porous nick...
In the last five years, the use of hydrogen as an energy carrier has received rising attention because it can be used in internal combustion and jet engines, and it can even generate electricity in fuel cells. The scope of this work was to critically review the methods of H2 production from renewable and non-renewable sources, with a focus on bio-H...
Green hydrogen is an effective energy countermeasure for global climate change and promoting the energy transition and COx-free hydrogen production from ammonia decomposition provides an economic benefit of hydrogen storage and transportation which garnering widespread attention. In this study, the catalyst consisting of highly dispersed Ru nanopar...
The continuous growth in world energy demands along with the urgent need for decarbonization are strong motivations for the development and usage of sustainable fuels. Hydrogen is highly anticipated to replace fossil fuels in energy production, as it is one of the cleanest energy sources with high energy density per weight. Among the hydrogen produ...
Cu0.98V0.02S and Cu0.96V0.02M0.02S (M ≡ Co, Mg, Mn, Ni) samples were created using the solid reaction method at low temperature. The search match program X’Pert HighScore Plus was used to identify the different phases in each sample. The phase proportions of the two phases identified, Cu1.8S and CuS, along with their structural parameters were dete...
In this study, a novel catalyst was developed by loading 5-10wt% Ni on food waste ash. The food waste ash worked as a support and promoter for the Ni catalyst. Thereafter, the catalyst was tested for enhanced tar reduction and higher H2 production during steam gasification of food waste. The performance of this catalyst was evaluated using four dif...
Carbonaceous-based metal-free catalysts are promising aspirants for effective electrocatalytic hydrogen generation. Herein, we synthesized mesoporous-activated carbon nanosheets (ELC) from biomass eucalyptus leaves through KOH activation. The microstructure, structural, and textural characteristics of the prepared materials were characterized by FE...
The integration of hydrazine electrooxidation (HzOR) and hydrogen evolution reaction (HER) presents an efficient pathway for high‐purity hydrogen production. However, developing bifunctional catalysts remains challenging for the demands of multiple active‐centers and tailored electronic properties. Here, a unique Janus nano‐catalysts of MoCx/CoP em...
The bismuth terephthalate metal–organic framework (Bi(TPA).MOF) was synthesized as a methanolysis catalyst using a solvothermal method, by reacting terephthalic acid (TPA) with bismuth nitrate pentahydrate (Bi(NO3)3·5H2O) in dimethylformamide (DMF) at 383.15 K. The structure, morphology, and composition of the resulting MOF were characterized using...
Photocatalytic hydrogen evolution (PHE) is sustainable and environmentally friendly. Titanium dioxide (TiO2) is commonly chosen as a photocatalyst of PHE due to its non-toxicity, robust stability, and superior photocatalytic activity. However, the efficacy of TiO2 is restricted by rapid electron–hole pair recombination, limited electron mobility, a...
Proton exchange membrane water electrolyzer (PEMWE) coupled with renewable energy to produce hydrogen is an important part of clean energy acquisition in the future. However, the slow kinetics of the oxygen evolution reaction (OER) hinder the large‐scale application of PEM water electrolysis technology. To deal with the problems existing in the PEM...
In this study, in order to achieve CO2 capture under high‐temperature conditions and obtain hydrogen from biomass, a dual‐effect catalyst Ni(x)‐Na2ZrO3, possessing both catalytic and high‐temperature CO2 adsorption capabilities, was prepared and applied in the biomass steam reforming reaction. The investigation focused on the impact of gasification...
Expanding the spectral response of photocatalysts to facilitate overall water splitting (OWS) represents an effective approach for improving solar spectrum utilization efficiency. However, the majority of single‐phase photocatalysts designed for OWS primarily respond to the ultraviolet region, which accounts for a small proportion of sunlight. Here...
Anion exchange membrane seawater electrolysis is vital for future large-scale green hydrogen production, however enduring a huge challenge that lacks high-stable oxygen evolution reaction electrocatalysts. Herein, we report a robust OER electrocatalyst for AEMSE by integrating MXene (Ti3C2) with NiFe sulfides ((Ni,Fe)S2@Ti3C2). The strong interacti...
Hydrocarbon fuels are widely recognized as significant contributors to climate change and the rising levels of CO2 in the atmosphere. As a result, it is crucial to reduce the net carbon intensity of energy derived from these fuels. This study explores the feasibility of using dimethyl ether (DME), produced through the hydrogenation of CO2, as a low...
TiO2 is widely utilized as an excellent photocatalyst in energy production. However, its rapid electron and hole recombination confers poor photocatalytic activity. Cocatalysts are essential for increasing photocatalytic efficacy by introducing improved electron transmission and enlarging the active site. Herein, the photocatalytic degradation of a...
The values of sustainable hydrogen production with nano-ZrO2 + H2Oads., nano-ZrO2 + H2Oliq. nano-TiO2 + H2Oads., and nano-TiO2 + H2Oliq. systems were 7.0 × 1017 at 80 min, 140.0 × 1017 at 60 min, 2.21 × 1016 at 8 h, 80.0 × 1016 at 6 h molecules/g. The values of W(H2) in these systems were 4.44 × 1013, 2.78 × 1014, 1.38 × 1013 and 4.2 × 1013 molecul...
In recent years, there has been a significant emphasis on transitioning to sustainable energy technologies. Among these, electric cooking (e-cooking) has emerged as a promising alternative to traditional cooking methods. This study employed a systematic review and bibliometric analysis to investigate emerging trends and advancements in solar PV-bas...
The global need for energy has risen sharply recently. A global shift to clean energy is urgently needed to avoid catastrophic climate impacts. Hydrogen (H2) has emerged as a potential alternative energy source with near-net-zero emissions. In the African continent, for sustainable access to clean energy and the transition away from fossil fuels, t...
Due to unique metal‐support interactions, loaded structures have been widely used in the structural design of hydrogen‐extraction reaction (HER) electrocatalysts. However, the development of catalysts that are both active and stable remains a great challenge. Herein, we successfully anchored Pt nanoparticles on ultrathin nanobelts to construct a cr...
Anion exchange membrane water electrolysis (AEMWE) employing Ir/Ru‐free anodes emerges as a bright prospect for green hydrogen society. Here, a Ni0.8Fe0.2Mn0.1Se2 nanosheet electrocatalyst is reported, in situ grown on stainless‐steel paper, as an efficient and durable self‐supporting AEMWE anode for oxygen evolution reaction (OER). The interstitia...
A novel all-in-one catalytic electrode containing a Ni3S2@NiS heterostructure (Ni3S2@NiS/Ni-Net) was in situ synthesized on an industrial nickel net (Ni-Net) using a one-step solvothermal method, in which ethanol was the solvent and thioacetamide was the sulfur source, respectively. The effects of the addition amount of the sulfur source on the com...
Harnessing solar energy offers a sustainable alternative for powering electrolysis for green hydrogen production as well as wastewater treatment. The high costs and logistical challenges of electrolysis have resulted in limited widespread investigation and implementation of electrochemical technologies on an industrial scale. To overcome these chal...
Environmental pollution is becoming one of the main issues facing human civilisation as a result of the world’s
growing industrialisation. Using limitless solar energy, photocatalysis may be used to address environmental
issues. Whilst, the incorporation of ultrasonic cavitation in various processes such as the Fenton-like process,
electrochemic...
Titanium dioxide modified with tin and/or carbon was synthesized by sol-gel method and characterized by X-ray powder diffraction, transmission electron microscopy, scanning electron microscopy, energy-dispersive X-ray spectroscopy, Brunauer–Emmett–Teller and Barret–Joiner–Halenda methods, Fourier transform infrared and UV-vis diffuse reflection spe...
The global energy landscape is experiencing a transformative shift, with an increasing emphasis on sustainable and clean energy sources. Hydrogen remains a promising candidate for decarbonization, energy storage, and as an alternative fuel. This study explores the landscape of hydrogen pricing and demand dynamics by evaluating three collaboration s...
Organics electrooxidation coupled hydrogen production has attracted increasing attention due to the low operation voltage. Nevertheless, the spontaneous production of hydrogen coupled with organics valorization remains challenging. Herein, we develop ultrathin Au/Pt twin nanowire (NW) catalysts for both electrochemical glucose oxidation and hydroge...
Hydrogen is crucial in increasing the adoption of intermittent solar technologies including concentrated solar plants (CSP) and Photovoltaic (PV) panels due to its versatility and potential for long-term storage. This study conducts a techno-economic analysis of the green hydrogen supply chain powered by solar energy in Dhahran, Saudi Arabia. It co...