Electro-oxidation of tri(ammonium) phosphate: New hydrogen source compatible with Ni-based electro-catalysts

Barakat, Nasser A.M.; Ahmed, Enas; Farghali, Ahmed A.; Nassar, Mamdouh M.; Tolba, Gehan M.K.; Zaki, A.H.

doi:10.1016/j.ijhydene.2022.05.252

Cited by 4 publications

(3 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Carbon supports for functional materials are usually used to exploit their adsorption capacity. In other words, for the heterogeneous catalytic reactions using carbon-based catalysts, the process is considered a combination between adsorption and the primary reaction [ 57 ]. Adsorption capacity mainly depends on functional groups located on the surface of the carbonaceous materials.…”

Section: Resultsmentioning

confidence: 99%

Extraction of Novel Effective Nanocomposite Photocatalyst from Corn Stalk for Water Photo Splitting under Visible Light Radiation

et al. 2022

Self Cite

View full text Add to dashboard Cite

Novel (Ca, Mg)CO3&SiO2 NPs-decorated multilayer graphene sheets could be successfully prepared from corn stalk pith using a simple alkaline hydrothermal treatment process followed by calcination in an inert atmosphere. The produced nanocomposite was characterized by SEM, EDX, TEM, FTIR, and XRD analytical techniques, which confirm the formation of multilayer graphene sheets decorated by inorganic nanoparticles. The nanocomposite shows efficient activity as a photocatalyst for water-splitting reactions under visible light. The influence of preparation parameter variations, including the alkaline solution concentration, hydrothermal temperature, reaction time, and calcination temperature, on the hydrogen evolution rate was investigated by preparing many samples at different conditions. The experimental work indicated that treatment of the corn stalk pith hydrothermally by 1.0 M KOH solution at 170 °C for 3 h and calcinating the obtained solid at 600 °C results in the maximum hydrogen production rate. A value of 43.35 mmol H2/gcat.min has been obtained associated with the energy-to-hydrogen conversion efficiency of 9%. Overall, this study opens a new avenue for extracting valuable nanocatalysts from biomass wastes to be exploited in hot applications such as hydrogen generation from water photo-splitting under visible light radiation.

show abstract

Section: Resultsmentioning

confidence: 99%

Extraction of Novel Effective Nanocomposite Photocatalyst from Corn Stalk for Water Photo Splitting under Visible Light Radiation

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…Artificial photosynthesis (AP), which can convert solar energy into chemically stored energy, furnishes one of the fascinating strategies for providing renewable technology. , The design of an AP system via water splitting using sunlight includes a proton reduction half-reaction to hydrogen and a water oxidation half-reaction to oxygen. The currently stated nonprecious photocatalysts to establish this green hydrogen technology suffer from the limitations of fast recombination rate of the photogenerated charge carriers and inadequate number of reactive sites . The conversion of protons to hydrogen in nature is a chief biological reaction in the presence of iron-contented hydrogenase enzymes .…”

Section: Introductionmentioning

confidence: 99%

“…The currently stated nonprecious photocatalysts to establish this green hydrogen technology suffer from the limitations of fast recombination rate of the photogenerated charge carriers and inadequate number of reactive sites. 3 The conversion of protons to hydrogen in nature is a chief biological reaction in the presence of iron-contented hydrogenase enzymes. 4 Researchers have made many efforts to mimic the functional models of these enzymes, mainly from abundant transition metals such as Ni, Co, Mo, and W or their compounds; some of them have reached very high turnover numbers.…”

Section: Introductionmentioning

confidence: 99%

Development of Cobalt Oxide-Decorated Reduced Graphene Oxide-Supported Nickel Alloy Coating for Efficient Photocatalytic Hydrogen Generation

Meera,

Anil,

Bhagya

et al. 2023

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

Being a narrow band gap semiconductor, the photocatalytic activity of bare Ni 2 P is highly limited. However, a proper band gap tuning of Ni 2 P through effective composite formation furnishes a fruitful strategy for developing active photocatalytic materials. In this regard, the present work reports the application of an efficient photocatalytic ternary composite in the form of a coating formed from CoO/rGO and Ni 2 P. The simultaneous reduction of GO to rGO disperses crystalline CoO nanoparticles in it. The CoO-embedded rGO nanosheet can act as an efficient conducting material that helps to mediate the redox reactions in CoO and Ni 2 P. CoO/rGO enriches the catalytically active sites in the Ni 2 P surface with an improvement in the surface topography. Moreover, the possibilities of interactions such as hydrogen bonding among the oxygen functional groups in CoO/rGO, with phosphorus in Ni 2 P, lead to an intimate contact among them for the fast electronic movement for proton reduction. Consequently, the CoO/rGO-Ni 2 P composite coating displays a benchmark performance for solar-driven hydrogen generation and produces 4.98 mmol/g hydrogen for 1 h irradiation after a successful compositional tuning. The long-lasting activity and excellent stability of the composite coating, even after 15 cycles, are attributed to the additional role of Ni 2 P as a catalyst support bed for CoO/rGO which can impart stability to the entire catalyst system.

show abstract

XPS analysis, voltammetric, and impedance characteristics of novel heterogeneous biphosphates based on Cu/Ni for tri(ammonium) phosphate oxidation: A new direction for material processing in fuel technology

Abd El-Lateef,

Khalaf,

Mohamed

2024

Fuel

View full text Add to dashboard Cite

Electro-oxidation of tri(ammonium) phosphate: New hydrogen source compatible with Ni-based electro-catalysts

Cited by 4 publications

References 47 publications

Extraction of Novel Effective Nanocomposite Photocatalyst from Corn Stalk for Water Photo Splitting under Visible Light Radiation

Extraction of Novel Effective Nanocomposite Photocatalyst from Corn Stalk for Water Photo Splitting under Visible Light Radiation

Development of Cobalt Oxide-Decorated Reduced Graphene Oxide-Supported Nickel Alloy Coating for Efficient Photocatalytic Hydrogen Generation

XPS analysis, voltammetric, and impedance characteristics of novel heterogeneous biphosphates based on Cu/Ni for tri(ammonium) phosphate oxidation: A new direction for material processing in fuel technology

Contact Info

Product

Resources

About