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This Special Issue is related to studies of the hydrogen production from formic acid decomposition. It is based on five research papers and two reviews. The reviews discuss the liquid phase formic acid decomposition over bimetallic (PdAg), molecular (Ru, Ir, Fe, Co), and heterogenized molecular catalysts. The gas-phase reaction is studied over highly dispersed Pd, Pt, Au, Cu, and Ni supported catalysts. It is shown that the nature of the catalyst’s support plays an important role for the reaction. Thus, N-doping of the carbon support provides a significant promotional effect. One of the reasons for the high activity of the N-doped catalysts is the formation of single-atom active sites stabilized by pyridinic N species present in the support. It is demonstrated that carbon materials can be N-doped in different ways. It can be performed either directly from N-containing compounds during the carbon synthesis or by a post-synthetic deposition of N-containing compounds on the carbon support with known properties. The Issue could be useful for specialists in catalysis and nanomaterials as well as for graduate students studying chemistry and chemical engineering. The reported results can be applied for development of catalysts for the hydrogen production from different liquid organic hydrogen carriers.

Technology: general issues --- formic acid decomposition --- hydrogen production --- CuO-CeO2/γ-Al2O3 --- multifuel processor --- copper catalyst --- oxygenates --- fuel cell --- Pd/C --- melamine --- g-C3N4 --- bipyridine --- phenanthroline --- N-doped carbon --- hydrogen --- formic acid --- platinum --- nitrogen doped --- carbon nanotubes --- carbon nanofibers --- heterogeneous catalysts --- bimetallic nanoparticles --- PdAg --- AgPd --- alloy --- nickel catalyst --- porous carbon support --- nitrogen doping --- hydrogen energetics --- hydrogen carrier --- formic acid dehydrogenation --- supported gold catalysts --- formic --- formate --- hybrid --- functionalization --- co-catalyst --- additive --- amine --- molecular catalyst --- nanocatalyst --- nano co-catalyst

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This reprint focuses on new trends in photo-electrocatalysis, specifically addressed to the remediation of wastewater and energy production. The remediation of wastewater, up to a level that is acceptable for discharge into receiving waterbodies, involves an ever-growing demand of energy, so effective and low-energy treatment processes are highly desirable. Among the other treatments, photo- and photo-electrochemical treatment processes may be considered as advanced oxidation processes (AOP), which are based on the generation of OH radicals, strong oxidizing agents able to indiscriminately degrade even the most persistent organic compounds. Photocatalysis and photo-electrocatalysis can be considered as effective methods for organic degradation, especially when the semiconductor is active in the range of visible light. Several results are presented on new morphologies and structures, which allow more photoactive, visibly responsive, and stable materials, as well as studies on combined processes in which photo- or photo-electrochemistry contribute to an increase in the sustainability of the whole process, lowering costs and achieving the most valuable final products. In view of the circular economy concept, microbial fuel cell systems are also considered as possible way to recover energy from organic pollutants contained in wastewater.

Research & information: general --- Biology, life sciences --- composite --- polymethylmethacrylate --- photocatalytic oxidation --- titanium dioxide --- tetracycline --- ethanol --- photocatalysis --- silver(II) oxide --- mechanical mixture --- in situ deposition --- hydrogen evolution --- Anodic oxidation --- diamond electrodes --- UV irradiation --- ultrasounds --- amoxicillin --- ampicillin --- Composite catalysts --- synergy effect --- solar energy --- wastewater remediation --- photoelectrocatalysis --- TiO2 nanostructures --- Au nanoparticles --- water splitting --- bisphenol A oxidation --- ZnFe2O4 --- degree of inversion --- cation distribution --- photoelectrochemical activity --- porous nickel --- selective corrosion --- hydrogen evolution reaction --- metal sulfides --- H2 production --- photocatalyst --- facet effect --- light trapping --- crystal size --- non-precious metal catalysts --- Cu–B alloy --- microbial fuel cell --- cathode --- environmental engineering --- oxygen electrode --- renewable energy sources --- graphitic carbon nitride --- H2 generation --- Ni–Co catalyst --- electricity production --- advanced oxidation processes --- azo dye --- sustainable resources --- niobium --- water reuse --- water treatment --- AOPs --- zinc oxide --- nanoclusters --- UVA --- visible light --- photocatalytic reduction --- CO2 --- TiO2 photocatalysts --- surface modification --- solar fuel --- magnetron sputtering --- titanium dioxide (TiO2) film --- photocatalytic activity --- metal and non-metal doping --- optical properties --- n/a --- Cu-B alloy --- Ni-Co catalyst

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

This reprint focuses on new trends in photo-electrocatalysis, specifically addressed to the remediation of wastewater and energy production. The remediation of wastewater, up to a level that is acceptable for discharge into receiving waterbodies, involves an ever-growing demand of energy, so effective and low-energy treatment processes are highly desirable. Among the other treatments, photo- and photo-electrochemical treatment processes may be considered as advanced oxidation processes (AOP), which are based on the generation of OH radicals, strong oxidizing agents able to indiscriminately degrade even the most persistent organic compounds. Photocatalysis and photo-electrocatalysis can be considered as effective methods for organic degradation, especially when the semiconductor is active in the range of visible light. Several results are presented on new morphologies and structures, which allow more photoactive, visibly responsive, and stable materials, as well as studies on combined processes in which photo- or photo-electrochemistry contribute to an increase in the sustainability of the whole process, lowering costs and achieving the most valuable final products. In view of the circular economy concept, microbial fuel cell systems are also considered as possible way to recover energy from organic pollutants contained in wastewater.

Research & information: general --- Biology, life sciences --- composite --- polymethylmethacrylate --- photocatalytic oxidation --- titanium dioxide --- tetracycline --- ethanol --- photocatalysis --- silver(II) oxide --- mechanical mixture --- in situ deposition --- hydrogen evolution --- Anodic oxidation --- diamond electrodes --- UV irradiation --- ultrasounds --- amoxicillin --- ampicillin --- Composite catalysts --- synergy effect --- solar energy --- wastewater remediation --- photoelectrocatalysis --- TiO2 nanostructures --- Au nanoparticles --- water splitting --- bisphenol A oxidation --- ZnFe2O4 --- degree of inversion --- cation distribution --- photoelectrochemical activity --- porous nickel --- selective corrosion --- hydrogen evolution reaction --- metal sulfides --- H2 production --- photocatalyst --- facet effect --- light trapping --- crystal size --- non-precious metal catalysts --- Cu-B alloy --- microbial fuel cell --- cathode --- environmental engineering --- oxygen electrode --- renewable energy sources --- graphitic carbon nitride --- H2 generation --- Ni-Co catalyst --- electricity production --- advanced oxidation processes --- azo dye --- sustainable resources --- niobium --- water reuse --- water treatment --- AOPs --- zinc oxide --- nanoclusters --- UVA --- visible light --- photocatalytic reduction --- CO2 --- TiO2 photocatalysts --- surface modification --- solar fuel --- magnetron sputtering --- titanium dioxide (TiO2) film --- photocatalytic activity --- metal and non-metal doping --- optical properties --- composite --- polymethylmethacrylate --- photocatalytic oxidation --- titanium dioxide --- tetracycline --- ethanol --- photocatalysis --- silver(II) oxide --- mechanical mixture --- in situ deposition --- hydrogen evolution --- Anodic oxidation --- diamond electrodes --- UV irradiation --- ultrasounds --- amoxicillin --- ampicillin --- Composite catalysts --- synergy effect --- solar energy --- wastewater remediation --- photoelectrocatalysis --- TiO2 nanostructures --- Au nanoparticles --- water splitting --- bisphenol A oxidation --- ZnFe2O4 --- degree of inversion --- cation distribution --- photoelectrochemical activity --- porous nickel --- selective corrosion --- hydrogen evolution reaction --- metal sulfides --- H2 production --- photocatalyst --- facet effect --- light trapping --- crystal size --- non-precious metal catalysts --- Cu-B alloy --- microbial fuel cell --- cathode --- environmental engineering --- oxygen electrode --- renewable energy sources --- graphitic carbon nitride --- H2 generation --- Ni-Co catalyst --- electricity production --- advanced oxidation processes --- azo dye --- sustainable resources --- niobium --- water reuse --- water treatment --- AOPs --- zinc oxide --- nanoclusters --- UVA --- visible light --- photocatalytic reduction --- CO2 --- TiO2 photocatalysts --- surface modification --- solar fuel --- magnetron sputtering --- titanium dioxide (TiO2) film --- photocatalytic activity --- metal and non-metal doping --- optical properties