Photoactivity of g‐C<sub>3</sub>N<sub>4</sub>/S‐Doped Porous Carbon Composite: Synergistic Effect of Composite Formation

Seredych, Mykola; Łoś, Szymon; Giannakoudakis, Dimitrios A.; Rodríguez‐Castellón, Enrique; Bandosz, Teresa J.

doi:10.1002/cssc.201501658

Cited by 63 publications

(23 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The studies on S‐, N‐, and O‐containing nanoporous carbons placed the bandgap between 1.4 and 2.9 eV 57, 58, 59. The positions of CB and VB were indicated depending on the microstructure and chemistry of the carbon materials ( Figure 5 ).…”

Section: Origin Of Photoactivity Of Nanoporous Carbonsmentioning

confidence: 99%

“…Seredych and Bandosz explored a direct photocurrent generation in S‐doped nanoporous carbons 58, 103. That carbon was chosen based on its earlier detected photoactivity 104.…”

Section: Origin Of Photoactivity Of Nanoporous Carbonsmentioning

confidence: 99%

Section: Origin Of Photoactivity Of Nanoporous Carbonsmentioning

confidence: 99%

See 2 more Smart Citations

Origin and Perspectives of the Photochemical Activity of Nanoporous Carbons

Bandosz

Ania

2018

Advanced Science

Self Cite

View full text Add to dashboard Cite

Even though, owing to the complexity of nanoporous carbons' structure and chemistry, the origin of their photoactivity is not yet fully understood, the recent works addressed here clearly show the ability of these materials to absorb light and convert the photogenerated charge carriers into chemical reactions. In many aspects, nanoporous carbons are similar to graphene; their pores are built of distorted graphene layers and defects that arise from their amorphicity and reactivity. As in graphene, the photoactivity of nanoporous carbons is linked to their semiconducting, optical, and electronic properties, defined by the composition and structural defects in the distorted graphene layers that facilitate the exciton splitting and charge separation, minimizing surface recombination. The tight confinement in the nanopores is critical to avoid surface charge recombination and to obtain high photochemical quantum yields. The results obtained so far, although the field is still in its infancy, leave no doubts on the possibilities of applying photochemistry in the confined space of carbon pores in various strategic disciplines such as degradation of pollutants, solar water splitting, or CO2 mitigation. Perhaps the future of photovoltaics and smart‐self‐cleaning or photocorrosion coatings is in exploring the use of nanoporous carbons.

show abstract

Section: Origin Of Photoactivity Of Nanoporous Carbonsmentioning

confidence: 99%

“…Seredych and Bandosz explored a direct photocurrent generation in S‐doped nanoporous carbons 58, 103. That carbon was chosen based on its earlier detected photoactivity 104.…”

Section: Origin Of Photoactivity Of Nanoporous Carbonsmentioning

confidence: 99%

See 1 more Smart Citation

Origin and Perspectives of the Photochemical Activity of Nanoporous Carbons

Bandosz

Ania

2018

Advanced Science

Self Cite

View full text Add to dashboard Cite

show abstract

“…[48] Basically,aslurry of the sample and N-methyl-2-pyrrolidone was coated on a0 .5 cm 0.45 cm thin-film gold interdigitated electrode. [48] Basically,aslurry of the sample and N-methyl-2-pyrrolidone was coated on a0 .5 cm 0.45 cm thin-film gold interdigitated electrode.…”

Section: Photoelectrochemical Measurementsmentioning

confidence: 99%

“…The experimental setup used is illustrated in the literature. [48] Basically,aslurry of the sample and N-methyl-2-pyrrolidone was coated on a0 .5 cm 0.45 cm thin-film gold interdigitated electrode. The samples were dried at 120 8Cf or 24 ht og ive af ilm thickness of approximately 100 mm.…”

Section: Photoelectrochemical Measurementsmentioning

confidence: 99%

Role of Heteroatoms in S,N‐Codoped Nanoporous Carbon Materials in CO₂ (Photo)electrochemical Reduction

Bandosz

2018

ChemSusChem

Self Cite

View full text Add to dashboard Cite

Thiourea-modified wood-based activated carbon materials were evaluated as catalysts for the CO electrochemical reduction reaction (CO ERR). The materials obtained at 950 °C showed long-term stability. The results indicated that thiophenic sulfur provides the catalytic activity for CO formation. However, it was not as active for CH formation as was pyridinic N. Tafel plots suggested that the nanoporous structure enhanced the kinetics for CO reduction. The electric conductivity limited the activity for CO ERR in the materials modified at 600, 800, and 900 °C. The effect of visible light on CO ERR was also investigated in this study. Upon irradiation, photocurrent was generated, and the current density increased during the CO reduction process. Combined with a band-gap alignment, the results indicate that thiophenic S in the carbon matrix contributed to the sample's photoactivity in visible light. These species enhance the overall reduction process, promoting both the hydrogen evolution reaction and CO reduction to CO.

show abstract

PtPdNi Catalysts Supported on Porous Carbon for Ethanol Electro‐oxidation

et al. 2019

View full text Add to dashboard Cite

In this work, we prepared four electrocatalysts based on trimetallic PtPdNi nanoparticles on different carbon supports, i. e., i) two activated carbons produced from biomass, ii) micromesoporous carbon synthesized by the nanocasting method, and iii) commercial carbon black. The electrocatalytic activity of the prepared materials was tested in the electro-oxidation of ethanol in alkaline medium. Well-distributed nanoparticles with sizes in the range of 3.5-5.2 nm were obtained through galvanic replacement. The bulk Pt, Pd and Ni contents were about 65, 25 and 15 at. %, measured by EDX and ICP-AES. By XPS the surface Pt : Pd atomic ratios were in the range of 1.82-2.2. Electrochemical experiments showed that the trimetallic nanoparticles deposited over micro-mesoporous carbon material exhibit the highest electrochemical activity towards ethanol electro-oxidation in alkaline medium. Results showed that both synthetic carbon and biomass-derived carbon are suitable materials to support electrocatalysts in low-temperature fuel cells.

show abstract

Photoactivity of g‐C₃N₄/S‐Doped Porous Carbon Composite: Synergistic Effect of Composite Formation

Cited by 63 publications

References 43 publications

Origin and Perspectives of the Photochemical Activity of Nanoporous Carbons

Origin and Perspectives of the Photochemical Activity of Nanoporous Carbons

Role of Heteroatoms in S,N‐Codoped Nanoporous Carbon Materials in CO₂ (Photo)electrochemical Reduction

PtPdNi Catalysts Supported on Porous Carbon for Ethanol Electro‐oxidation

Contact Info

Product

Resources

About

Photoactivity of g‐C3N4/S‐Doped Porous Carbon Composite: Synergistic Effect of Composite Formation

Cited by 63 publications

References 43 publications

Origin and Perspectives of the Photochemical Activity of Nanoporous Carbons

Origin and Perspectives of the Photochemical Activity of Nanoporous Carbons

Role of Heteroatoms in S,N‐Codoped Nanoporous Carbon Materials in CO2 (Photo)electrochemical Reduction

PtPdNi Catalysts Supported on Porous Carbon for Ethanol Electro‐oxidation

Contact Info

Product

Resources

About

Photoactivity of g‐C₃N₄/S‐Doped Porous Carbon Composite: Synergistic Effect of Composite Formation

Role of Heteroatoms in S,N‐Codoped Nanoporous Carbon Materials in CO₂ (Photo)electrochemical Reduction