Promoting body carriers migration of CdS nanocatalyst by N-doping for improved hydrogen production under simulated sunlight irradiation

Li, Wei; Wang, Fei; Liu, Xiaoyun; Dang, Yanyan; Li, Jiayuan; Ma, Teng-hao; Wang, Chuanyi

doi:10.1016/j.apcatb.2022.121470

Cited by 75 publications

(16 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The first-principles density functional theory (DFT) calculations were performed within the generalized gradient approximation (GGA) based on via Vienna abinitio simulation package (VASP) 61 – 63 . We constructed FeN/Fe 3 N interface structure, FeN and Fe 3 N surface model with periodicity in the x and y directions and the depth of the vacuum layer is greater than 20 Å in order to prevent self-interactions.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

The built-in electric field across FeN/Fe3N interface for efficient electrochemical reduction of CO2 to CO

et al. 2023

View full text Add to dashboard Cite

Nanostructured metal-nitrides have attracted tremendous interest as a new generation of catalysts for electroreduction of CO2, but these structures have limited activity and stability in the reduction condition. Herein, we report a method of fabricating FeN/Fe3N nanoparticles with FeN/Fe3N interface exposed on the NP surface for efficient electrochemical CO2 reduction reaction (CO2RR). The FeN/Fe3N interface is populated with Fe−N4 and Fe−N2 coordination sites respectively that show the desired catalysis synergy to enhance the reduction of CO2 to CO. The CO Faraday efficiency reaches 98% at −0.4 V vs. reversible hydrogen electrode, and the FE stays stable from −0.4 to −0.9 V during the 100 h electrolysis time period. This FeN/Fe3N synergy arises from electron transfer from Fe3N to FeN and the preferred CO2 adsorption and reduction to *COOH on FeN. Our study demonstrates a reliable interface control strategy to improve catalytic efficiency of the Fe–N structure for CO2RR.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Theoretical Calculationsmentioning

confidence: 99%

The built-in electric field across FeN/Fe3N interface for efficient electrochemical reduction of CO2 to CO

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Compared with metal doping, non-metallic atoms with high electronegativity can form strong coordination interaction with metal atoms in semiconductor, effectively modulating the band structure and improving the migration behaviour of carriers. Inspired by this, Li et al [93] doped N heteroatoms into the lattice of hexagonal CdS NPs to synthesize the nitrogen-doped CdS nanocatalyst (N-CdS) (figure 9). Due to the synergetic nonmetallic (N) heteroatom-semiconductor (CdS) coordination interaction, the energy barriers of water cracking and hydrogen generation on N-CdS nanocatalyst were dramatically decreased, and the body carriers' migration was significantly accelerated, thereby the highly improved HER activity can be achieved for high-efficient utilization of photo-carriers.…”

Section: Advances In Science and Technology To Meet Challengesmentioning

confidence: 99%

2023 roadmap on photocatalytic water splitting

et al. 2023

Self Cite

View full text Add to dashboard Cite

As a consequence of the issues resulting from global climate change many nations are starting to transition to being low or net zero carbon economies. To achieve this objective practical alternative fuels are urgently required and hydrogen gas is deemed one of the most desirable substitute fuels to traditional hydrocarbons. A significant challenge, however, is obtaining hydrogen from sources with low or zero carbon footprint i.e. so called “green” hydrogen. Consequently, there are a number of strands of research into processes that are practical techniques for the production of this “green” hydrogen. Over the past five decades there has been a significant body of research into photocatalytic/photoelectrocatalytic processes for hydrogen production through water splitting or water reduction. There have, however been significant issues faced in terms of the practical capability of this promising technology to produce hydrogen at scale. This road map article explores a range of issues related to both photocatalytic and photoelectrocatalytic hydrogen generation ranging from basic processes, materials science through to reactor engineering and applications for biomass reforming.

show abstract

“…This was because of the restrained recombination behavior of the photoexcited carriers. 50 Therefore, the promoted separation and prolonged retention time of the photoexcited carriers were the internal driving force for improving the photocatalytic activity of the 3SCN composites. In addition, all relevant analyses of transient photocurrent response and EIS directly certified the remarkable photo-electrochemical abilities over the 3SCN composites.…”

Section: Optical and Electronic Propertiesmentioning

confidence: 99%

Synthesis and application of type-II heterojunctions based on CdS and g-C₃N₅ for efficient photocatalytic degradation of antibiotics

Jian

Wang

Huang³

et al. 2023

New J. Chem.

View full text Add to dashboard Cite

show abstract

Promoting body carriers migration of CdS nanocatalyst by N-doping for improved hydrogen production under simulated sunlight irradiation

Cited by 75 publications

References 66 publications

The built-in electric field across FeN/Fe3N interface for efficient electrochemical reduction of CO2 to CO

The built-in electric field across FeN/Fe3N interface for efficient electrochemical reduction of CO2 to CO

2023 roadmap on photocatalytic water splitting

Synthesis and application of type-II heterojunctions based on CdS and g-C₃N₅ for efficient photocatalytic degradation of antibiotics

Contact Info

Product

Resources

About

Promoting body carriers migration of CdS nanocatalyst by N-doping for improved hydrogen production under simulated sunlight irradiation

Cited by 75 publications

References 66 publications

The built-in electric field across FeN/Fe3N interface for efficient electrochemical reduction of CO2 to CO

The built-in electric field across FeN/Fe3N interface for efficient electrochemical reduction of CO2 to CO

2023 roadmap on photocatalytic water splitting

Synthesis and application of type-II heterojunctions based on CdS and g-C3N5 for efficient photocatalytic degradation of antibiotics

Contact Info

Product

Resources

About

Synthesis and application of type-II heterojunctions based on CdS and g-C₃N₅ for efficient photocatalytic degradation of antibiotics