Effective oxygen reduction reaction and suppression of CO poisoning on Pt3Ni1/N-rGO electrocatalyst

Lee, Junhee; Son, Namgyu; Park, Byung Hyun; Kim, Sujeong; Bae, Dasol; Kim, Minkyu; Joo, Sang Woo; Kang, Misook

doi:10.1016/j.apsusc.2022.154048

Cited by 10 publications

(2 citation statements)

References 68 publications

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“…This is in agreement with the HRTEM analysis. 39 The EDS mapping (Fig. S3 and S4 †) shows the even distribution of Ni, Pt, O, N and C elements throughout the catalysts.…”

Section: Resultsmentioning

confidence: 96%

Achieving superior methanol oxidation electrocatalytic performance by surface reconstruction of PtNi nanoalloys during acid etching process

et al. 2023

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“…This is in agreement with the HRTEM analysis. 39 The EDS mapping (Fig. S3 and S4 †) shows the even distribution of Ni, Pt, O, N and C elements throughout the catalysts.…”

Section: Resultsmentioning

confidence: 96%

Achieving superior methanol oxidation electrocatalytic performance by surface reconstruction of PtNi nanoalloys during acid etching process

et al. 2023

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“…proposed that the ionic contributions are well quantified by

Δ

W 2 , which has also been confirmed for heterojunction catalytic systems. [ 45,46 ] More specifically, a higher (lower)

Δ

W 2 triggers stronger ionic contributions, thereby forming a higher (lower) stability of O* on the surface. Our simulation predicted that

Δ

W 2 of the thin‐layer CuS/rGO was lower than that of the thick‐layer CuS/rGO (22.75 vs 28.09).…”

Section: Resultsmentioning

confidence: 99%

Solar Driven 15.7% Hydrogen Conversion by Harmony of Light Harvesting, Electron Transporting Bridge, and S‐Defection in a Self‐Assembled Microscale CuS/rGO/CP Photoanode

Kim

Seo

Park

et al. 2023

Energy & Environ Materials

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CuS is an encouraging photoelectrode candidate that meets the essential requirements for efficient solar‐to‐hydrogen production, but it has not been thoroughly studied. A CuS light absorber layer is grown by the self‐assembly of copper and sulfur precursors on a carbon paper (CP) electrode. Simultaneously, rGO is introduced as a buffer layer to control the optical and electrical properties of the absorber. The well‐ordered microstructural arrangement suppresses the recombination loss of electrons and holes owing to enhanced charge‐carrier generation, separation, and transport. The potential reaching 10 mA cm−2 in 1.0 m KOH solution is significantly lowered to 0.87 V, and the photocurrent density at 1.23 V is 94.7 mA cm−2. The computational result reveals that the potential‐determining step is sensitive to O* stability; the lower stability of O* in the thin layer of CuS/rGO decreases the free‐energy gap between the initial and final states of the potential‐determining step, resulting in a lowering of the onset potential. The faradaic efficiency for the photoelectrochemical oxygen evolution reaction in the optimized 2CuS/1rGO/CP photoanode is 98.60%, and the applied bias photon‐to‐current and the solar‐to‐hydrogen efficiencies are 11.2% and 15.7%, respectively, and its ultra‐high performance is maintained for 250 h. These record‐breaking achievement indices may be a trigger for establishing a green hydrogen economy.

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Examination of Potential of Ti-C80, Ti-B40P40 and Fe-Si44 Nanocages as Effective Catalysts for Oxygen Reduction Reaction

Zhang

2023

Silicon

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Effective oxygen reduction reaction and suppression of CO poisoning on Pt3Ni1/N-rGO electrocatalyst

Cited by 10 publications

References 68 publications

Achieving superior methanol oxidation electrocatalytic performance by surface reconstruction of PtNi nanoalloys during acid etching process

Achieving superior methanol oxidation electrocatalytic performance by surface reconstruction of PtNi nanoalloys during acid etching process

Solar Driven 15.7% Hydrogen Conversion by Harmony of Light Harvesting, Electron Transporting Bridge, and S‐Defection in a Self‐Assembled Microscale CuS/rGO/CP Photoanode

Examination of Potential of Ti-C80, Ti-B40P40 and Fe-Si44 Nanocages as Effective Catalysts for Oxygen Reduction Reaction

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