In Situ Preparation of 2D Co-B Nanosheets@1D TiO2 Nanofibers as a Catalyst for Hydrogen Production from Sodium Borohydride DOI Creative Commons

Ibrahim M. Maafa,

Nasser Zouli, Ahmed Abutaleb

et al.

Inorganics, Journal Year: 2023, Volume and Issue: 11(8), P. 342 - 342

Published: Aug. 18, 2023

In this study, 2D Co-B nanosheet-decorated 1D TiO2 nanofibers (2D NS-decorated NFs) are synthesized via electrospinning and an in situ chemical reduction technique. The as-prepared catalyst showed excellent catalytic performance H2 generation from sodium borohydride (SBH). When compared to naked nanoparticles, the activity of NFs for hydrolysis SBH is significantly enhanced, as demonstrated by high hydrogen rate (HGR) 6020 mL min−1 g−1 at 25 °C. activation energy was measured be 30.87 kJ mol−1, which agreed with reported values. also good stability. Moreover, effects SBH, concentration, temperature on were studied gain a comprehensive understanding dehydrogenation mechanism SBH. Based these findings, we conclude that effective materials

Language: Английский

Surface reconstruction of Co(OH)2 nanosheets through an in-situ PBA etching and sulfuration strategy for enhanced electrocatalytic oxygen evolution reaction DOI

Changhong Diao,

Xin Chang,

Xinyao Ding

et al.

Molecular Catalysis, Journal Year: 2024, Volume and Issue: 570, P. 114709 - 114709

Published: Nov. 21, 2024

Language: Английский

Citations

2
Tungsten-doped cobalt sulfide/selendie as high-efficient electrocatalyst for outstanding overall water splitting DOI

Xiuna Yang,

Guozhe Sui, Dongxuan Guo

et al.

Ionics, Journal Year: 2023, Volume and Issue: 29(10), P. 4115 - 4123

Published: July 16, 2023

Language: Английский

Citations

3
Hydrothermal Prepared Bramble-like Double Arrays NiCo2S4 Bifunctional Electrocatalysts for High-Efficiency Water Splitting DOI

Fayin Yu,

Feng Wang,

Jinzong Qu

et al.

ACS Applied Energy Materials, Journal Year: 2023, Volume and Issue: 6(19), P. 10038 - 10047

Published: Sept. 28, 2023

For highly efficient water-splitting techniques, excellent catalytic activities of noble metal catalysts originate from their material properties, while nonprecious depend on structural modulation as well larger exposure zones with more active sites for exhibiting catalytical ability. In this work, we prepared a bramble-like three-dimensional NiCo2S4 nano thorn array homogeneously grown nanowire precursors and adopted nickel foam carrier via facile hydrothermal method. Owing to its 3D bramble structure quick electron transfer ability sites, composite dual nanowires exhibited bifunctional activity good stability in the electrocatalytic process. It showed remarkable decomposition water outputted an HER overpotential at 86 mV present density 10 mA cm–2 OER 203 alkaline solution. addition, unique composited catalyst 1.0 M NaOH solution electrolyte has 72 h 5000 consecutive cycles without decay fixed current cm–2. This work might introduce some ideas development transition sulfides electrochemical breakdown supply preparation strategy enlarging by simply modifying microstructure.

Language: Английский

Citations

2
Dual-Modification Engineering of CoNi Alloy Realizing Robust Performance for Electrocatalytic Hydrogen Production DOI Open Access
Yutong Ye, Guorong Zhou,

Kaixun Li

et al.

Catalysts, Journal Year: 2023, Volume and Issue: 13(7), P. 1064 - 1064

Published: July 1, 2023

Anion modification and trace metal doping have been widely demonstrated to unique advantages in regulating both electrocatalytic activity the electronic structure of non-precious materials. Developing a simple practical preparation strategy is critical, but it still faces challenges. In this paper, novel type dual-modification approach put forward rationally design S, Pt-CoNi material, which can be grown directly on nickel foam (NF) one-step electrodeposition process. The multiple having plenty active sites, high conductivity, faster charge transfer endow optimized reaction kinetic for HER. prepared Pt-CoNi/NF catalyst displays excellent catalytic performance, low overpotential 116 mV at 50 mA cm−2 small Tafel slope 75 dec−1 are achieved. coupled Pt-CoNi/NF||FeOOH/NF electrolyzer delivers current density 100 potential 1.61 V as well superior stability under alkaline conditions. Our work experimentally confirms feasibility constructing dual-regulation via electrodeposition, also provides ideas controllable other high-performance electrodes electrocatalysis.

Language: Английский

Citations

1
In Situ Preparation of 2D Co-B Nanosheets@1D TiO2 Nanofibers as a Catalyst for Hydrogen Production from Sodium Borohydride DOI Creative Commons

Ibrahim M. Maafa,

Nasser Zouli, Ahmed Abutaleb

et al.

Inorganics, Journal Year: 2023, Volume and Issue: 11(8), P. 342 - 342

Published: Aug. 18, 2023

In this study, 2D Co-B nanosheet-decorated 1D TiO2 nanofibers (2D NS-decorated NFs) are synthesized via electrospinning and an in situ chemical reduction technique. The as-prepared catalyst showed excellent catalytic performance H2 generation from sodium borohydride (SBH). When compared to naked nanoparticles, the activity of NFs for hydrolysis SBH is significantly enhanced, as demonstrated by high hydrogen rate (HGR) 6020 mL min−1 g−1 at 25 °C. activation energy was measured be 30.87 kJ mol−1, which agreed with reported values. also good stability. Moreover, effects SBH, concentration, temperature on were studied gain a comprehensive understanding dehydrogenation mechanism SBH. Based these findings, we conclude that effective materials

Language: Английский

Citations

1