Sulphur-doped activated carbon as a metal-free catalyst for acetylene hydrochlorination

Qi, Xueyan; Chen, Weifeng; Zhang, Jinli

doi:10.1039/d0ra06256a

Cited by 10 publications

(5 citation statements)

References 22 publications

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“…Raman spectrometry, as presented in Figure , was used to identify the structural change of carbon after sulfur doping. The intensity ratio ( I D / I G ) of amorphous carbon at 1340 cm –1 (D band) to graphite carbon at 1580 cm –1 (G band) increased slightly with increasing sulfur content, which indicated that more carbon defects were generated after sulfur doping. , The Brunauer–Emmett–Teller (BET) surface area of samples was calculated by N 2 adsorption–desorption isotherms, as shown in Figure a. The pore-size distribution was analyzed by the Barrett–Joyner–Halenda (BJH) method from the adsorption branch, as shown in Figure b.…”

Section: Resultsmentioning

confidence: 99%

Boosted H₂O₂ Productivity by Sulfur-Doped Pd/Carbon Catalysts via Direct Synthesis from H₂ and O₂ at Atmospheric Pressure

Wang

Jiang

Yang

et al. 2022

ACS Sustainable Chem. Eng.

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It remains a challenge nowadays in the development of highly efficient catalysts for the direct synthesis of H 2 O 2 from H 2 and O 2 . In this work, we developed sulfur-doped carbon-supported Pd catalysts and systematically investigated sulfur effects on catalytic performances through various characterizations (transmission electron microscopy (TEM), N 2 adsorption−desorption, H 2 -temperature-programmed reduction (TPR)/temperature-programmed desorption (TPD), X-ray photoelectron spectroscopy (XPS), etc.). Results showed that sulfur species promoted the in situ formation of Pd nanoparticles and enhanced their dispersion on the supports. Due to the synergistic combination of active metal and support, the catalytic performance has been improved significantly in the direct synthesis of H 2 O 2 . The catalyst doped with the highest sulfur content showed the highest H 2 O 2 productivity of 7148 mmol g Pd −1 h −1 , which was nearly 4 times higher than the catalyst without sulfur doping.

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Section: Resultsmentioning

confidence: 99%

Boosted H₂O₂ Productivity by Sulfur-Doped Pd/Carbon Catalysts via Direct Synthesis from H₂ and O₂ at Atmospheric Pressure

Wang

Jiang

Yang

et al. 2022

ACS Sustainable Chem. Eng.

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“…In the case of the C1s peak, four contributions can be deconvoluted in both samples, with the primary contribution at 284.6 eV and three declining shoulders at 285.8, 287.1, and 289.4 eV. According to the literature, the main contribution corresponds to C-C and C=C bonds, while the shoulders must be attributed to C-N or C-S at 285.8 eV, C=O at 287.1 eV, and O-C=O at 289.4 eV [45,46]. The XPS spectra of O1s were deconvoluted in three main contributions at 531.75, 533.0, and 534.5 eV.…”

Section: Evaluation Of the Surface Chemistrymentioning

confidence: 86%

Effect of Porosity and Surface Chemistry on CO2 and CH4 Adsorption in S-Doped and S-/O-co-Doped Porous Carbons

Reljic

Escandell

Silvestre-Albero

2022

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The aim of this study was to determine the adsorption performance of a petroleum pitch-based activated carbon (PPAC1:3) before and after a post-treatment with H2S. In the first step, a microporous activated carbon (PPAC1:3) with a highly developed porous structure was produced through a chemical activation route with KOH. Afterward, the synthesized activated carbon was thermally treated yielding two different series of functionalized activated carbons: (i) a series of carbons were treated directly with H2S at elevated temperatures (600 °C and 800 °C), and (ii) a series of carbons were generated by combining an oxidation treatment with plasma followed by H2S treatment at elevated temperatures (600 °C and 800 °C). The chemical and structural characteristics of the S-doped and S-/O-co-doped porous carbons were investigated by means of different experimental techniques, such as XRD, RAMAN, FESEM, XPS, TPD, N2, and CO2 adsorption, and finally tested in CO2 and CH4 adsorption at atmospheric and high pressure. The functionalized porous carbons possessed specific surface areas of 2420–2690 m2/g, total pore volume of 1.05–1.18 cm3/g, and sulfur content up to 2.55 atom % (the sulfur content of the original carbon was 0.19%). After a careful analysis of the carbon dioxide and methane uptake at atmospheric (0.1 MPa) and high pressure (4 MPa), adsorption results confirm that the microporous structure is the main structural parameter defining the adsorption performance and, to a lower extent, the surface chemistry. Overall, a significant improvement in the total uptake can be appreciated after the H2S treatment.

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“…In addition, it exhibits high catalytic activity in the hydrochlorination of acetylene [16] . As observed in the metal‐catalyzed reactions, doping with nitrogen, [17] sulfur, [18] or boron [19] is effective to increase catalytic activity.…”

Section: Synthesis Of Vinyl Chloride By Hydrochlorination Of An Acety...mentioning

confidence: 99%

Recent Progress in Haloalkene Synthesis by Hydrohalogenation (HX=HCl, HBr, HI) of Alkynes

Iwai,

Nishiwaki

2024

Adv Synth Catal

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Hydrohalogenation of alkynes is one of the fundamental reactions in organic chemistry, as described in textbooks that begins from old time as Reppe’s chemistry. This method, which directly affords haloalkenes in a single step, is attractive from both industrial and academic viewpoints. Despite the long history of this reaction, novel efficient catalysts and regioselective and/or stereoselective controlled reactions are still a challenging topic. This review addresses the recent (past decade) advances in this field of organic chemistry.

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Sulphur-doped activated carbon as a metal-free catalyst for acetylene hydrochlorination

Abstract: A series of sulfur-doped spherical activated carbon (SAC) catalysts were prepared with phenyl disulfide (C12H10S2) as a sulfur source for acetylene hydrochlorination.

Cited by 10 publications

References 22 publications

Boosted H₂O₂ Productivity by Sulfur-Doped Pd/Carbon Catalysts via Direct Synthesis from H₂ and O₂ at Atmospheric Pressure

Boosted H₂O₂ Productivity by Sulfur-Doped Pd/Carbon Catalysts via Direct Synthesis from H₂ and O₂ at Atmospheric Pressure

Effect of Porosity and Surface Chemistry on CO2 and CH4 Adsorption in S-Doped and S-/O-co-Doped Porous Carbons

Recent Progress in Haloalkene Synthesis by Hydrohalogenation (HX=HCl, HBr, HI) of Alkynes

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Sulphur-doped activated carbon as a metal-free catalyst for acetylene hydrochlorination

Abstract: A series of sulfur-doped spherical activated carbon (SAC) catalysts were prepared with phenyl disulfide (C12H10S2) as a sulfur source for acetylene hydrochlorination.

Cited by 10 publications

References 22 publications

Boosted H2O2 Productivity by Sulfur-Doped Pd/Carbon Catalysts via Direct Synthesis from H2 and O2 at Atmospheric Pressure

Boosted H2O2 Productivity by Sulfur-Doped Pd/Carbon Catalysts via Direct Synthesis from H2 and O2 at Atmospheric Pressure

Effect of Porosity and Surface Chemistry on CO2 and CH4 Adsorption in S-Doped and S-/O-co-Doped Porous Carbons

Recent Progress in Haloalkene Synthesis by Hydrohalogenation (HX=HCl, HBr, HI) of Alkynes

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Boosted H₂O₂ Productivity by Sulfur-Doped Pd/Carbon Catalysts via Direct Synthesis from H₂ and O₂ at Atmospheric Pressure

Boosted H₂O₂ Productivity by Sulfur-Doped Pd/Carbon Catalysts via Direct Synthesis from H₂ and O₂ at Atmospheric Pressure