Fabrication of a hollow sphere N,S co-doped bifunctional carbon catalyst for sustainable fixation of CO₂ to cyclic carbonates

Abstract

Execution of compositional doping by more than one element simultaneously inside carbon matrix is a challenging task for designing advanced carbon-based materials and nanotechnology. Herein, we have integrated a template-free...

In‐situ Synthesis of Ionic Liquids on B‐doped Mesoporous SiO2 Catalyst for Epoxide‐CO2 Cycloaddition

“…TGA analysis was performed on NETZSCH STA449F3 simultaneous thermogravimetric analyzer under air in the range from room temperature to 800 °C with heating rate of 10 °C/min. Solid state 11 B and 13 C magic-angle spinning (MAS) NMR measurements were performed on Varian Infinity Plus 400 NMR spectrometer. The elemental mapping analysis was carried out on SEM (SU8010, Hitachi) operating at 15 kV.…”

“…Nevertheless, the high energy‐cost process prevented the wide industrialization for CO 2 conversion to cyclic carbonates due to the inert and stable CO 2 molecule. Over the past two decades, abundant homo‐ or hetero‐geneous catalysts have emerged for CO 2 cycloaddition catalysis, such as ionic liquids (ILs), [4,5] organic‐metal complexes, [6,7] metal‐organic frameworks (MOFs), [8,9] modified mesoporous SiO 2 [10,11] and porous carbon [12,13] …”

“…Over the past two decades, abundant homo-or hetero-geneous catalysts have emerged for CO 2 cycloaddition catalysis, such as ionic liquids (ILs), [4,5] organic-metal complexes, [6,7] metal-organic frameworks (MOFs), [8,9] modified mesoporous SiO 2 [10,11] and porous carbon. [12,13] Among these catalysts, ILs can effectively catalyze epoxide-CO 2 cycloaddition owing to its special ion pair structure. However, isolating difficulty and high viscosity impede their wide applications in industry.…”

Bifunctional Metal‐free Heterogeneous Catalyst for the Synthesis of Methanol and Diols from CO2 and Epoxide

“…[2] As a remedy to reduce the CO 2 concentration from atmosphere, scientists are interested to utilize this abundant CO 2 present in air as an attractive C1 building block for the synthesis of valuable organic chemicals as CO 2 is an inexpensive, non-toxic and renewable carbon source. [3][4][5][6][7][8][9][10][11][12][13][14][15] In recent years many research groups focused on the synthesis of methanol from CO 2 either by its direct reduction or various indirect routes [16][17][18][19] because methanol can be utilized as an excellent alternative fuel, [20] solvent and feedstock for the production of many valuable chemicals. [21][22][23][24] In the recent time researchers are focusing their attention to synthesize methanol from CO 2 .…”

“…This steady increase in atmospheric CO 2 amount is very alarming to mankind as these are largely responsible for global warming, ocean acidification and subsequent change in weather [2] . As a remedy to reduce the CO 2 concentration from atmosphere, scientists are interested to utilize this abundant CO 2 present in air as an attractive C1 building block for the synthesis of valuable organic chemicals as CO 2 is an inexpensive, non‐toxic and renewable carbon source [3–15] . In recent years many research groups focused on the synthesis of methanol from CO 2 either by its direct reduction or various indirect routes [16–19] because methanol can be utilized as an excellent alternative fuel, [20] solvent and feedstock for the production of many valuable chemicals [21–24] .…”