Synthesis of potassium Bitartrate-derived porous carbon via a facile and Self-Activating strategy for CO2 adsorption application

Lu, Tingyan; Bai, Jiali; Demir, Müslüm; Hu, Xin; Huang, Jiamei; Wang, Linlin

doi:10.1016/j.seppur.2022.121368

Cited by 63 publications

(12 citation statements)

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“…Various physical adsorbents such as carbonaceous material [ 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 ], zeolite [ 22 ], ordered mesoporous silica [ 23 ], metal-organic frameworks (MOFs) [ 24 , 25 , 26 ], porous polymers [ 27 , 28 , 29 ] and membrane-based systems [ 30 ] have been investigated to capture CO 2 . Among these, porous carbons have been receiving significant attention for their wide-scale availability, ease of regeneration, low cost, high chemical/thermal stability, large surface area and capability of being tuned for applications not only for adsorbents but also for supercapacitors, battery electrodes and catalyst supports [ 31 , 32 , 33 , 34 , 35 , 36 ]. Moreover, the process of using porous materials for CO 2 adsorption has been reported to have less energy requirements thanks to the lower adsorption energy needed relative to absorption processes.…”

Section: Introductionmentioning

confidence: 99%

One-Pot Synthesis of N-Rich Porous Carbon for Efficient CO2 Adsorption Performance

Bai

Huang

et al. 2022

Molecules

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N-enriched porous carbons have played an important part in CO2 adsorption application thanks to their abundant porosity, high stability and tailorable surface properties while still suffering from a non-efficient and high-cost synthesis method. Herein, a series of N-doped porous carbons were prepared by a facile one-pot KOH activating strategy from commercial urea formaldehyde resin (UF). The textural properties and nitrogen content of the N-doped carbons were carefully controlled by the activating temperature and KOH/UF mass ratios. As-prepared N-doped carbons show 3D block-shaped morphology, the BET surface area of up to 980 m2/g together with a pore volume of 0.52 cm3/g and N content of 23.51 wt%. The optimal adsorbent (UFK-600-0.2) presents a high CO2 uptake capacity of 4.03 mmol/g at 0 °C and 1 bar. Moreover, as-prepared N-doped carbon adsorbents show moderate isosteric heat of adsorption (43–53 kJ/mol), acceptable ideal adsorption solution theory (IAST) selectivity of 35 and outstanding recycling performance. It has been pointed out that while the CO2 uptake was mostly dependent on the textural feature, the N content of carbon also plays a critical role to define the CO2 adsorption performance. The present study delivers favorable N-doped carbon for CO2 uptake and provides a promising strategy for the design and synthesis of the carbon adsorbents.

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Section: Introductionmentioning

confidence: 99%

One-Pot Synthesis of N-Rich Porous Carbon for Efficient CO2 Adsorption Performance

Bai

Huang

et al. 2022

Molecules

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“…We further measured the adsorption kinetic of PC‐800‐0.75 with the highest CO 2 adsorption capacity. As shown in Figure S5, it takes only less than 40 s for PC‐800‐0.75 to reach its adsorption maximum, indicating a fast adsorption kinetic which is benefical for practical applicaitons [31–34] …”

Section: Resultsmentioning

confidence: 99%

“…As shown in Figure S5, it takes only less than 40 s for PC-800-0.75 to reach its adsorption maximum, indicating a fast adsorption kinetic which is benefical for practical applicaitons. [31][32][33][34] Adsorption heat, which can reflect the interaction between the adsorbent and CO 2 molecules, should be not too high or too low. A high CO 2 adsorption heat increases the energy consumption for regenerating adsorbent, while a low CO 2 adsorption heat indicates a low CO 2 adsorption capacity and selectivity, especially at low pressures.…”

Section: Chemistryselectmentioning

confidence: 99%

A Peach‐Kernel‐Derived Ultramicroporous Carbon with Extremely High CO₂‐Capture Ability

2023

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Ultra-microporous carbon materials with high CO 2 capture ability are prepared by two-step carbonization of peach kernels, including pre-carbonization at a relatively lower temperature (400 °C) and KOH activation at a higher temperature (700-900 °C). Notably, the micropore proportion of the obtained carbon is up to 97.65 %, indicating almost all the pores are microporous. The optimized ultra-microporous carbon material exhibits an extremely high CO 2 adsorption capacity of up to 4.92 mmol g À 1 at 1 bar, and 1.64 mmol g À 1 at 0.15 bar and 25 °C, and good CO 2 /N 2 selectivity, which makes it one of the best CO 2 adsorption materials. The specific surface areas of the prepared materials are in the range of 700-1000 m 2 g À 1 . Our results show that there is no direct relationship between the specific surface and CO 2 adsorption capacity. It reveals that the pore structure and microporous porosity determine the interaction between CO 2 molecules and the carbon materials in our work. In addition, the ultra-microporous carbon is feasible for commercial-scale application, which provides a new adsorbent for industrial CO 2 capture.

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“…The CO 2 /N 2 IAST selectivity of the NDSC-700 sample was measured as 18, comparable or even better than certain porous carbons. 30,54,61 Adsorption kinetics of the representative NDSC-700 sample was carried out at 25 °C using a thermogravimetric analyzer in order to determine the adsorption rate. It is notable from Figure 7b that the kinetics of the CO 2 uptake occur in two stages.…”

Section: Textural Properties Of Carbonsmentioning

confidence: 99%

Self-Activating Approach for Synthesis of 2,6-Naphthalene Disulfonate Acid Disodium Salt-Derived Porous Carbon and CO₂ Capture Performance

Bai

Huang

et al. 2023

Energy Fuels

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Porous carbon is considered an effective adsorbent for CO2 uptake thanks to its high textural feature, tunable surface decoration, and stable chemical/physical characteristics. Herein, a one-pot self-activating synthesis approach has been introduced to fabricate disodium 2,6-naphthalene disulfonate (NDS)-derived self-S-doped porous carbon. With this method, there is no external chemical activating agents for the activation process, and the self-activating process occurs by releasing CO, H2O, and CO2 gases during pyrolysis treatment. It was found that activating temperatures can carefully control the porous textural and elemental compositions of the as-prepared carbons. Upon the activating process, the optimal S-doped porous carbon was prepared at 700 °C, providing CO2 uptake capacities of 2.36 and 3.56 mmol/g at 25 and 0 °C and 1 bar, respectively. An in-depth investigation indicates that the joint effect of narrow microporosity and S content determines the CO2 uptake for this series of carbons. In addition, these NDS-derived self-S-doped porous carbons exhibit moderate CO2 heats of adsorption, fast adsorption kinetics, reasonable CO2/N2 selectivities, good dynamic CO2 capture capacities, and stable recyclabilities. The presented synthesis method is promising for fabricating facile carbon-based adsorbents from various organic precursors.

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Synthesis of potassium Bitartrate-derived porous carbon via a facile and Self-Activating strategy for CO2 adsorption application

Cited by 63 publications

References 64 publications

One-Pot Synthesis of N-Rich Porous Carbon for Efficient CO2 Adsorption Performance

One-Pot Synthesis of N-Rich Porous Carbon for Efficient CO2 Adsorption Performance

A Peach‐Kernel‐Derived Ultramicroporous Carbon with Extremely High CO₂‐Capture Ability

Self-Activating Approach for Synthesis of 2,6-Naphthalene Disulfonate Acid Disodium Salt-Derived Porous Carbon and CO₂ Capture Performance

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Synthesis of potassium Bitartrate-derived porous carbon via a facile and Self-Activating strategy for CO2 adsorption application

Cited by 63 publications

References 64 publications

One-Pot Synthesis of N-Rich Porous Carbon for Efficient CO2 Adsorption Performance

One-Pot Synthesis of N-Rich Porous Carbon for Efficient CO2 Adsorption Performance

A Peach‐Kernel‐Derived Ultramicroporous Carbon with Extremely High CO2‐Capture Ability

Self-Activating Approach for Synthesis of 2,6-Naphthalene Disulfonate Acid Disodium Salt-Derived Porous Carbon and CO2 Capture Performance

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Product

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A Peach‐Kernel‐Derived Ultramicroporous Carbon with Extremely High CO₂‐Capture Ability

Self-Activating Approach for Synthesis of 2,6-Naphthalene Disulfonate Acid Disodium Salt-Derived Porous Carbon and CO₂ Capture Performance