A new nanoporous nitrogen-doped highly-efficient carbonaceous CO2 sorbent synthesized with inexpensive urea and petroleum coke

Bai, Ruizhu; Yang, Mingli; Hu, Gengshen; Xu, Leqiong; Hu, Xin; Li, Zhiming; Wang, Sunli; Dai, Wei; Fan, Maohong

doi:10.1016/j.carbon.2014.09.079

Cited by 157 publications

(128 citation statements)

References 41 publications

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“…Except for the almost unchanged oxidized‐N, the other N species show an increase trend in NCs with increasing total N content. It was documented that pyrrolic‐N generally has a greater contribution to CO 2 capture than other species, whereas graphitic‐N and pyridinic‐N are the most active sites in ORR . The high resolution S 2p peaks can be fitted into four peaks centered at around 164.5, 165.5, 167.9, and 169.3 eV, respectively.…”

Section: Resultsmentioning

confidence: 99%

Heteroatom (N or N‐S)‐Doping Induced Layered and Honeycomb Microstructures of Porous Carbons for CO₂ Capture and Energy Applications

Tian

Zhang

Sun

et al. 2016

Adv Funct Materials

185

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Increasing global challenges such as climate change, environmental pollution, and energy shortage have stimulated the worldwide explorations into novel and clean materials for their applications in the capture of carbon dioxide, a major greenhouse gas, and toxic pollutants, energy conversion, and storage. In this study, two microstructured carbons, namely N‐doped pillaring layered carbon (NC) and N, S codoped honeycomb carbon (NSC), have been fabricated through a one‐pot pyrolysis process of a mixture containing glucose, sodium bicarbonate, and urea or thiourea. The heteroatom doping is found to induce tailored microstructures featuring highly interconnected pore frameworks, high sp2‐C ratios, and high surface areas. The formation mechanism of the varying pore frameworks is believed to be hydrogen‐bond interactions. NSC displays a similar CO2 adsorption capacity (4.7 mmol g−1 at 0 °C), a better CO2/N2 selectivity, and higher activity in oxygen reduction reaction as compared with NC‐3 (the NC sample with the highest N content of 7.3%). NSC favors an efficient four‐electron reduction pathway and presents better methanol tolerance than Pt/C in alkaline media. The porous carbons also exhibit excellent rate performance as supercapacitors.

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Section: Resultsmentioning

confidence: 99%

Heteroatom (N or N‐S)‐Doping Induced Layered and Honeycomb Microstructures of Porous Carbons for CO₂ Capture and Energy Applications

Tian

Zhang

Sun

et al. 2016

Adv Funct Materials

185

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“…Many CO 2 selective sorbents that are decorated with amine 48 functionalization and N 2 -doping on carbon as well as MOFs [12] 49 have been well-documented [13]. 50 Activated carbon and carbon nanotubes have been studied 51 intensively as adsorbent due to high surface area and porosity. 52 Activated carbon can be derived by many ways either by physical or 53 chemical activation [14][15][16] and microwave treatment [17].…”

Section: Introductionmentioning

confidence: 99%

Breakthrough adsorption studies of mixed gases on mango (Mangifera indicaL.) seed shell derived activated carbon extrudes

Munusamy

Somani

Bajaj

2015

Journal of Environmental Chemical Engineering

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“…Clausiuse‐Clapeyron equation was used to count the equivalent heat of adsorption (Q st ) on nitrogen‐rich oil residue adsorbent prepared utilizing the isotherms of CO 2 adsorption at 298 K and 273 K. At the same time, the adsorption isobaric line of sample OAC‐500‐2.5 was shown in Figure A. The Q st value in the initial adsorption stage (low CO 2 loading) for the studied carbons was found to be less than 26 kJ/mol (Figure ), which was lower than the values reported for some representative N‐doped adsorbents . These values belonged to the category of physical adsorption.…”

Section: Resultsmentioning

confidence: 87%

“…The Q st value in the initial adsorption stage (low CO 2 loading) for the studied carbons was found to be less than 26 kJ/mol (Figure 11), which was lower than the values reported for some representative N-doped adsorbents. 40,41 These values belonged to the category of physical adsorption. Too high Q st indicated plentiful energy required to regenerate the adsorbent.…”

Section: Co 2 Adsorption Propertiesmentioning

confidence: 99%

One‐pot synthesis of high N‐doped porous carbons derived from a N‐rich oil palm biomass residue in low temperature for CO ₂ capture

et al. 2020

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Summary Porous carbon materials have been widely used for CO2 adsorption, but their preparation was subject to conditions such as raw material cost, activator corrosion, and temperature. In this study, nitrogen‐doped porous carbonaceous adsorbents were prepared in a low temperature region (400‐550°C) by one‐step composite nitrogen doping method, using low‐cost oil residue as raw materials and less corrosive NaNH2 as activator. The CO2 adsorption performances of the prepared N‐doped porous adsorbents were systematically explored. The results showed that optimal oil residue‐derived carbonaceous adsorbent owned excellent amount of CO2 adsorption up to 3.51 and 5.63 mmol/g at 298 and 273 K under 1 bar, respectively. It was discovered that the congenerous influences of porous structure, nitrogen content and Vn of the adsorbent affected their CO2 adsorption performances under 1 bar. Importantly, these oil residue porous carbonaceous adsorbent also was verified owning fine selectivity of the CO2 over N2 (15.7), which attributed to its high Vn and nitrogen content. Furthermore, optimal sample OAC‐500‐2.5 owned medium Qst (21‐26 kJ/mol), which was beneficial practical application. This work may inspire new sparks on novel nitrogen‐doped adsorbent with inexpensive precursor, low activation temperature and simple preparative tactic, indicating that the nitrogen‐doped sample is promising in the practical situation of CO2 adsorption.

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A new nanoporous nitrogen-doped highly-efficient carbonaceous CO2 sorbent synthesized with inexpensive urea and petroleum coke

Cited by 157 publications

References 41 publications

Heteroatom (N or N‐S)‐Doping Induced Layered and Honeycomb Microstructures of Porous Carbons for CO₂ Capture and Energy Applications

Heteroatom (N or N‐S)‐Doping Induced Layered and Honeycomb Microstructures of Porous Carbons for CO₂ Capture and Energy Applications

Breakthrough adsorption studies of mixed gases on mango (Mangifera indicaL.) seed shell derived activated carbon extrudes

One‐pot synthesis of high N‐doped porous carbons derived from a N‐rich oil palm biomass residue in low temperature for CO ₂ capture

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A new nanoporous nitrogen-doped highly-efficient carbonaceous CO2 sorbent synthesized with inexpensive urea and petroleum coke

Cited by 157 publications

References 41 publications

Heteroatom (N or N‐S)‐Doping Induced Layered and Honeycomb Microstructures of Porous Carbons for CO2 Capture and Energy Applications

Heteroatom (N or N‐S)‐Doping Induced Layered and Honeycomb Microstructures of Porous Carbons for CO2 Capture and Energy Applications

Breakthrough adsorption studies of mixed gases on mango (Mangifera indicaL.) seed shell derived activated carbon extrudes

One‐pot synthesis of high N‐doped porous carbons derived from a N‐rich oil palm biomass residue in low temperature for CO 2 capture

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Product

Resources

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Heteroatom (N or N‐S)‐Doping Induced Layered and Honeycomb Microstructures of Porous Carbons for CO₂ Capture and Energy Applications

Heteroatom (N or N‐S)‐Doping Induced Layered and Honeycomb Microstructures of Porous Carbons for CO₂ Capture and Energy Applications

One‐pot synthesis of high N‐doped porous carbons derived from a N‐rich oil palm biomass residue in low temperature for CO ₂ capture