The direct carbonization of algae biomass to hierarchical porous carbons and CO2 adsorption properties

Tian, Zhongwei; Qiu, Yin; Zhou, Jicheng; Zhao, Xuebo; Cai, Jinjun

doi:10.1016/j.matlet.2016.05.169

Cited by 50 publications

(36 citation statements)

References 25 publications

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“…Enteromorpha prolifera (EP) is a marine macroalgae which has rapidly grown due to warmer climate and eutrophication. This has led to a large‐scale of EP gathered off the coasts of China every year . The conversion of EP into functional carbons that can be used as electrode materials in supercapacitors constitutes a convenient choice that could help solve this environmental problem.…”

Section: Introductionsupporting

confidence: 53%

“…The conversion of EP into functional carbons that can be used as electrode materials in supercapacitors constitutes a convenient choice that could help solve this environmental problem. We reported N‐doped hierarchical carbons from direct carbonization of EP algae with surface area of 422 m 2 /g . Lately, several studies have also reported EP ‐based carbons with surface areas up to 3330 m 2 /g obtained through conventional carbonization, followed by KOH chemical activation for electrochemical storage applications,, confirming that EP would be a good choice as raw material for N‐doped carbons.…”

Section: Introductionsupporting

confidence: 53%

“…Raman spectroscopy results confirmed the low degree of graphitization of samples (Figure S1). All the spectra exhibited two bands at around 1598 and 1347 cm −1 from the G‐ and D‐bands, respectively, commonly present in carbons . The ratio between relative intensity of D‐band and G‐band (I D /I G ) was used to assess the degree of graphitization of the samples,, with the smaller ratio meaning higher degree of ordering.…”

Section: Resultsmentioning

confidence: 97%

“…The x‐ray diffraction patterns (XRD) of the hydrothermal N‐doped carbons AHC‐ y (where y represents the activation temperature) (Figure S1a) exhibited two broad very weak bands at 23 and 44° 2θ. These corresponded to the (002) and (100) reflections, typically observed in carbons ,. However, the low intensity and broadness of the two peaks indicated a low degree of graphitization for the carbons produced.…”

Section: Resultsmentioning

confidence: 99%

“…Fresh EP was collected from the coast of Qingdao, China, in July 2016, followed by the removal of impurities and subsequently freeze‐dried, as described elsewhere ,. Typically, 2.5 g freeze‐dried EP were dispersed in 70 mL distilled water and hydrothermally treated in a 100 mL autoclave at 180 °C for 24 h .…”

Section: Methodsmentioning

confidence: 99%

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High Performance N‐Doped Carbon Electrodes Obtained via Hydrothermal Carbonization of Macroalgae for Supercapacitor Applications

et al. 2018

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The conversion of bio‐waste into useful porous carbons constitutes a very attractive approach to contribute to the development of sustainable energy economy, even more as they can be used in energy storage devices. Here we report the synthesis of N‐doped carbons from hydrothermal carbonization of macroalgae, Enteromorpha prolifera (EP), followed by a mild KOH activation step. The obtained N‐doped carbons exhibited surface areas of up to ∼2000 m2/g with N‐loadings varied in the range of 1.4∼2.9 at %. By modifying activation temperature, we were able to tune the surface chemistry and porosity, achieving excellent control of their properties. The specific capacitance reached values of up to 200 F/g at 1 A/g in 6 M KOH for the sample obtained at activation temperature of 700 °C (AHC‐700). The symmetric supercapacitor using the sample activated at 800 °C (AHC‐800) as electrodes exhibited the highest cycling stability of the samples studied in this work, with capacitance retention of up to 96 % at 10 A/g, even after 10,000 cycles, constituting the highest reported for biomass‐derived carbon electrodes. These results show the great potential of N‐doped carbons as electrodes for supercapacitors and confirm the excellent electrochemical properties of biomass‐derived carbons in energy storage technologies.

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Section: Introductionsupporting

confidence: 53%

Section: Introductionsupporting

confidence: 53%

Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

High Performance N‐Doped Carbon Electrodes Obtained via Hydrothermal Carbonization of Macroalgae for Supercapacitor Applications

et al. 2018

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Natural Products Derived Porous Carbons for CO₂ Capture

Khosrowshahi,

Mashhadimoslem,

Shayesteh

et al. 2023

Advanced Science

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As it is now established that global warming and climate change are a reality, international investments are pouring in and rightfully so for climate change mitigation. Carbon capture and separation (CCS) is therefore gaining paramount importance as it is considered one of the powerful solutions for global warming. Sorption on porous materials is a promising alternative to traditional carbon dioxide (CO2) capture technologies. Owing to their sustainable availability, economic viability, and important recyclability, natural products‐derived porous carbons have emerged as favorable and competitive materials for CO2 sorption. Furthermore, the fabrication of high‐quality value‐added functional porous carbon‐based materials using renewable precursors and waste materials is an environmentally friendly approach. This review provides crucial insights and analyses to enhance the understanding of the application of porous carbons in CO2 capture. Various methods for the synthesis of porous carbon, their structural characterization, and parameters that influence their sorption properties are discussed. The review also delves into the utilization of molecular dynamics (MD), Monte Carlo (MC), density functional theory (DFT), and machine learning techniques for simulating adsorption and validating experimental results. Lastly, the review provides future outlook and research directions for progressing the use of natural products‐derived porous carbons for CO2 capture.

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Generation of Sustainable Energy from Agro‐Residues through Thermal Pretreatment for Developing Nations: A Review

Ibitoye

Jen

Mahamood

et al. 2021

Adv Energy and Sustain Res

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Energy is a prerequisite for any nation's industrial, social, and economic advancements. [1][2][3][4] Energy can broadly be categorized into renewable and nonrenewable energies. Nonrenewable energies are energy that cannot be replenished over a short period. Examples of such energy are coal, nuclear energy, natural gas, and crude oil. Renewable energies, in contrast, are those energies that are replenishable over a short period. This form of energy includes solar, hydro, tidal, wind, biomass energy, etc. Biomass energy is the energy generated from biomass materials. Biomass material could be woody (such as teak, mahogany), nonwoody (such as agro-residues, industrial waste), and animal materials. [5] Agroresidues are described as all organic materials that are generated as byproducts from agricultural activities. These byproducts constitute the main part of biomass feedstock's total annual production, which forms an essential and sustainable source of energy for industrial and domestic applications. [6] They are material that are of benefit to humankind, though their economic benefits are less than the cost of transformation for advantageous use. [7] Agro-residues can be divided into residues generated on the field and residues generated during the processing of agricultural products. [8] Field-based residues include but are not limited to tobacco stalks, maize stalks, sugar cane tops, rice straw, soybean straw/pods, and cocoa pods. In contrast, process-based include peanuts shell, rice husk, maize cob, bagasse, and coffee husk. Agro-residues are available in large quantities in an area with a high level of agricultural activities. [9] In developing nations, major agricultural activities are recorded in the rural areas, resulting in a larger quantity of agro-residues in these areas. [10,11] Most of the time, the farmers in developing nations' dump these residues in an open field or

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The direct carbonization of algae biomass to hierarchical porous carbons and CO2 adsorption properties

Cited by 50 publications

References 25 publications

High Performance N‐Doped Carbon Electrodes Obtained via Hydrothermal Carbonization of Macroalgae for Supercapacitor Applications

High Performance N‐Doped Carbon Electrodes Obtained via Hydrothermal Carbonization of Macroalgae for Supercapacitor Applications

Natural Products Derived Porous Carbons for CO₂ Capture

Generation of Sustainable Energy from Agro‐Residues through Thermal Pretreatment for Developing Nations: A Review

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The direct carbonization of algae biomass to hierarchical porous carbons and CO2 adsorption properties

Cited by 50 publications

References 25 publications

High Performance N‐Doped Carbon Electrodes Obtained via Hydrothermal Carbonization of Macroalgae for Supercapacitor Applications

High Performance N‐Doped Carbon Electrodes Obtained via Hydrothermal Carbonization of Macroalgae for Supercapacitor Applications

Natural Products Derived Porous Carbons for CO2 Capture

Generation of Sustainable Energy from Agro‐Residues through Thermal Pretreatment for Developing Nations: A Review

Contact Info

Product

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About

Natural Products Derived Porous Carbons for CO₂ Capture