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Application of activated carbon in renewable energy conversion and storage systems: a review

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Abstract

The consumption of renewable energy should increase by 300% by 2050 compared to 2010 due to the rising demand for green electricity, stringent government mandates on low-carbon fuels, and competitive biofuel production costs, thus calling for advanced methods of energy production. Here we review the use of activated carbon, a highly porous graphitic form of carbon, as catalyst and electrode for for energy production and storage. The article focuses on synthesis of activated carbon, hydrogen production and storage, biodiesel production, energy recovery, and the use of machine learning. The textural properties and surface chemistry of activated carbon can be engineered using acid and base treatments, hetero-atom doping, and optimization of the activation conditions to improve the efficiency of renewable energy production and storage. Machine learning allows to optimize the synthesis of catalysts, electrodes and bioproducts, with benefits to the biorefinery industries.

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Abbreviations

%:

Percentage

°C:

Degree Celsius

AC:

Activated carbon

Ag:

Silver

Ag 1 :

Ampere per gram

ASTM:

American Society for Testing and Materials

CH4 :

Methane

CO:

Carbon monoxide

Co:

Cobalt

CO2 :

Carbon dioxide

Cs+ :

Cesium cation

eV:

Electron volt

F/g:

Farad per gram

Fe:

Iron

h:

Hour

H2 :

Hydrogen

H2O:

Water

H2SO4 :

Sulfuric acid

H3PO4 :

Phosphoric acid

HNO3 :

Nitric acid

K+ :

Potassium cation

K2CO3 :

Potassium carbonate

kcal/mol:

Kilocalorie per mole

kJ/mol:

Kilojoule per mole

KMnO4 :

Potassium permanganate

KOH:

Potassium hydroxide

M:

Molar

m2/g:

Meter square per gram

min:

Minute

mL/h:

Milliliter per hour

Mo:

Molybdenum

N2 :

Nitrogen

NaOH:

Sodium hydroxide

NH3 :

Ammonia

Ni:

Nickel

Nm:

Nanometer

O2 :

Oxygen

psi:

Pound per square inch

Pt:

Platinum

R2 :

Correlation coefficient

V:

Volt

wt.%:

Weight percentage

ZnCl2 :

Zinc chloride

γ-Al2O3 :

Gamma alumina

ΔH0 :

Reaction heat at standard temperature

π:

Pi electron

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Funding

The authors acknowledge the funding received from the Natural Sciences and Engineering Research Council of Canada (NSERC), Canada Research Chairs (CRC) program and BioFuelNet Canada.

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SN is Associate Editor of Environmental Chemistry Letters

Corresponding author

Correspondence to Ajay K. Dalai.

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None declared.

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No conflicts, informed consent, and human or animal rights applicable.

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Teimouri, Z., Nanda, S., Abatzoglou, N. et al. Application of activated carbon in renewable energy conversion and storage systems: a review. Environ Chem Lett 22, 1073–1092 (2024). https://doi.org/10.1007/s10311-023-01690-3

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  • DOI: https://doi.org/10.1007/s10311-023-01690-3

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