KOH-based porous carbon from date palm seed: preparation, characterization, and application to phenol adsorption

2014 ◽  
Vol 70 (10) ◽  
pp. 1633-1640 ◽  
Author(s):  
K. Suresh Kumar Reddy ◽  
Pravin Kannan ◽  
Ahmed Al Shoaibi ◽  
C. Srinivasakannan
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Date Palm ◽  
Low Cost ◽  
Inert Atmosphere ◽  
Average Pore ◽  
Activation Temperature ◽  
Freundlich Isotherms ◽  
Layer Adsorption ◽  
Seed Biomass

The date palm seed being one of the major forms of biomass produced from the date industry in UAE, its potential to be an appropriate precursor for the preparation of porous carbon utilizing KOH as an activating agent is assessed in the present work. The porous carbon is prepared at an activation temperature of 600 °C, impregnation ratio of 2, and activation duration of 1 hour, in an inert atmosphere using a conventional horizontal furnace. The resultant porous carbon has a Brunauer–Emmett–Teller surface area of 892 m2/g, pore volume of 0.45 cm3/g, and an average pore diameter of 1.97 nm. This porous carbon was used for adsorption studies at different initial concentrations (100–400 mg/l) and temperatures (30–50 °C). The adsorption isotherm parameters for the Langmuir and Freundlich models were determined using experimental adsorption data and it was found that both Langmuir and Freundlich isotherms described well the adsorption behavior of phenol on porous carbon. The mono layer adsorption capacity was observed to be 333 mg/g, which is highest for the reported date pam seed biomass-based porous carbon. From the data obtained, it was concluded that the removal of phenol from aqueous solution by porous carbon prepared from data palm seed is a low-cost process with an extremely high performance.

scholarly journals Preparation of High-Performance Activated Carbon from Coffee Grounds after Extraction of Bio-Oil

Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 257
Author(s):  
Jie Ren ◽  
Nanwei Chen ◽  
Li Wan ◽  
Guojian Li ◽  
Tao Chen ◽  
...  
Keyword(s):  
Activated Carbon ◽  
High Performance ◽  
Average Pore Size ◽  
Total Pore Volume ◽  
Micropore Volume ◽  
Bet Surface Area ◽  
Average Pore ◽  
Activation Temperature ◽  
Coffee Grounds ◽  
Bio Oil

In this study, a new method for economical utilization of coffee grounds was developed and tested. The resulting materials were characterized by proximate and elemental analyses, thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and N2 adsorption–desorption at 77 K. The experimental data show bio-oil yields reaching 42.3%. The optimal activated carbon was obtained under vacuum pyrolysis self-activation at an operating temperature of 450 °C, an activation temperature of 600 °C, an activation time of 30 min, and an impregnation ratio with phosphoric acid of 150 wt.%. Under these conditions, the yield of activated carbon reached 27.4% with a BET surface area of 1420 m2·g−1, an average pore size of 2.1 nm, a total pore volume of 0.747 cm3·g−1, and a t-Plot micropore volume of 0.428 cm3·g−1. In addition, the surface of activated carbon looked relatively rough, containing mesopores and micropores with large amounts of corrosion pits.

Facile sonochemical assisted synthesis of a hybrid red–black phosphorus/sulfonated porous carbon composite for high-performance supercapacitors

2020 ◽  
Vol 56 (52) ◽  
pp. 7096-7099 ◽  
Author(s):  
Arthi Gopalakrishnan ◽  
Sushmee Badhulika
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Low Cost ◽  
Carbon Composite ◽  
Black Phosphorus ◽  
Supercapacitor Application ◽  
Novel Synthesis

Low-cost novel synthesis of a hybrid red–black phosphorus/sulfonated porous carbon composite for supercapacitor application.

Nitrogen-Doped Porous Carbon Nanosheets as Low-Cost, High-Performance Anode Material for Sodium-Ion Batteries

ChemSusChem ◽  
2012 ◽  
Vol 6 (1) ◽  
pp. 56-60 ◽  
Author(s):  
Heng-guo Wang ◽  
Zhong Wu ◽  
Fan-lu Meng ◽  
De-long Ma ◽  
Xiao-lei Huang ◽  
...  
Keyword(s):  
Anode Material ◽  
Porous Carbon ◽  
High Performance ◽  
Low Cost ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Carbon Nanosheets ◽  
Nitrogen Doped

Methanol tolerant, high performance, noble metal free electrocatalyst developed from polyaniline and ferric chloride for the oxygen reduction reaction

RSC Advances ◽  
2015 ◽  
Vol 5 (112) ◽  
pp. 92648-92655 ◽  
Author(s):  
Sankararao Mutyala ◽  
Jayaraman Mathiyarasu ◽  
Ashok Mulchandani
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Noble Metal ◽  
Ferric Chloride ◽  
High Performance ◽  
Low Cost ◽  
Inert Atmosphere ◽  
Reduction Reaction ◽  
Metal Free ◽  
Methanol Tolerant

Here, we report a low-cost, noble metal free Fe–N–C catalyst prepared using carbonized polyaniline (PANI) and ferric chloride as precursors in an inert atmosphere for oxygen reduction reaction.

Preparation of High-Performance Continuous Boron Nitride Fibers from Boracic Acid

2014 ◽  
Vol 602-603 ◽  
pp. 151-154 ◽  
Author(s):  
Chuan Shan Li ◽  
Ru Li ◽  
Xiao Yong Du ◽  
Ming Xia Zhang ◽  
Jie Tang ◽  
...  
Keyword(s):  
Boron Nitride ◽  
High Performance ◽  
Large Scale ◽  
Low Cost ◽  
Inert Atmosphere ◽  
Fiber Reinforced Composites ◽  
Boric Oxide ◽  
Mechanical Function ◽  
Reinforced Composites ◽  
Conventional Manner

Continuous multi-filament boron nitride fibers have been prepared on a large scale using the melt drawn technique from a low-cost boracic acid. Boracic acid was heated to obtain the molten boric oxide in a melting tank. Molten boric oxide was melt spun in a conventional manner through an 200-tip bushing to produce a continuous multifilament yarn consisting of 200 filaments of boric oxide. Boric oxide fibers were nitrided in an ammonia and were annealed in an inert atmosphere while simultaneously subjecting the fibers to sufficient longitudinal tension as to at least prevent longitudinal shrinkage of the fibers. The resulting fibers, consisting essentially of boron nitride, were less than about 8 μm in diameter and greater than 500 m in length. It indicated that the boron nitride fibers has a sound mechanical function with tensile strength of 1.40 GPa. The continuous boron nitride fibers of high-performance were especially suitable for reinforcing plastic, ceramic or metal matrices in the preparation of fiber reinforced composites.

Template-free synthesis of hierarchical porous carbon derived from low-cost biomass for high-performance supercapacitors

RSC Advances ◽  
2014 ◽  
Vol 4 (93) ◽  
pp. 51072-51079 ◽  
Author(s):  
Li Wang ◽  
Yaolin Zheng ◽  
Qinying Zhang ◽  
Li Zuo ◽  
Shuiliang Chen ◽  
...  
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Low Cost ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous ◽  
Template Free

A Low-Cost and High-Purity Porous Carbon Spheres Based on Starch Gel Toward High-Performance Supercapacitors

NANO ◽  
2020 ◽  
Vol 15 (11) ◽  
pp. 2050147
Author(s):  
Wen-Tong Yang ◽  
Hao-Yang Xie ◽  
Min-Peng Li ◽  
Rong-Rong Han ◽  
Chun Lu ◽  
...  
Keyword(s):  
Energy Density ◽  
High Purity ◽  
Porous Carbon ◽  
High Performance ◽  
Aqueous Electrolyte ◽  
Low Cost ◽  
Liquid Electrolyte ◽  
Carbon Spheres ◽  
Starch Gel ◽  
Porous Carbon Spheres

The development of low-cost, high-purity and high-performance porous carbon is of great significance for promoting the commercial application of supercapacitors. In this paper, porous carbon spheres (PCSs) with excellent electrochemical performance were obtained by carbonization and activation of starch gel spheres as precursor which is prepared by microemulsion process. The obtained PCSs exhibit both microporous and mesoporous structure, showing a large specific surface area of 1117.0 m2 g[Formula: see text] and exhibiting a high specific capacitance of 221.3 F g[Formula: see text]at a current density of 0.5 A g[Formula: see text] in aqueous electrolyte (and still displays capacity of 146.0 F g[Formula: see text] in ion liquid electrolyte). The PCSs//PCSs symmetric supercapacitor (SSC) based on aqueous electrolyte exhibits an energy density of 10.9 Wh kg[Formula: see text] at a power density of 300.0 W kg[Formula: see text], whereas that based on ion liquid electrolyte achieves a high energy density of 29.0 Wh kg[Formula: see text] at 650.0 W kg[Formula: see text]. The study provides a new idea to develop low-cost, high-purity and high-performance porous carbon materials for supercapacitors.

N-O-P co-doped porous carbon aerogel derived from low-cost biomass as electrode material for high-performance supercapacitors

2021 ◽  
Vol 120 ◽  
pp. 108614
Author(s):  
Huiming Zhou ◽  
Rui Shu ◽  
Feiqiang Guo ◽  
Jiaming Bai ◽  
Yinbo Zhan ◽  
...  
Keyword(s):  
Electrode Material ◽  
Porous Carbon ◽  
High Performance ◽  
Low Cost ◽  
Carbon Aerogel ◽  
Co Doped
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