Summary of articles on porous carbon materials prepared by biomass

Biomass is rich in sources, diverse in varieties, and low in cost. Porous carbon materials prepared from biomass have excellent structural characteristics, such as high porosity, low surface area, eco-friendliness, etc., which has attracted more and more attention.

01

Professor Li Xiaoyan’s team at Tsinghua University reported the porous carbon electrode material prepared from Aspergillus niger as raw material. The research result is “Fungal hypha-derived freestanding porous carbon pad as a hig h-capacity electrode for water desalination in membrane capacitive deionization” was published in Chemical Engin eering Journal.
This work proposes an independent carbon-based porous electrode with fast electron transfer rate and effective ion diffusion characteristics for seawater desalination. Here, the mycelium extracted from Aspergillus niger is used as a precursor. After carbonization and activation, the porous structure of the fungal mycelium pad is preserved, forming an independent fungal mycelium activated carbon pad (FhACPad) electrode. FhACPad with graded porous structure has a high desalination capacity of 35.6 mgNaCl/g.

Article link:https://doi.org/10.1016/j.cej.2021.133781

Source: Chemical Engineering Journal

02

Professor Wang Peng’s team of Jiangxi Agricultural University reported a porous carbon electrocatalyst prepared from camphor leaves. The research result is “Nano-ZnS decorated hierarchically porous carbon electrocata” lyst with multiple enzyme-like activities as a nanozyme sensing platform for simultaneous detection of dopamine, uric acid, guanine, and adenine was published in the journal Nanoscale.
This work uses camphor leaf as the carbon source, zinc chloride as the zinc source and activator, sulfuric acid as the sulfur source, and silicone as the hard template. It successfully synthesizes multi-stage porous carbon (ZSHPC) electric catalyst modified by nano ZnS modified by multi-enzyme activity by in-sisis place hydrothermal synthesis. As a nano-enzyme sensing platform, it is important for four The biological small molecules are detected by differential voltammete, including dopamine (DA), uric acid (UA), guanine (G) and adenine (A). Multiple target molecules are detected at the same time in the linear range of 0.3-500 μM. The detection limits of DA, UA, G and A are 0.12 μM and 0 respectively. .26 μM, 0.07 μM and 0.075 μM.

Article link:https://doi.org/10.1039/D1NR06017A

Source: Nanoscale

03

The Hosein Banna Motejadded Emrooz team of Iran University of Science and Technology reported on graded porous carbon materials prepared from walnut shells. The research result is “Biomass derived hierarchical poro” us carbon for high-performance O2/N2 adsorption; a new green self-activation approach” published in RSC Adv The journal “ances”.
This work proposes a synthesis method of a new green porous carbon adsorbent based on self-activation technology. The adsorbent was successfully synthesized by one-step carbonization method. Under the synthesis condition of 1000 ℃, the specific surface area is as high as 2042.4 (m2g^-1) and the pore volume is about 0.499 (m3g^-1). At 298 K and 9.5 bar pressure, the separation ability of O2/N2 of porous carbon materials was studied, and the sips isotherm of the highest adsorption potential was 2.94 (mmol g^-1) and 2.67 (mmol g^-1) respectively.

Article link:https://doi.org/10.1039/D1RA06781H

Source: RSC Advances

04

Zhao Yige’s team of associate professors at Zhengzhou University reported that nitrogen-doped porous carbon materials made from watermelon peel. The research results are “Watermelon Peel-Derived Nitrogen-Doped Porous Carbon as a Su Period Oxygen Reduction Electrocatalyst for Zn−air Batteries was published in the journal ChemElectroChem.
This work designs a nitrogen-doped layered porous carbon catalyst (N-WPAC) derived from watermelon peel through a simple and scalable method. N-WPAC shows excellent ORR performance, which is mainly due to its layered porous carbon structure and rich defects, which is conducive to fully exposing the active site and accelerating the mass transfer process.

Article link:https://doi.org/10.1002/celc.202101339

Source of information: ChemElectroChem

05

The team of Associate Professor Min Shixiong of Northern University for Nationalities reported the porous carbon film prepared from apricot mushrooms. The research result is “Ultrahigh-areal-capacitance aqueous supercapacitors enabled by soft biomass-derived porous carbon membrane” was published in Int. J. Energy Res. Journals.
This work uses KOH as an activator to directly carbonize apricot eryngii (PE) and prepared a porous carbon film (PECM). The prepared PECM has a classified nanostructure with high porosity, large specific surface area and good electrolyte wettability, which not only provides a large available active area for the interface adsorption of electrolyte ions, but also provides a rapid diffusion path for electrolyte ions.

Article link: https://doi.org/10.1002/er.7472

Source: International Journal of Energy Research

06

Zheng Shaona’s team at Dongguan Institute of Technology reported the porous carbon material prepared from flowers and grass leaves as raw materials. The research result is “Self-nitrogen-doped porous carbon prepared via pyrolysis of g rass-blade without additive for oxygen reduction reaction was published in the journal Diamond and Related Materials.
This work uses direct pyrolysis to prepare nitrogen-doped porous carbon materials. SL-C-800 has the characteristics of large specific surface area, rich pores, rich nitrogen doping, and long-term stability in alkaline media. It can be used as an oxygen reduction (ORR) catalyst, and rich mesopores are conducive to O2 diffusion.

Article link:https://doi.org/10.1016/j.diamond.2021.108742

Source: Diamond and Related Materials

07

Indian Institute of Science and Innovation Dr. Priyanka H. The Maheshwari team reported on the porous carbon material prepared from pineapple peel. The research result is “Electrolytic Study of Pineapple Peel Derived Porous Carbon fo r All-Solid-State Supercapacitors was published in the journal “ChemistrySelect”.
This work uses hydrothermal pre-carbonization and KOH activation methods to prepare porous carbon nanochips derived from pineapple peel. Its high SSA and graded pore size distribution make it a suitable supercapacitor electrode material. The PP-800 electrode material obtained under the activation temperature of 800 ℃ has the highest specific capacitance in the 1 M H2SO4 electrolyte, which is 368.8 F/g. A symmetrical solid supercapacitor is prepared by using PP-800 electrode and PVA gel electrolyte. After 10,000 ultra-long charging and discharging cycles, the PP-800 device has a good cycle life and a capacitance retention rate of 83%.

Article link:https://doi.org/10.1002/slct.202103034

Source: ChemistrySelect

08

Geng Jianxin’s research team at Beijing University of Chemical Technology reported porous carbon materials made from agarose. The research result is “Agarose-Based Hierarchical Porous Carbons Prepared with Gas-G enerating Activators and Used in High-Power Density Supercapacitors was published in the journal Energy & Fuels.
This work proposes a new method to convert agarose into a porous carbon material with adjustable porous structure and high electrochemical properties. Agarose is a naturally occurring biomass that only needs to be heated to synthesize a gel composed of agarose and potassium oxalate (K2C2O4). The porous carbon material can be used as the electrode material of the supercapacitor, with a specific capacitance of 166.0 F g^-1at 0.125 A g^-1. The pore structure and electrochemical properties of the material can be adjusted by changing the addition of K2C2O4.

Article link:https://doi.org/10.1021/acs.energyfuels.1c02875

Source: Energy & Fuels

09

Associate Professor Tian Yuhong’s team of Xi’an University of Architecture and Technology reported the porous carbon material prepared from yeast. The research result is “Yeast-Based Porous Carbon with Superior Electrochemical Pr operties was published in the journal ACS Omega.
This work uses yeast as the carbon source and Na2SiO3as the activator to prepare honeycomb porous carbon materials with high surface area, which can be used as supercapacitor carbon electrode materials. Yeast is directly mixed and ground with Na2SiO3without any solvent, simple operation, and has the characteristics of large-scale application. The prepared porous carbon material has a specific capacity of 313 F/g when the density is 0.5 A/g in 6 M KOH.

Article link:https://doi.org/10.1021/acsomega.1c05278

Source: ACS Omega

10

The team of Professor Liang Jicai and Associate Professor Liang Ce of Jilin University reported on porous carbon materials prepared from buckwheat shells. The research results are “Natural biomass-derived porous carbons from buckwheat hu lls used as anode for lithium-ion batteries was published in the journal Diamond and Related Materials.
The biomass porous carbon material reported in this work can be used as the anode material of lithium-ion batteries. After cycling 150 times under the condition of 0.2 C, the specific capacity is 715.0 mAh g^-1. Under 5C conditions, after 500 cycles, the specific capacity is 444.8 mAh g^-1. The porous structure of buckwheat shell porous carbon materials contributes to the rapid migration of lithium ions in electrolytes and electrode materials. As an anode material, the waste biomass buckwheat shell overcomes the problem of low graphite anode capacity and provides a new choice for the preparation of high-performance lithium-ion battery anode material.