Highly ordered mesoporous carbon/iron porphyrin nanoreactor for the electrochemical reduction of CO2

2020 ◽  
Vol 8 (30) ◽  
pp. 14966-14974 ◽  
Author(s):  
Jaecheol Choi ◽  
Jeonghun Kim ◽  
Pawel Wagner ◽  
Jongbeom Na ◽  
Gordon G. Wallace ◽  
...  
Keyword(s):  
Electrochemical Reduction ◽  
Surface Area ◽  
Mesoporous Carbon ◽  
Ordered Mesoporous Carbon ◽  
Iron Porphyrin ◽  
Faradaic Efficiency ◽  
Ordered Mesoporous ◽  
Conductive Substrate ◽  
Carbon Iron ◽  
Reduction Of Co2

A highly ordered mesoporous carbon having a large surface area is utilized as a conductive substrate to immobilize iron porphyrin catalysts for electrochemical CO2 reduction, resulting in the selective conversion of aqueous CO2 into CO with 92.1% faradaic efficiency.

scholarly journals Enhancement in Graphitization of Ordered Mesoporous Carbon by Assistance of Soybean Oil Surfactant

2020 ◽  
Vol 36 (3) ◽  
Author(s):  
Le Thi Thu Hang ◽  
Hoang Thi Bich Thuy
Keyword(s):  
Soybean Oil ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Pore Volume ◽  
Mesoporous Carbon ◽  
Mesoporous Structure ◽  
Ordered Mesoporous Carbon ◽  
Graphitization Degree ◽  
Ordered Mesoporous

In this work, highly ordered mesoporous graphitic carbon (G-CMK3) has been prepared successfully by a nano-casting method using sucrose as carbon source, mesoporous silica as hard template, and soybean oil as surfactant. In the absence of soybean oil surfactant, the synthesized ordered mesoporous carbon material, CMK-3, revealed a low graphitization degree with a specific surface area of 1049.1 m2/g and a high pore volume of 1.172 cm3/g.  However, with the assistance of soybean oil surfactant, the graphitization degree was improved significantly, which was confirmed by the decrease in the ID/IG intensity ratio of the D (disordered or amorphous structure) and G (graphitic structure) peaks from 0.98 to 0.83. After the synthesis in the presence of soybean oil, G-CMK3 carbon maintained the integrity of the mesoporous structure albeit with a slight decrease in its specific surface area (845.2 m2/g) as well as pore volume (0.858 cm3/g).

High surface area black TiO2 templated from ordered mesoporous carbon for solar driven hydrogen evolution

2018 ◽  
Vol 268 ◽  
pp. 162-169 ◽  
Author(s):  
Yan Xiong ◽  
Dong Gu ◽  
Xiaohui Deng ◽  
Harun Tüysüz ◽  
Maurice van Gastel ◽  
...  
Keyword(s):  
Surface Area ◽  
Hydrogen Evolution ◽  
Mesoporous Carbon ◽  
High Surface ◽  
High Surface Area ◽  
Ordered Mesoporous Carbon ◽  
Ordered Mesoporous ◽  
Black Tio2

Synthesis, Characterization and Physiochemical Properties of Platinum Supported on Mesoporous Carbon

2011 ◽  
Author(s):  
Salam J. J. Titinchi ◽  
Waheed Saban ◽  
Leslie Petrik ◽  
Hanna S. Abbo
Keyword(s):  
Surface Area ◽  
Pore Volume ◽  
Mesoporous Carbon ◽  
Chemical Vapour ◽  
Nitrogen Adsorption ◽  
Ordered Mesoporous Carbon ◽  
Pt Catalyst ◽  
X Ray Diffraction ◽  
X Ray ◽  
Ordered Mesoporous

Ordered mesoporous carbon (OMC) has been prepared by impregnating the pores of the silica template (SBA-15) with liquid petroleum gas (LPG) or sucrose. The desired support (OMC) was obtained after dissolution with NaOH. Platinum nanoparticles were dispersed on ordered mesoporous carbons using Chemical Vapour Deposition (CVD) method and Pt(acac)2 as metal source. The resulting ordered mesoporous carbon possess a large surface area with high microporosity, and a controlled pore size distribution, High-quality carbon replicas of SBA-15 show an X-ray diffraction peak at low angle, which indicates that the structural periodicity of the (111) planes has been maintained. Their pore volume and specific surface area are high and the pore volume is almost entirely microporous. The synthesized Pt/OMC was characterized by powder X-Ray diffraction, HR-TEM, HR-SEM, EDS, thermogravimetric analysis, and nitrogen adsorption. The performance of Pt catalyst supported OMC was evaluated by electrochemical studies, which shows almost similar activity to the commercial catalyst.

scholarly journals Electrochemical reduction of europium(iii) using tetra-n-octyl diglycolamide functionalized ordered mesoporous carbon microelectrodes

2020 ◽  
Vol 8 (20) ◽  
pp. 6689-6700 ◽  
Author(s):  
Erin R. Bertelsen ◽  
Nolan C. Kovach ◽  
Brian G. Trewyn ◽  
Mark R. Antonio ◽  
Jenifer C. Shafer
Keyword(s):  
Electrochemical Reduction ◽  
Mesoporous Carbon ◽  
Ordered Mesoporous Carbon ◽  
Ordered Mesoporous ◽  
Cavity Microelectrode ◽  
Electron Reduction ◽  
The One

This work investigates the one-electron reduction of Eu(iii) to Eu(ii) by ordered mesoporous carbon (OMC), with and without tetra-n-octyl diglycolamide (TODGA) functionalization, in cavity microelectrode (CME) systems.

Sign in / Sign up

Export Citation Format

Share Document