A simple method for developing mesoporosity in activated carbon

Hu, Zhonghua; Guo, Huimin; Madapusi, Srinivasan; Ni, Yaming

doi:10.1016/s1383-5866(02)00148-x

Cited by 80 publications

(34 citation statements)

References 11 publications

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“…All the samples displayed type IV isotherms. In addition, the hysteretic loop of the used sample occurred with no bulge while the fresh and regenerated ones occurred with it, indicating that structural properties of the used catalyst were similar to the type H4 hysteretic loop, which was a indicative of highly microporosity with slit-like pores as the characteristic of activated carbon [53]. A pore size distribution of the catalyst was determined using the BJH desorption method too (Fig.…”

Section: Catalyst Characterizationmentioning

confidence: 95%

Study on Alumina-Supported Cobalt–Nickel Oxide Catalyst for Synthesis of Acetonitrile from Ethanol

Cheng

Zhang

et al. 2010

Catal Lett

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A new alumina-supported cobalt-nickel oxide catalyst for the synthesis of acetonitrile from ethanol and ammonia was prepared by coprecipitation-kneading method. The parameters influencing the reaction were studied thoroughly and an optimized process, which is running the reaction at 380°C under atmospheric pressure while keeping the ammonia/alcohol molar ratio of 5 and GHSV of 1,163 h -1 , was obtained. Under the optimized conditions the catalyst reached its best performance when being on stream for 40 h, at which the yield of acetonitrile was 92.6%. Then the selectivity to acetonitrile decreased gradually but the yield of acetonitrile always remained higher than 81% within 720 h. The samples of the fresh and used catalyst were characterized by XRD, XPS, TEM, EDX and N 2 adsorption-desorption analysis. The results revealed that carbon deposition and formation of metal carbides from the active species in the catalytic runs led to the deterioration of the catalyst.

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Section: Catalyst Characterizationmentioning

confidence: 95%

Study on Alumina-Supported Cobalt–Nickel Oxide Catalyst for Synthesis of Acetonitrile from Ethanol

Cheng

Zhang

et al. 2010

Catal Lett

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“…In addition to conventional physical and chemical activation, some other approaches, such as templating, also have the potential to introduce porosity into biochar, although to date no such reports on biochar pore structure tailoring have appeared [46]. Two stage activation processes consisting of chemical activation step followed by physical activation have also been used to further enhance the porosity development and tune the pore structure [47].…”

Section: Pore Structure Tailoringmentioning

confidence: 99%

Characterization, Modification and Application of Biochar for Energy Storage and Catalysis: A Review

Xiu

Shahbazi²,

Li³

2017

Tr Ren Energy

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Biomass can be converted to biofuels and bioproducts via thermochemical processes. Biochar is one of the major products of thermochemical conversion of biomass. The efficient use of biochar is critical to improving the economic viability and environmental sustainability of biomass conversion technologies. Applications of biochar for both agricultural and environmental benefits (e.g. as soil amendment, for inorganic pollutant removal) have been studied and reviewed extensively. However, biochar for energy storage materials and catalytic applications has not been widely reviewed in the recent past. This review aims to present the more significant recent advances in several biochar utilizations such as catalysts and supercapacitors. Discussions on biochar production technologies, chemistry, properties, characteristics, and advanced functionalization techniques are provided. It also points out barriers to achieving improvements in the future.

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“…The use of suitable surfaces, especially activated carbon (AC), to remove hazardous materials through adsorption processes is well-known, carbonaceous materials being effective sorbents for organic and inorganic contaminants [1]. Adsorption of water on carbon surfaces has been intensively studied [2,3], these materials presenting interesting environmental applications as adsorbents in aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

Thermophysical investigations of exfoliated graphite nanoplatelets and active carbon in binary aqueous environments at different temperatures

2014

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Thermophysical investigations in binary liquid mixtures are important for many technological and environmental applications of exfoliated graphite nanostructures. The densities, speeds of sound, and refractive indices for the binary liquid mixture environments of water ? exfoliated graphite nanoplatelets, and water ? activated carbon have been measured versus composition, at different temperatures, at atmospheric pressure. The thermophysical properties such as the acoustic impedance, isentropic compressibility, specific refraction, space-filling factor, and relaxation strength have been evaluated over the composition range up to 100 kg m -3 , based on the experimental data. The absolute average percentage deviations of the calculated thermophysical properties in both systems were computed. The obtained results are discussed and interpreted in terms of molecular interactions and structural changes of these carbon-based nanomaterials.

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A simple method for developing mesoporosity in activated carbon

Cited by 80 publications

References 11 publications

Study on Alumina-Supported Cobalt–Nickel Oxide Catalyst for Synthesis of Acetonitrile from Ethanol

Study on Alumina-Supported Cobalt–Nickel Oxide Catalyst for Synthesis of Acetonitrile from Ethanol

Characterization, Modification and Application of Biochar for Energy Storage and Catalysis: A Review

Thermophysical investigations of exfoliated graphite nanoplatelets and active carbon in binary aqueous environments at different temperatures

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