A quantitative analysis of a trace amount of hydrogen in high temperature heat-treated carbons

Susumu Kashihara; Shoji Otani; Hironori Orikasa; Yasuto Hoshikawa; Jun Ichi Ozaki; Takashi Kyotani

doi:10.1016/j.carbon.2011.12.029

A quantitative analysis of a trace amount of hydrogen in high temperature heat-treated carbons

Susumu Kashihara, Shoji Otani, Hironori Orikasa, Yasuto Hoshikawa, Jun Ichi Ozaki, Takashi Kyotani

Polymer Hybrid Materials Research Center

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

A technique to determine a trace amount of hydrogen in carbon materials heat-treated above 1000 °C was developed. Three types of carbons prepared from poly(furfulyl alcohol), poly(vinyl chloride) and mesophase carbon microbeads were heat-treated at various temperatures ranging from 1000 to 1800 °C. Then they were gasified by O ₂ in a fixed bed flow reactor, and the H ₂O gases formed during the gasification processes were carefully monitored with a Karl Fischer moisture analyzer. As a result, this method makes it possible to determine the hydrogen contents in the carbons down to three places of decimals as a weight percent and can detect even a trace amount of hydrogen as low as 0.002 wt.%. A possible chemical structure of carbon edge sites was also discussed based on the experimentally determined hydrogen contents.

Original language	English
Pages (from-to)	3310-3314
Number of pages	5
Journal	Carbon
Volume	50
Issue number	9
DOIs	https://doi.org/10.1016/j.carbon.2011.12.029
Publication status	Published - 2012 Aug

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)

Access to Document

10.1016/j.carbon.2011.12.029

Fingerprint Dive into the research topics of 'A quantitative analysis of a trace amount of hydrogen in high temperature heat-treated carbons'. Together they form a unique fingerprint.

Cite this

@article{2b5cdd76839c47d89228a2495c5df2aa,

title = "A quantitative analysis of a trace amount of hydrogen in high temperature heat-treated carbons",

abstract = "A technique to determine a trace amount of hydrogen in carbon materials heat-treated above 1000 °C was developed. Three types of carbons prepared from poly(furfulyl alcohol), poly(vinyl chloride) and mesophase carbon microbeads were heat-treated at various temperatures ranging from 1000 to 1800 °C. Then they were gasified by O 2 in a fixed bed flow reactor, and the H 2O gases formed during the gasification processes were carefully monitored with a Karl Fischer moisture analyzer. As a result, this method makes it possible to determine the hydrogen contents in the carbons down to three places of decimals as a weight percent and can detect even a trace amount of hydrogen as low as 0.002 wt.%. A possible chemical structure of carbon edge sites was also discussed based on the experimentally determined hydrogen contents.",

author = "Susumu Kashihara and Shoji Otani and Hironori Orikasa and Yasuto Hoshikawa and Ozaki, {Jun Ichi} and Takashi Kyotani",

year = "2012",

month = aug,

doi = "10.1016/j.carbon.2011.12.029",

language = "English",

volume = "50",

pages = "3310--3314",

journal = "Carbon",

issn = "0008-6223",

publisher = "Elsevier Limited",

number = "9",

}

TY - JOUR

T1 - A quantitative analysis of a trace amount of hydrogen in high temperature heat-treated carbons

AU - Kashihara, Susumu

AU - Otani, Shoji

AU - Orikasa, Hironori

AU - Hoshikawa, Yasuto

AU - Ozaki, Jun Ichi

AU - Kyotani, Takashi

PY - 2012/8

Y1 - 2012/8

N2 - A technique to determine a trace amount of hydrogen in carbon materials heat-treated above 1000 °C was developed. Three types of carbons prepared from poly(furfulyl alcohol), poly(vinyl chloride) and mesophase carbon microbeads were heat-treated at various temperatures ranging from 1000 to 1800 °C. Then they were gasified by O 2 in a fixed bed flow reactor, and the H 2O gases formed during the gasification processes were carefully monitored with a Karl Fischer moisture analyzer. As a result, this method makes it possible to determine the hydrogen contents in the carbons down to three places of decimals as a weight percent and can detect even a trace amount of hydrogen as low as 0.002 wt.%. A possible chemical structure of carbon edge sites was also discussed based on the experimentally determined hydrogen contents.

AB - A technique to determine a trace amount of hydrogen in carbon materials heat-treated above 1000 °C was developed. Three types of carbons prepared from poly(furfulyl alcohol), poly(vinyl chloride) and mesophase carbon microbeads were heat-treated at various temperatures ranging from 1000 to 1800 °C. Then they were gasified by O 2 in a fixed bed flow reactor, and the H 2O gases formed during the gasification processes were carefully monitored with a Karl Fischer moisture analyzer. As a result, this method makes it possible to determine the hydrogen contents in the carbons down to three places of decimals as a weight percent and can detect even a trace amount of hydrogen as low as 0.002 wt.%. A possible chemical structure of carbon edge sites was also discussed based on the experimentally determined hydrogen contents.

UR - http://www.scopus.com/inward/record.url?scp=84860683426&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84860683426&partnerID=8YFLogxK

U2 - 10.1016/j.carbon.2011.12.029

DO - 10.1016/j.carbon.2011.12.029

M3 - Article

AN - SCOPUS:84860683426

VL - 50

SP - 3310

EP - 3314

JO - Carbon

JF - Carbon

SN - 0008-6223

IS - 9

ER -