巻号一覧
1980 巻 (1980)
- 103 号 p. 143-
- 102 号 p. 101-
- 101 号 p. 49-
- 100 号 p. 3-
1980 巻, 102 号
選択された号の論文の5件中1～5を表示しています
- |<
- <
- 1
- >
- >|
-
阿久沢 昇, 高橋 洋一1980 年 1980 巻 102 号 p. 101-105
発行日: 1980/07/20
公開日: 2010/06/28
ジャーナル フリーBarium-graphite intercalation compound was synthesized by heat treatment of mixed powder of barium metal and graphite.X-ray analysis showed that the reaction product was composed of 1st stage compound and unreacted graphite.The compounds with higher stages than the 1st were not formed, even if the mixing ratio of Ba/C was changed from 1/8 to 1/24.The 1st stage compound was found to be stable up to 860°C in vacuo; the decomposition to higher stage compounds or the formation of carbide were not observed.The identity period of the 1st stage compound was 5.28Å, in good agreement with the value reported.
By introducing liq.NH3 on the mixture of barium and graphite and succeeding heat treatment, 1st and 2nd stage Ba-NH3-C intercalation compounds were formed.The identity periods of these compounds were 6.31Å and 9.78Å, respectively, in good agreement with those reported by Rudorffet al.By mixing the 2nd stage ternary compound with metallic barium, compressing, and heating at 600°C for several hours, a new intercalation compound was formed.The identity period of this compound was 10.66Å.Although this compound was not isolated, chemical analysis of the mixture of this compound with the known ternary intercalation compounds showed that the Ba/NH3 ratio of this new compound was very high, at least 3.抄録全体を表示PDF形式でダウンロード (622K) -
山辺 潔, 高橋 浩1980 年 1980 巻 102 号 p. 106-115
発行日: 1980/07/20
公開日: 2010/06/28
ジャーナル フリーThe surface oxygen complexes on activated carbons were investigated by using thermal desorption mass spectrometry and thermal gravimetry.
Pittsburgh activated carbon (Calgon Co.) was used as an original sample.The sample was outgassed at 1000°C for 2 hours and then oxidized with 160 torr of O2 over the temperature range from 0° to 300°C for 1 hour.An original sample was also reduced with 400 torr of H2 at 1000°C after outgassing at the same temperature.
Thermal desorption was carried out on these samples up to 1000°C at a heating rate of 4°C/min.in vacuum.
The nature of the surface oxygen on these activated carbons was discussed on the basis of the mass spectrometric analysis of the desorbed gases and the thermal gravimetric analysis of the samples.
It became clear that most of the surface oxygen complexes on the original sample consisted of hydroxylic groups and.those on the oxidized samples consisted mainly of anhydrous oxide groups.
The desorbed amount of oxygen of the oxidized sample increased with elevating the oxidation temperature.On the other hand, that of the reduced sample decreased to about 1/7 to 1/8 of that of the original sample.抄録全体を表示PDF形式でダウンロード (1290K) -
Asao Oya, Masayuki Akiyama, Sugio Otani1980 年 1980 巻 102 号 p. 116-117
発行日: 1980/07/20
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (2809K) -
大谷 朝男1980 年 1980 巻 102 号 p. 118-131
発行日: 1980/07/20
公開日: 2011/03/01
ジャーナル フリーPDF形式でダウンロード (12197K) -
塩田 一路1980 年 1980 巻 102 号 p. 132-138
発行日: 1980/07/20
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (5040K)
- |<
- <
- 1
- >
- >|