抄録
Extraction of M elements from MAX phases results in “AX” compounds in contrast to the well-defined two-dimensional (2D) materials known as MXene, which are prepared by the selective etching of A elements. Despite the extensive studies on MXene from both experimental and computational aspects, the nature of the AX compounds still remains elusive, because the electrochemical etching of M atoms from MAX significantly spoils the crystal structure, predominantly resulting in amorphous AX products. Here, we demonstrate the characterization of an S/C complex prepared by the electrochemical etching of Ti 2 SC. The spark plasma sintering (SPS) technique affords a well-sintered Ti 2 SC disk with high purity, which can be directly utilized as a binder-free Ti 2 SC electrode. It is found that the electrochemically extracted Ti elements in NH 4 F electrolyte are partially crystallized into the monoclinic titanium oxynitride, TiO 0.34 N 0.74 . The formed amorphous S/C compound is classified into three components: acetone-soluble volatiles including elemental sulfur, acetone-insoluble volatiles, and non-volatile species carbonizable into S-doped carbon.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | 2312-2317 |
| ページ数 | 6 |
| ジャーナル | European Journal of Inorganic Chemistry |
| 巻 | 2019 |
| 発行部数 | 17 |
| DOI | |
| 出版物ステータス | 出版済み - 5 8 2019 |
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All Science Journal Classification (ASJC) codes
- Inorganic Chemistry
これを引用
Characterization of an AX Compound Derived from Ti 2 SC MAX Phase . / Hasegawa, Joji; Kawahara, Kei; Shima, Kazunari; Inada, Miki; Enomoto, Naoya; Hayashi, Katsuro.
：: European Journal of Inorganic Chemistry, 巻 2019, 番号 17, 08.05.2019, p. 2312-2317.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Characterization of an AX Compound Derived from Ti 2 SC MAX Phase
AU - Hasegawa, Joji
AU - Kawahara, Kei
AU - Shima, Kazunari
AU - Inada, Miki
AU - Enomoto, Naoya
AU - Hayashi, Katsuro
PY - 2019/5/8
Y1 - 2019/5/8
N2 - Extraction of M elements from MAX phases results in “AX” compounds in contrast to the well-defined two-dimensional (2D) materials known as MXene, which are prepared by the selective etching of A elements. Despite the extensive studies on MXene from both experimental and computational aspects, the nature of the AX compounds still remains elusive, because the electrochemical etching of M atoms from MAX significantly spoils the crystal structure, predominantly resulting in amorphous AX products. Here, we demonstrate the characterization of an S/C complex prepared by the electrochemical etching of Ti 2 SC. The spark plasma sintering (SPS) technique affords a well-sintered Ti 2 SC disk with high purity, which can be directly utilized as a binder-free Ti 2 SC electrode. It is found that the electrochemically extracted Ti elements in NH 4 F electrolyte are partially crystallized into the monoclinic titanium oxynitride, TiO 0.34 N 0.74 . The formed amorphous S/C compound is classified into three components: acetone-soluble volatiles including elemental sulfur, acetone-insoluble volatiles, and non-volatile species carbonizable into S-doped carbon.
AB - Extraction of M elements from MAX phases results in “AX” compounds in contrast to the well-defined two-dimensional (2D) materials known as MXene, which are prepared by the selective etching of A elements. Despite the extensive studies on MXene from both experimental and computational aspects, the nature of the AX compounds still remains elusive, because the electrochemical etching of M atoms from MAX significantly spoils the crystal structure, predominantly resulting in amorphous AX products. Here, we demonstrate the characterization of an S/C complex prepared by the electrochemical etching of Ti 2 SC. The spark plasma sintering (SPS) technique affords a well-sintered Ti 2 SC disk with high purity, which can be directly utilized as a binder-free Ti 2 SC electrode. It is found that the electrochemically extracted Ti elements in NH 4 F electrolyte are partially crystallized into the monoclinic titanium oxynitride, TiO 0.34 N 0.74 . The formed amorphous S/C compound is classified into three components: acetone-soluble volatiles including elemental sulfur, acetone-insoluble volatiles, and non-volatile species carbonizable into S-doped carbon.
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U2 - 10.1002/ejic.201900311
DO - 10.1002/ejic.201900311
M3 - Article
VL - 2019
SP - 2312
EP - 2317
JO - European Journal of Inorganic Chemistry
JF - European Journal of Inorganic Chemistry
SN - 1434-1948
IS - 17
ER -