Preparation, structure and reduction of graphite intercalation compounds with hexachloroplatinic acid

被引：28

作者：

Dunaev, A. V. ^{[1
]}

Arkhanyelsky, I. V. ^{[1
]}

Zubavichus, Ya. V. ^{[2
]}

Avdeev, V. V. ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Chem, Chair Chem Technol & New Mat, Moscow 119992, Russia

[2] Russian Res Ctr, Kurchatov Inst, Moscow 123182, Russia

来源：

CARBON | 2008年 / 46卷 / 05期

关键词：

D O I：

10.1016/j.carbon.2008.02.003

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Electrochemical oxidation and exchange intercalation, have been used for the production of graphite intercalation compounds (GICs) with hexachloroplatinic acid. Ternary GICs H2PtCl6-HNO3-graphite and H2PtCl6-H2SO4-graphite have been synthesized by the incomplete exchange reaction between the parent HNO3 and H2SO4 GICs and hexachloroplatinic acid. Irrespective of the precursor GIC stage, stage-2 GIC with H2PtCl6 has been obtained. Attempted synthesis of the single-phase stage-2 GIC via the electrochemical oxidation of graphite in H2PtCl6 solutions failed since mixtures of the target products with pure graphite have resulted in all cases. The structure and properties of the samples obtained have been examined by XRD, SEM, TG-DTG, TG coupled with FTIR and EXAFS-XANES. GIC samples were preheated to 200 degrees C to produce exfoliation (caused by deintercalation of nitric acid), and reduced either with boiling 5% aqueous formaldehyde or hydrogen. This approach gives rise to exfoliated graphite material with platinum nanoclusters distributed on the surface. In contrast to the most other work particles with open surfaces were obtained. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：788 / 795

页数：8

共 27 条

[1] CHARACTERIZATION AND CATALYTIC BEHAVIOR OF GRAPHITE LAMELLAR COMPOUNDS OF IRON, NICKEL AND COBALT [J].

AIKA, K ;

YAMAGUCHI, T ;

ONISHI, T .

APPLIED CATALYSIS, 1986, 23 (01) :129-137

[2]

ANKUNDINOV AL, 1998, PHYS REV B, V58, P5102

[3] Synthesis of ternary intercalation compounds in the graphite-HNO3-R (R = H2SO4, H3PO4, CH3COOH) systems [J].

Avdeev, VV ;

Sorokina, NE ;

Maksimova, NV ;

Martynov, IY ;

Sezemin, AV .

INORGANIC MATERIALS, 2001, 37 (04) :366-371

[4] Electrochemical synthesis of iron supported on exfoliated graphite [J].

Beguin, F ;

Frackowiak, E .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1996, 57 (6-8) :841-847

[5] REDUCTION OF GRAPHITE-METAL CHLORIDE INTERCALATION COMPOUNDS [J].

BEWER, G ;

WICHMANN, N ;

BOEHM, HP .

MATERIALS SCIENCE AND ENGINEERING, 1977, 31 :73-76

[6] GRAPHITE HEXACHLOROPLATINATE(IV) AND PLATINUM(IV) CHLORIDE GRAPHITE - TRANSITION OF A GRAPHITE SALT INTO A METAL CHLORIDE-GRAPHITE COMPOUND [J].

BOECK, A ;

RUDORFF, W .

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1972, 392 (03) :236-&

[7]

Enoki T., 2003, GRAPHITE INTERCALATI, P9

[8] THERMODYNAMIC DATA FOR ANODIC SOLID-STATE GRAPHITE OXIDATION-PRODUCTS IN 71-PERCENT PERCHLORIC-ACID [J].

JIANG, J .

CARBON, 1993, 31 (05) :663-666

[9] ON THE REDUCTION OF GRAPHITE-INTERCALATION COMPOUNDS WITH IRON TRICHLORIDE [J].

KALUCKI, K ;

MORAWSKI, AW .

REACTIVITY OF SOLIDS, 1988, 6 (01) :29-38

[10] Electrochemical synthesis of sulfate graphite intercalation compounds with different electrolyte concentrations [J].

Kang, FY ;

Zhang, TY ;

Leng, Y .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1996, 57 (6-8) :883-888

← 1 2 3 →