Silver delafossite nitride, AgTaN2?

被引：17

作者：

Miura, Akira ^{[1
,2
]}

Lowe, Michael ^{[1
]}

Leonard, Brian M. ^{[1
]}

Subban, Chinmayee V. ^{[1
]}

Masubuchi, Yuji ^{[3
]}

Kikkawa, Shinichi ^{[3
]}

Dronskowski, Richard ^{[2
]}

Hennig, Richard G. ^{[4
]}

Abruna, Hector D. ^{[1
]}

DiSalvo, Francis J. ^{[1
]}

机构：

[1] Cornell Univ, Baker Lab, Dept Chem & Chem Biol, Ithaca, NY 14853 USA

[2] Rhein Westfal TH Aachen, Inst Inorgan Chem, D-52074 Aachen, Germany

[3] Hokkaido Univ, Grad Sch Engn, Kita Ku, Sapporo, Hokkaido 0608628, Japan

[4] Cornell Univ, Dept Mat Sci & Engn, Ithaca, NY 14853 USA

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2011年 / 184卷 / 01期

关键词：

Nitride; Delafossite; Topotactic reaction; Exchange reaction; Soft chemistry; THIN-FILMS; CHEMISTRY; OXIDES; GA;

D O I：

10.1016/j.jssc.2010.10.009

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new silver nitride, AgTaN2, was synthesized from NaTaN2 by a cation-exchange reaction, using a AgNO3-NH4NO3 flux at 175 degrees C Its crystal structure type is delafossite (R (3) over barm) with hexagonal lattice parameters of a=3.141(3) angstrom, c=18.81(2) angstrom, in which silver is linearly coordinated to nitrogen. Energy dispersive X-ray analysis and combustion nitrogen/oxygen analysis gave a composition with atomic ratios of Ag:Ta:N:O as 1.0:1.2(1):2.1(1):0.77(4), which is somewhat Ta rich and indicates some oxide formation. The X-ray photoelectron spectroscopy analysis showed a Ta- and O-rich surface and transmission electron microscope observation exhibited aggregates of ca. 4-5 nm-sized particles on the surface, which are probably related to the composition deviation from a AgTaN2. The lattice parameters of stoichiometric AgTaN2 calculated by density functional theory agree with the experimental ones, but the possibility of some oxygen incorporation and/or silver deficiency is not precluded. (C) 2010 Elsevier Inc. All rights reserved.

引用

页码：7 / 11

页数：5

共 30 条

[1] Characterization of thin films produced by the thermal evaporation of silver oxide [J].

Al-Kuhaili, M. F. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2007, 40 (09) :2847-2853

[2]

Bielmann M, 2002, PHYS REV B, V65, DOI 10.1103/PhysRevB.65.235431

[3] O2 ELECTROCATALYSIS ON THIN-FILM METALLIC OXIDE ELECTRODES WITH THE DELAFOSSITE STRUCTURE [J].

CARCIA, PF ;

SHANNON, RD ;

BIERSTEDT, PE ;

FLIPPEN, RB .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1980, 127 (09) :1974-1978

[4] Ternary nitrides: A rapidly growing class of new materials [J].

DiSalvo, FJ ;

Clarke, SJ .

CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, 1996, 1 (02) :241-249

[5]

FRUCHART R, 1967, MATER RES BULL, V2, P1009

[6] Nitride chemistry of the s-block elements [J].

Gregory, DH .

COORDINATION CHEMISTRY REVIEWS, 2001, 215 :301-345

[7]

Hashimoto S., 2006, J. Surf. Anal, V13, P14

[8] (Ca7N4) [Mx] (M = Ag, Ga, In, Tl):: Linear metal chains as guests in a subnitride host [J].

Hoehn, Peter ;

Auffermann, Gudrun ;

Ramlau, Reiner ;

Rosner, Helge ;

Schnelle, Walter ;

Kniep, Ruediger .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (40) :6681-6685

[9] Thermoelectric power of delafossite-derived compounds RCuO2+δ; (R = Y, La, Pr, Nd, Sm, and Eu) [J].

Isawa, K ;

Yaegashi, Y ;

Ogota, S ;

Nagano, M ;

Sudo, S ;

Yamada, K ;

Yamauchi, H .

PHYSICAL REVIEW B, 1998, 57 (13) :7950-7954

[10] Luminescent properties of delafossite-type oxides LaCuO2 and YCuO2 [J].

Jacob, A ;

Parent, C ;

Boutinaud, P ;

LeFlem, G ;

Doumerc, JP ;

Ammar, A ;

Elazhari, M ;

Elaatmani, M .

SOLID STATE COMMUNICATIONS, 1997, 103 (09) :529-532

← 1 2 3 →