Novel synthesis, characterization and magnetic properties of nano-structured γ-Mo2N and γ-Co0.25Mo1.75N nitrides

被引：2

作者：

Mishra, Pragnya P. ^{[1
]}

Panda, Rabi N. ^{[1
]}

机构：

[1] Birla Inst Technol & Sci, Dept Chem, Goa Campus, Zuari Nagar 403726, Goa, India

来源：

MATERIALS RESEARCH BULLETIN | 2017年 / 86卷

关键词：

Nitride; Chemical synthesis; Magnetic properties; X-ray diffraction; Transmission electron microscopy (TEM); AREA MOLYBDENUM NITRIDE; BOROHYDRIDE REDUCTION; NI; FE; NANOPARTICLES; EPSILON-FE3N; ALPHA-MOO3; ROUTE; PHASE; CO;

D O I：

10.1016/j.materresbull.2016.10.022

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Novel synthesis of nano-structured and porous gamma-Mo2N and gamma-Co0.25Mo1.75N materials have been successfully achieved. The methodologies involve (i) the reaction of metal ions with hydrazine and borohydride resulting MoO3 based procursors and (ii) their subsequent nitridation using NH3(g) at 700 degrees C. gamma-Mo2N and gamma-Co0.25Mo1.75N materials crystallize in fcc structure with lattice parameters, 'a' =4.193 (+/- 5) angstrom and 4.198 (+/- 2) angstrom, respectively. TEM and XRD studies confirm nano-crystalline nature of gamma-Mo2N and gamma-Co0.25Mo1.75N nitrides having TEM particle sizes of 5 and 12 nm and crystallite sizes of 6 and 11 nm, respectively. HRTEM study confirms lattice stacking and porous structures. BET surface area study indicates high and moderate surface areas for gamma-Mo2N and gamma-Co0.25Mo1.75N nitride materials, i.e. 53 and 12 m(2)/g, respectively which confirm mesoporous behavior. M vs H plots of gamma-Mo2N and gamma-Co0.25Mo1.75N materials show weak ferromagnetism having coercivities values of 2838 and 296 Oe, respectively. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：241 / 247

页数：7

共 39 条

[1] Chemistry of interstitial molybdenum ternary nitrides MnMo3N (M = Fe, Co, n = 3; M = Ni, n = 2) [J].

Alconchel, S ;

Sapina, F ;

Beltran, D ;

Beltran, A .

JOURNAL OF MATERIALS CHEMISTRY, 1998, 8 (08) :1901-1909

[2] High Surface Area Molybdenum Nitride Support for Fuel Cell Electrodes [J].

Blackmore, K. J. ;

Elbaz, L. ;

Bauer, E. ;

Brosha, E. L. ;

More, K. ;

McCleskey, T. M. ;

Burrell, A. K. .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2011, 158 (10) :B1255-B1259

[3] Molybdenum Nitrides as Oxygen Reduction Reaction Catalysts: Structural and Electrochemical Studies [J].

Cao, Bingfei ;

Neuefeind, Joerg C. ;

Adzic, Radoslav R. ;

Khalifah, Peter G. .

INORGANIC CHEMISTRY, 2015, 54 (05) :2128-2136

[4] PHASE RELATIONS IN REFRACTORY METAL-OXYGEN SYSTEMS [J].

CHANG, LLY ;

PHILLIPS, B .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1969, 52 (10) :527-&

[5] Molybdenum nitride nanoparticles - High-resolution transmission electron microscopy study [J].

Chaudhuri, J. ;

Nyakiti, L. ;

Lee, R. ;

Ma, Y. ;

Li, P. ;

Cui, Q. L. ;

Shen, L. H. .

MATERIALS LETTERS, 2007, 61 (26) :4763-4765

[6] The Synthesis of α-MoO3 by Ethylene Glycol [J].

Chiang, Tzu Hsuan ;

Yeh, Hung Che .

MATERIALS, 2013, 6 (10) :4609-4625

[7]

Dighore NR., 2014, INT J ENG RES APPL, V4, P135

[8] Sodium borohydride reduction of aqueous iron-zirconium solutions:: chemical routes to amorphous and nanocrystalline Fe-Zr-B alloys [J].

Forster, GD ;

Barquín, LF ;

Bilsborrow, RL ;

Pankhurst, QA ;

Parkin, IP ;

Steer, WA .

JOURNAL OF MATERIALS CHEMISTRY, 1999, 9 (10) :2537-2544

[9] Structural, electrical and magnetic studies of nanocrystalline δ-MoN and γ-Mo2N [J].

Gajbhiye, NS ;

Ningthoujam, RS .

SECOND SEEHEIM CONFERENCE ON MAGNETISM, PROCEEDINGS, 2004, :3449-3454

[10] Nanoparticles of superconducting γ-Mo2N and δ-MoN [J].

Gomathi, A. ;

Sundaresan, A. ;

Rao, C. N. R. .

JOURNAL OF SOLID STATE CHEMISTRY, 2007, 180 (01) :291-295

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