Co2FeGe Heusler Alloy Nanoparticle Catalysts for Propyne Hydrogenation and Ammonia Decomposition

被引：3

作者：

Kojima, Takayuki ^{[1
]}

Nakaya, Yuki ^{[2
]}

Tate, Souta ^{[1
]}

Kameoka, Satoshi ^{[3
]}

Furukawa, Shinya ^{[2
,4
]}

机构：

[1] Shinshu Univ, Fac Text Sci & Technol, Div Chem & Mat, 3-15-1 Tokida, Ueda, Nagano 3868567, Japan

[2] Hokkaido Univ, Inst Catalysis, N21,W10, Sapporo 0010021, Japan

[3] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, 2-1-1 Katahira,Aoba Ku, Sendai 9808577, Japan

[4] Osaka Univ, Grad Sch Engn, Div Appl Chem, Suita, Japan

来源：

CHEMISTRYOPEN | 2023年 / 12卷 / 11期

关键词：

intermetallic catalyst; intermetallic compound; Heusler alloy; Heusler compound; SHAPE; SIZE;

D O I：

10.1002/open.202300131

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Heusler alloys (X(2)YZ) can be a candidate for new catalysts as well as other intermetallic compounds. We previously found good catalytic properties of Co2FeGe for selective hydrogenation of alkynes and developed nanoparticles of Co2FeGe supported on SiO2. However, the average diameter of the nanoparticles was 23 nm, which is not small enough compared to those of state-of-the-art nanoparticle catalysts. In this study, we developed SiO2-supported Co2FeGe nanoparticles of <10 nm in diameter. A catalytic test for selective hydrogenation of propyne indicated a partial formation of sites with low selectivity including excess Co atoms. For ammonia decomposition, enhancement of turnover frequency was achieved by reducing the particle size.

引用

页数：5

共 26 条

[1]

Alloyeau D, 2009, NAT MATER, V8, P940, DOI [10.1038/NMAT2574, 10.1038/nmat2574]

[2] Intermetallic compounds in catalysis - a versatile class of materials meets interesting challenges [J].

Armbruester, Marc .

SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, 2020, 21 (01) :303-322

[3] Intermetallics in catalysis: An exciting subset of multimetallic catalysts [J].

Dasgupta, Anish ;

Rioux, Robert M. .

CATALYSIS TODAY, 2019, 330 :2-15

[4] Activity switching of Sn and In species in Heusler alloys for electrochemical CO2 reduction [J].

Iwase, Kazuyuki ;

Kojima, Takayuki ;

Todoroki, Naoto ;

Honma, Itaru .

CHEMICAL COMMUNICATIONS, 2022, 58 (31) :4865-4868

[5] Correlating Particle Size and Shape of Supported Ru/γ-Al2O3 Catalysts with NH3 Decomposition Activity [J].

Karim, Ayman M. ;

Prasad, Vinay ;

Mpourmpakis, Giannis ;

Lonergan, William W. ;

Frenkel, Anatoly I. ;

Chen, Jingguang G. ;

Vlachos, Dionisios G. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (34) :12230-12239

[6] Porous intermetallic Ni2XAl (X = Ti or Zr) nanoparticles prepared from oxide precursors [J].

Kobayashi, Yasukazu ;

Tada, Shohei ;

Kikuchi, Ryuji .

NANOSCALE ADVANCES, 2021, 3 (07) :1901-1905

[7] Synthesis of Co2FeGe Heusler alloy nanoparticles and catalysis for selective hydrogenation of propyne [J].

Kojima, Takayuki ;

Nakaya, Yuki ;

Ham, Hyungwon ;

Kameoka, Satoshi ;

Furukawa, Shinya .

RSC ADVANCES, 2021, 11 (29) :18074-18079

[8] Durability and activity of Co2YZ (Y = Mn or Fe, Z = Ga or Ge) Heusler alloy catalysts for dehydrogenation of 2-propanol [J].

Kojima, Takayuki ;

Koganezaki, Takuya ;

Fujii, Shinpei ;

Kameoka, Satoshi ;

Tsai, An-Pang .

CATALYSIS SCIENCE & TECHNOLOGY, 2021, 11 (14) :4741-4748

[9] Screening of Ternary Intermetallic Catalysts Is Possible Using Metallurgical Synthesis: Demonstration on Heusler Alloys [J].

Kojima, Takayuki ;

Kameoka, Satoshi ;

Tsai, An-Pang .

KONA POWDER AND PARTICLE JOURNAL, 2021, 38 (38) :110-121

[10] Catalytic Properties of Heusler Alloys for Steam Reforming of Methanol [J].

Kojima, Takayuki ;

Kameoka, Satoshi ;

Tsai, An-Pang .

ACS OMEGA, 2019, 4 (26) :21666-21674

← 1 2 3 →