title: Metal-organic framework templated synthesis of ultrathin, well-aligned metallic nanowires.
abstract: With well-defined porous structures and dimensions, metal-organic frameworks (MOFs) can function as versatile templates for the growth of metallic nanostructures with precisely controlled shapes and sizes. Using MOFs as templates, metallic nanostructures can be grown without the need of bulky surfactants and thus preserve their intrinsic surface. Additionally, the high surface area of MOFs can also ensure that the surface of the template metallic nanostructures is readily accessible, which is critical for the proper function of catalysts or sensors. The hybrid metal@MOF structures have been demonstrated to exhibit useful properties not found in either component separately. Here we report the growth of ultrafine metallic nanowires inside one-dimensional MOF pores with well-controlled shape and size. Our study shows that solvent selection plays an important role in controlling precursor loading and the reduction rate inside the MOF pores for the formation of the nanowires. The growth of the well-aligned, ultrathin nanowires was monitored and characterized by transmission electron microscopy, X-ray diffraction, UV-vis spectroscopy, fluorescence studies, and Brunauer-Emmet-Teller surface area analysis.
authors.affiliation: †Department of Chemistry and Biochemistry, ‡Department of Materials Science and Engineering, and §California Nanosystems Institute, University of California, Los Angeles, Los Angeles, California 90095, United States.
authors.forename: Boris
authors.initials: B
authors.lastname: Volosskiy
authors.affiliation: †Department of Chemistry and Biochemistry, ‡Department of Materials Science and Engineering, and §California Nanosystems Institute, University of California, Los Angeles, Los Angeles, California 90095, United States.
authors.forename: Kenta
authors.initials: K
authors.lastname: Niwa
authors.affiliation: †Department of Chemistry and Biochemistry, ‡Department of Materials Science and Engineering, and §California Nanosystems Institute, University of California, Los Angeles, Los Angeles, California 90095, United States.
authors.forename: Yu
authors.initials: Y
authors.lastname: Chen
authors.affiliation: †Department of Chemistry and Biochemistry, ‡Department of Materials Science and Engineering, and §California Nanosystems Institute, University of California, Los Angeles, Los Angeles, California 90095, United States.
authors.forename: Zipeng
authors.initials: Z
authors.lastname: Zhao
authors.affiliation: †Department of Chemistry and Biochemistry, ‡Department of Materials Science and Engineering, and §California Nanosystems Institute, University of California, Los Angeles, Los Angeles, California 90095, United States.
authors.forename: Nathan O
authors.initials: NO
authors.lastname: Weiss
authors.affiliation: †Department of Chemistry and Biochemistry, ‡Department of Materials Science and Engineering, and §California Nanosystems Institute, University of California, Los Angeles, Los Angeles, California 90095, United States.
authors.forename: Xing
authors.initials: X
authors.lastname: Zhong
authors.affiliation: †Department of Chemistry and Biochemistry, ‡Department of Materials Science and Engineering, and §California Nanosystems Institute, University of California, Los Angeles, Los Angeles, California 90095, United States.
authors.forename: Mengning
authors.initials: M
authors.lastname: Ding
authors.affiliation: †Department of Chemistry and Biochemistry, ‡Department of Materials Science and Engineering, and §California Nanosystems Institute, University of California, Los Angeles, Los Angeles, California 90095, United States.
authors.forename: Chain
authors.initials: C
authors.lastname: Lee
authors.affiliation: †Department of Chemistry and Biochemistry, ‡Department of Materials Science and Engineering, and §California Nanosystems Institute, University of California, Los Angeles, Los Angeles, California 90095, United States.
authors.forename: Yu
authors.initials: Y
authors.lastname: Huang
authors.affiliation: †Department of Chemistry and Biochemistry, ‡Department of Materials Science and Engineering, and §California Nanosystems Institute, University of California, Los Angeles, Los Angeles, California 90095, United States.
authors.forename: Xiangfeng
authors.initials: X
authors.lastname: Duan
keywords: host−guest systems; metal−organic frameworks; nanoparticles; nanowires