Search Results - "Varadwaj, Kumar S. K."

Steering Epitaxial Alignment of Au, Pd, and AuPd Nanowire Arrays by Atom Flux Change by Yoo, Youngdong, Seo, Kwanyong, Han, Sol, Varadwaj, Kumar S. K, Kim, Hyun You, Ryu, Ji Hoon, Lee, Hyuck Mo, Ahn, Jae Pyoung, Ihee, Hyotcherl, Kim, Bongsoo

“…We have synthesized epitaxial Au, Pd, and AuPd nanowire arrays in vertical or horizontal alignment on a c-cut sapphire substrate. We show that the vertical and…”
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Simple Vapor-Phase Synthesis of Single-Crystalline Ag Nanowires and Single-Nanowire Surface-Enhanced Raman Scattering by Mohanty, Paritosh, Yoon, Ilsun, Kang, Taejoon, Seo, Kwanyong, Varadwaj, Kumar S. K, Choi, Wonjun, Park, Q-Han, Ahn, Jae Pyung, Suh, Yung Doug, Ihee, Hyotcherl, Kim, Bongsoo

“…We report vapor-phase synthesis of single-crystalline free-standing Ag nanowires and polarized surface-enhanced Raman scattering (SERS) of a single nanowire,…”
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Phase-Controlled Growth of Metastable Fe5Si3 Nanowires by a Vapor Transport Method by Varadwaj, Kumar S. K, Seo, Kwanyong, In, Juneho, Mohanty, Paritosh, Park, Jeunghee, Kim, Bongsoo

“…We report the synthesis of single-crystalline nanowires (NWs) of metastable Fe5Si3 phase via an iodide vapor transport method. Free-standing Fe5Si3 NWs are…”
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Mechanism of Cr(VI) reduction by an indigenous Rhizobium pusense CR02 isolated from chromite mining quarry water (CMQW) at Sukinda Valley, India by Sahoo, Hrudananda, Kisku, Kanika, Varadwaj, Kumar S. K., Acharya, Prasannajit, Naik, Umesh Chandra

“…Toxicological assessment of CMQW generated due to chromite mining activities at Sukinda Valley has revealed high chromium contamination along with Zn and Fe…”
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Synthesis and Electrical Properties of Single Crystalline CrSi2 Nanowires by Seo, Kwanyong, Varadwaj, Kumar S. K, Cha, Dongkyu, In, Juneho, Kim, Jiyoung, Park, Jeunghee, Kim, Bongsoo

“…Free-standing CrSi2 nanowires are synthesized by a vapor transport based method for the first time. High-quality CrSi2 nanowires with a hexagonal cross section…”
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Understanding the oxygen evolution activity trend in Co2Fe LDH‐N doped graphene hybrids by Mohapatra, Biswaranjan D., Hota, Ipsha, Mantry, Swarna P., Behera, Nibedita, Parhi, Purnendu, Varadwaj, Kumar S. K.

“…We report the electrocatalytic activity of nanosized Co2Fe‐layered double hydroxide (LDH) on nitrogen doped graphene (NG) hybrid materials toward oxygen…”
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Functional molecule guided evolution of MnO x nanostructure patterns on N-graphene and their oxygen reduction activity by Behera, Nibedita, Mantry, Swarna P, Mohapatra, Biswaranjan D, Behera, Rajesh K, Varadwaj, Kumar S K

“…In this work, we systematically followed the growth of MnO nanostructures on trimesic acid (TMA)/benzoic acid (BA) functionalised nitrogen doped graphene (NG)…”
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Potentiostatic regeneration of oxygen reduction activity in MnOx @ graphene hybrid nanostructures by Mantry, Swarna P., Mohapatra, Biswaranjan D., Behera, Nibedita, Mishra, Patitapaban, Parhi, Purnendu, Varadwaj, Kumar S.K.

“…The oxygen reduction reaction (ORR) activity for Manganese oxide (MnOx) based nanostructures primarily depend upon their morphology, phase and surface Mn…”
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Functional molecule guided evolution of MnOx nanostructure patterns on N-graphene and their oxygen reduction activity by Behera, Nibedita, Mantry, Swarna P, Mohapatra, Biswaranjan D, Behera, Rajesh K, Varadwaj, Kumar S K

“…In this work, we systematically followed the growth of MnOx nanostructures on trimesic acid (TMA)/benzoic acid (BA) functionalised nitrogen doped graphene (NG)…”
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Oxygen reduction activity of Fe/Co/Ni doped MnOx @ graphene nanohybrid: A comparative study by Mantry, Swarna P., Mohapatra, Biswaranjan D., Behera, Rajesh K., Varadwaj, Kumar S.K.

“…•Fe, Co, and Ni doped MnOx was grown on NG.•Doped catalysts show better ORR activity than the undoped one.•Doping can tune the Mn valence.•Enhanced activity…”
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Aluminum Foil Mediated Noncatalytic Growth of ZnO Nanowire Arrays on an Indium Tin Oxide Substrate by Yoon, Hana, Seo, Kwanyong, Moon, Heesung, Varadwaj, Kumar S. K, In, Juneho, Kim, Bongsoo

“…Vertically grown ZnO nanowires are synthesized on an indium tin oxide (ITO) substrate via a vapor transport method. The arrays of ZnO nanowire are…”
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Single-Crystalline Ferromagnetic Fe1-xCoxSi Nanowires by IN, Juneho, VARADWAJ, Kumar S. K., SEO, Kwanyong, LEE, Sunghun, JO, Younghun, JUNG, Myung-Hwa, KIM, Jinhee, KIM, Bongsoo

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Composition-Tuned Co n Si Nanowires: Location-Selective Simultaneous Growth along Temperature Gradient by Seo, Kwanyong, Lee, Sunghun, Yoon, Hana, In, Juneho, Varadwaj, Kumar S. K, Jo, Younghun, Jung, Myung-Hwa, Kim, Jinhee, Kim, Bongsoo

“…We report the simultaneous and selective synthesis of single-crystalline Co n Si NWs (n = 1−3) and their corresponding crystal structuressimple cubic (CoSi),…”
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Understanding the oxygen evolution activity trend in Co 2 Fe LDH‐N doped graphene hybrids by Mohapatra, Biswaranjan D., Hota, Ipsha, Mantry, Swarna P., Behera, Nibedita, Parhi, Purnendu, Varadwaj, Kumar S. K.

“…Abstract We report the electrocatalytic activity of nanosized Co 2 Fe‐layered double hydroxide (LDH) on nitrogen doped graphene (NG) hybrid materials toward…”
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Synthesis and Electrical Properties of Single Crystalline CrSi 2 Nanowires by Seo, Kwanyong, Varadwaj, Kumar S. K., Cha, Dongkyu, In, Juneho, Kim, Jiyoung, Park, Jeunghee, Kim, Bongsoo

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Functional molecule guided evolution of MnO nanostructure patterns on N-graphene and their oxygen reduction activity by Behera, Nibedita, Mantry, Swarna P, Mohapatra, Biswaranjan D, Behera, Rajesh K, Varadwaj, Kumar S. K

“…In this work, we systematically followed the growth of MnO x nanostructures on trimesic acid (TMA)/benzoic acid (BA) functionalised nitrogen doped graphene…”
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Phase-Controlled Growth of Metastable Fe 5 Si 3 Nanowires by a Vapor Transport Method by Varadwaj, Kumar S. K., Seo, Kwanyong, In, Juneho, Mohanty, Paritosh, Park, Jeunghee, Kim, Bongsoo

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Single-Crystalline Ferromagnetic Fe 1- x Co x Si Nanowires by In, Juneho, Varadwaj, Kumar S. K., Seo, Kwanyong, Lee, Sunghun, Jo, Younghun, Jung, Myung-Hwa, Kim, Jinhee, Kim, Bongsoo

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Composition-tuned Co(n)Si nanowires: location-selective simultaneous growth along temperature gradient by Seo, Kwanyong, Lee, Sunghun, Yoon, Hana, In, Juneho, Varadwaj, Kumar S K, Jo, Younghun, Jung, Myung-Hwa, Kim, Jinhee, Kim, Bongsoo

“…We report the simultaneous and selective synthesis of single-crystalline Co(n)Si NWs (n = 1-3) and their corresponding crystal structures--simple cubic (CoSi),…”
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Single-Crystalline Ferromagnetic Fe1- x Co x Si Nanowires by In, Juneho, Varadwaj, Kumar S. K, Seo, Kwanyong, Lee, Sunghun, Jo, Younghun, Jung, Myung-Hwa, Kim, Jinhee, Kim, Bongsoo

“…We report the synthesis of ternary Fe1- x Co x Si nanowires by a vapor transport method. Structural characterization of the nanowires shows a…”
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