Functionalized Pd/ZnO Nanowires for Nanosensors

Lupan Oleg; Postica Vasile; Adelung Rainer; Labat Frederic; Ciofini Ilaria; Schurmann Ulrich; Kienle Lorenz; Chow Lee; Viana Bruno; Pauporte Thierry

Conţinutul numărului revistei

Articolul precedent

Articolul urmator

407

SM ISO690:2012

LUPAN, Oleg, POSTICA, Vasile, ADELUNG, Rainer, LABAT, Frederic, CIOFINI, Ilaria, SCHURMANN, Ulrich, KIENLE, Lorenz, CHOW, Lee, VIANA, Bruno, PAUPORTE, Thierry. Functionalized Pd/ZnO Nanowires for Nanosensors. In: Physica Status Solidi - Rapid Research Letters, 2018, vol. 12, pp. 1-9. ISSN 1862-6254. DOI: https://doi.org/10.1002/pssr.201700321

EXPORT metadate:
Google Scholar
Crossref
CERIF

DataCite
Dublin Core

Physica Status Solidi - Rapid Research Letters

Volumul 12 / 2018 / ISSN 1862-6254

Functionalized Pd/ZnO Nanowires for Nanosensors

DOI:https://doi.org/10.1002/pssr.201700321

Pag. 1-9

Lupan Oleg¹²³, Postica Vasile², Adelung Rainer¹, Labat Frederic³, Ciofini Ilaria³, Schurmann Ulrich¹, Kienle Lorenz¹, Chow Lee⁴, Viana Bruno³, Pauporte Thierry³

¹ Institute for Material Science, Christian-Albrechts-University of Kiel,
² Technical University of Moldova,
³ PSL Research University, Chimie ParisTech - CNRS, Institut de Recherche de Chimie Paris,
⁴ University of Central Florida

Disponibil în IBN: 16 iulie 2021

Descarcă PDF

Rezumat

A method for surface doping and functionalization of ZnO nanowires (NWs) with Pd (Pd/ZnO) in a one-step process is presented. The main advantage of this method is to combine the simultaneous growth, surface doping, and functionalization of NWs by using electrochemical deposition (ECD) at relatively low temperatures (90 °C). Our approach essentially reduces the number of technological steps of nanomaterial synthesis and final nanodevices fabrication with enhanced performances. A series of nanosensor devices is fabricated based on single Pd/ZnO NWs with a radius of about 80 nm using a FIB/SEM system. The influence of Pd nominal composition in Pd/ZnO NW on the H₂ sensing response is studied in detail and a corresponding mechanism is proposed. The results demonstrate an ultra-high response and selectivity of the synthesized nanosensors to hydrogen gas at room temperature. The optimal concentration of PdCl₂ in the electrolyte to achieve extremely sensitive nanodevices with a gas response (S_H2) ≈ 1.3 × 10⁴ (at 100 ppm H₂ concentration) and relatively high rapidity is 0.75 µM. Theoretical calculations on Pd/ZnO bulk and functionalized surface further validated the experimental hypothesis. Our results demonstrate the importance of noble metal presence on the surface due to doping and functionalization of nanostructures in the fabrication of highly-sensitive and selective gas nanosensors operating at room temperature with reduced power consumption.

Cuvinte-cheie
gas sensors, hydrogen, nanowires, palladium, ZnO

Crossref XML Export

<?xml version='1.0' encoding='utf-8'?>
<doi_batch version='4.3.7' xmlns='http://www.crossref.org/schema/4.3.7' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://www.crossref.org/schema/4.3.7 http://www.crossref.org/schema/deposit/crossref4.3.7.xsd'>
<head>
<doi_batch_id>ibn-135575</doi_batch_id>
<timestamp>1713277242</timestamp>
<depositor>
<depositor_name>Information Society Development Instiute, Republic of Moldova</depositor_name>
<email_address>idsi@asm.md</email_address>
</depositor>
</head>
<body>
<journal>
<journal_metadata>
<full_title>Physica Status Solidi - Rapid Research Letters</full_title>
<issn media_type='print'>18626254</issn>
</journal_metadata>
<journal_issue>
<publication_date media_type='print'>
<year>2018</year>
</publication_date>
<issue></issue>
</journal_issue>
<journal_article publication_type='full_text'><titles>
<title>Functionalized Pd/ZnO Nanowires for Nanosensors</title>
</titles>
<contributors>
<person_name sequence='first' contributor_role='author'>
<given_name>Oleg</given_name>
<surname>Lupan</surname>
</person_name>
<person_name sequence='additional' contributor_role='author'>
<given_name>Vasile</given_name>
<surname>Postica</surname>
</person_name>
<person_name sequence='additional' contributor_role='author'>
<given_name>Rainer</given_name>
<surname>Adelung</surname>
</person_name>
<person_name sequence='additional' contributor_role='author'>
<given_name>Frederic</given_name>
<surname>Labat</surname>
</person_name>
<person_name sequence='additional' contributor_role='author'>
<given_name>Ilaria</given_name>
<surname>Ciofini</surname>
</person_name>
<person_name sequence='additional' contributor_role='author'>
<given_name>Ulrich</given_name>
<surname>Schurmann</surname>
</person_name>
<person_name sequence='additional' contributor_role='author'>
<given_name>Lorenz</given_name>
<surname>Kienle</surname>
</person_name>
<person_name sequence='additional' contributor_role='author'>
<given_name>Lee</given_name>
<surname>Chow</surname>
</person_name>
<person_name sequence='additional' contributor_role='author'>
<given_name>Bruno</given_name>
<surname>Viana</surname>
</person_name>
<person_name sequence='additional' contributor_role='author'>
<given_name>Thierry</given_name>
<surname>Pauporte</surname>
</person_name>
</contributors>
<publication_date media_type='print'>
<year>2018</year>
</publication_date>
<pages>
<first_page>1</first_page>
<last_page>9</last_page>
</pages>
<doi_data>
<doi>10.1002/pssr.201700321</doi>
<resource>http://www.crossref.org/</resource>
</doi_data>
</journal_article>
</journal>
</body>
</doi_batch>