46 resultados para Enriched Librarian
Filtro por publicador
- Aberystwyth University Repository - Reino Unido (8)
- Adam Mickiewicz University Repository (2)
- AMS Tesi di Dottorato - Alm@DL - Università di Bologna (1)
- AMS Tesi di Laurea - Alm@DL - Università di Bologna (1)
- Aquatic Commons (30)
- Archive of European Integration (2)
- Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (13)
- Aston University Research Archive (7)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (9)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (7)
- Biblioteca Digital de la Universidad Católica Argentina (2)
- Biblioteca Digital de Teses e Dissertações Eletrônicas da UERJ (18)
- BORIS: Bern Open Repository and Information System - Berna - Suiça (7)
- Boston University Digital Common (1)
- Brock University, Canada (2)
- Bucknell University Digital Commons - Pensilvania - USA (1)
- CaltechTHESIS (20)
- Cambridge University Engineering Department Publications Database (20)
- CentAUR: Central Archive University of Reading - UK (26)
- Center for Jewish History Digital Collections (2)
- Chinese Academy of Sciences Institutional Repositories Grid Portal (143)
- Cochin University of Science & Technology (CUSAT), India (1)
- Comissão Econômica para a América Latina e o Caribe (CEPAL) (1)
- CORA - Cork Open Research Archive - University College Cork - Ireland (9)
- CUNY Academic Works (1)
- Deakin Research Online - Australia (23)
- DI-fusion - The institutional repository of Université Libre de Bruxelles (1)
- Digital Archives@Colby (1)
- Digital Commons - Montana Tech (1)
- Digital Commons @ DU | University of Denver Research (1)
- Digital Commons at Florida International University (1)
- DigitalCommons - The University of Maine Research (1)
- DigitalCommons@The Texas Medical Center (5)
- DRUM (Digital Repository at the University of Maryland) (2)
- Duke University (15)
- eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (9)
- Fachlicher Dokumentenserver Paedagogik/Erziehungswissenschaften (1)
- Greenwich Academic Literature Archive - UK (1)
- Harvard University (2)
- Helda - Digital Repository of University of Helsinki (37)
- Indian Institute of Science - Bangalore - Índia (46)
- INSTITUTO DE PESQUISAS ENERGÉTICAS E NUCLEARES (IPEN) - Repositório Digital da Produção Técnico Científica - BibliotecaTerezine Arantes Ferra (3)
- Instituto Politécnico de Bragança (3)
- Instituto Politécnico do Porto, Portugal (4)
- National Center for Biotechnology Information - NCBI (20)
- Plymouth Marine Science Electronic Archive (PlyMSEA) (5)
- Portal de Periódicos Eletrônicos da UFPB (1)
- Portal de Revistas Científicas Complutenses - Espanha (3)
- Publishing Network for Geoscientific & Environmental Data (14)
- QSpace: Queen's University - Canada (2)
- QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (115)
- Queensland University of Technology - ePrints Archive (177)
- Repositório Científico do Instituto Politécnico de Lisboa - Portugal (2)
- Repositório Institucional da Universidade de Aveiro - Portugal (11)
- Repositório Institucional da Universidade Estadual de São Paulo - UNESP (1)
- Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (25)
- Research Open Access Repository of the University of East London. (1)
- Royal College of Art Research Repository - Uninet Kingdom (1)
- RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (2)
- SAPIENTIA - Universidade do Algarve - Portugal (5)
- SerWisS - Server für Wissenschaftliche Schriften der Fachhochschule Hannover (2)
- Universidad de Alicante (1)
- Universidad Politécnica de Madrid (5)
- Universidade de Lisboa - Repositório Aberto (7)
- Universidade de Madeira (1)
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP) (1)
- Universidade Federal do Pará (2)
- Universitätsbibliothek Kassel, Universität Kassel, Germany (1)
- Université de Lausanne, Switzerland (1)
- Université de Montréal, Canada (3)
- Université Laval Mémoires et thèses électroniques (1)
- University of Michigan (52)
- University of Queensland eSpace - Australia (15)
- Worcester Research and Publications - Worcester Research and Publications - UK (2)
Resumo:
We report a facile synthesis of three-dimensional (3D) nanodendrites of Pd nanoparticles (NPs) and nitrogen-doped carbon NPs (N-CNPs) by electroless deposition of Pd2+ ions. N-CNPs being an electron-enriched material act as a reducing agent. Moreover, the availability of a variety of nitrogen species in N-CNPs promotes the open arm structure as well as stabilizes the oriented 3D assembly of primary Pd NPs. The dendrites exhibit superior catalytic activity for methanol (0.5 M) oxidation in alkaline media (1 M NaOH) which is ascribed to the large electrochemical active surface area and the enhanced mass activity with repeated use. Further mass activity improvement has been realized after acid-treatment of dendrites which is attributed to the increment in the -OH group. The dendrites show higher mass activity (J(f) similar to 653 A g(-1)) in comparison with a commercial Pt-carbon/Pd-carbon (Pt-C/Pd-C) catalyst (J(f) similar to 46 and 163 A g(-1), respectively), better operational stability, superior CO tolerance with I-f/I-b (similar to 3.7) over a commercial Pt-C/Pd-C catalyst (I-f/I-b similar to 1.6 and 1.75, respectively) and may serve as a promising alternative to commercial Pt-C catalysts for anode application in alkaline fuel cells. To ensure the adaptability of our 3D-nanodendrites for other catalytic activities, we studied 4-nitrophenol reduction at room temperature. The 3D-nanodendrites show excellent catalytic activity toward 4-nitrophenol reduction, as well.