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You searched for: Journal ACS applied materials & interfaces Remove constraint Journal: ACS applied materials & interfaces Subject oxidation Remove constraint Subject: oxidation Subject Raman spectroscopy Remove constraint Subject: Raman spectroscopy Subject graphene Remove constraint Subject: graphene
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1. Two-Dimensional Van der Waals Heterostructures for Synergistically Improved Surface-Enhanced Raman Spectroscopy

Author:
Cai, Qiran; Gan, Wei; Falin, Alexey; Watanabe, Kenji; Taniguchi, Takashi; Zhuang, Jincheng; Hao, Weichang; Huang, Shaoming; Tao, Tao; Chen, Ying; Li, Lu Hua
Source:
ACS applied materials & interfaces 2020 v.12 no.19 pp. 21985-21991
ISSN:
1944-8252
Subject:
Raman spectroscopy; air; boron nitride; chemical analysis; electromagnetic field; electrons; environmental protection; fluorescence; food processing; graphene; heat; nanoparticles; nanosilver; oxidation; van der Waals forces
Abstract:
... Surface-enhanced Raman spectroscopy (SERS) is a precise and noninvasive analytical technique that is widely used in chemical analysis, environmental protection, food processing, pharmaceutics, and diagnostic biology. However, it is still a challenge to produce highly sensitive and reusable SERS substrates with a minimum fluorescence background. In this work, we propose the use of van der Waals het ...
DOI:
10.1021/acsami.0c01157

2. CaO-Promoted Graphene-Supported Palladium Nanocrystals as a Universal Electrocatalyst for Direct Liquid Fuel Cells

Author:
Shamraiz, Umair; Ahmad, Zeeshan; Raza, Bareera; Badshah, Amin; Ullah, Sajid; Nadeem, Muhammad Arif
Source:
ACS applied materials & interfaces 2020 v.12 no.4 pp. 4396-4404
ISSN:
1944-8252
Subject:
Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; atomic absorption spectrometry; calcium oxide; carbon monoxide; catalysts; catalytic activity; electrochemistry; energy-dispersive X-ray analysis; ethanol; formic acid; fuel cells; graphene; graphene oxide; liquids; methanol; nanocrystals; oxidation; palladium; scanning electron microscopy; sodium borohydride; transmission electron microscopy
Abstract:
... Here, we present the fabrication of a reduced graphene oxide-supported PdCa (PdCa/rGO) alloyed catalyst via a NaBH₄ reduction method for direct alcohol fuel cells in basic medium and direct formic acid fuel cells in acidic medium. Powder X-ray diffraction, energy-dispersive X-ray spectroscopy, scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron mic ...
DOI:
10.1021/acsami.9b16151

3. Investigation of the Oxidation Behavior of Graphene/Ge(001) Versus Graphene/Ge(110) Systems

Author:
Akhtar, Fatima; Dabrowski, Jaroslaw; Lisker, Marco; Yamamoto, Yuji; Mai, Andreas; Wenger, Christian; Lukosius, Mindaugas
Source:
ACS applied materials & interfaces 2020 v.12 no.2 pp. 3188-3197
ISSN:
1944-8252
Subject:
Raman spectroscopy; X-ray photoelectron spectroscopy; air; graphene; oxidation; oxygen; scanning electron microscopy; vapors
Abstract:
... The oxidation behavior of Ge(001) and Ge(110) surfaces underneath the chemical vapor deposition (CVD)-grown graphene films has been investigated experimentally and interpreted on the basis of ab initio calculations. Freshly grown samples were exposed to air for more than 7 months and periodically monitored by X-ray photoelectron spectroscopy, scanning electron microscopy, and Raman spectroscopy. T ...
DOI:
10.1021/acsami.9b18448