A route to detect H2 in ambient conditions using a sensor based on reduced graphene oxide

2020 ◽  
Vol 304 ◽  
pp. 111884 ◽  
Author(s):  
G. Tabares ◽  
A. Redondo-Cubero ◽  
L. Vazquez ◽  
M. Revenga ◽  
S. Cortijo-Campos ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Ambient Conditions ◽  
Reduced Graphene

Plasma-induced highly efficient synthesis of boron doped reduced graphene oxide for supercapacitors

2016 ◽  
Vol 52 (73) ◽  
pp. 10988-10991 ◽  
Author(s):  
Shaobo Li ◽  
Zhaofeng Wang ◽  
Hanmei Jiang ◽  
Limei Zhang ◽  
Jingzheng Ren ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Barrier Discharge ◽  
Efficient Synthesis ◽  
Ambient Conditions ◽  
Plasma Technology ◽  
Dbd Plasma ◽  
Dielectric Barrier ◽  
Boron Doped ◽  
Reduced Graphene

In this work, we presented a novel route to synthesize boron doped reduced graphene oxide (rGO) by using the dielectric barrier discharge (DBD) plasma technology under ambient conditions.

Reduced Graphene Oxide Supported Ag Nanoparticles: An Efficient Catalyst for CO 2 Conversion at Ambient Conditions

ChemCatChem ◽  
2020 ◽  
Vol 12 (19) ◽  
pp. 4825-4830
Author(s):  
Xiao Zhang ◽  
Kai‐Hong Chen ◽  
Zhi‐Hua Zhou ◽  
Liang‐Nian He
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Ag Nanoparticles ◽  
Ambient Conditions ◽  
Efficient Catalyst ◽  
Reduced Graphene

Ceria-reduced graphene oxide nanocomposite as an efficient electrocatalyst towards artificial N2 conversion to NH3 under ambient conditions

2019 ◽  
Vol 55 (72) ◽  
pp. 10717-10720 ◽  
Author(s):  
Hongtao Xie ◽  
Qin Geng ◽  
Xin Li ◽  
Ting Wang ◽  
Yonglan Luo ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Ambient Conditions ◽  
Electrocatalytic Performance ◽  
Reduced Graphene ◽  
Excellent Selectivity

Ultrasmall CeO2 on the surface of rGO sheets exhibits electrocatalytic performance towards artificial N2 conversion to NH3 with excellent selectivity.

An ultrasmall Ru2P nanoparticles–reduced graphene oxide hybrid: an efficient electrocatalyst for NH3 synthesis under ambient conditions

2020 ◽  
Vol 8 (1) ◽  
pp. 77-81 ◽  
Author(s):  
Runbo Zhao ◽  
Chuangwei Liu ◽  
Xiaoxue Zhang ◽  
Xiaojuan Zhu ◽  
Peipei Wei ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Reversible Hydrogen Electrode ◽  
Ambient Conditions ◽  
Hydrogen Electrode ◽  
Faradaic Efficiency ◽  
Reduced Graphene

A Ru2P–reduced graphene oxide hybrid acts as a superior catalyst for electrochemical N2 fixation in 0.1 M HCl, achieving a large NH3 yield of 32.8 μg h−1mgcat.−1 and a high faradaic efficiency of 13.04%−0.05 V vs. the reversible hydrogen electrode.

scholarly journals N-doped reduced graphene oxide for room-temperature NO gas sensors

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yu-Sung Chang ◽  
Feng-Kuan Chen ◽  
Du-Cheng Tsai ◽  
Bing-Hau Kuo ◽  
Fuh-Sheng Shieu
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Room Temperature ◽  
Gas Sensing ◽  
Ambient Conditions ◽  
Gas Sensitivity ◽  
Nitrogen Doped ◽  
Low Concentrations ◽  
Reduced Graphene ◽  
P Type

AbstractIn this study, we use nitrogen-doped to improving the gas-sensing properties of reduced graphene oxide. Graphene oxide was prepared according to a modified Hummers’ method and then nitrogen-doped reduced graphene oxide (N-rGO) was synthesized by a hydrothermal method using graphene oxide and NH4OH as precursors. The rGO is flat and smooth with a sheet-like morphology while the N-rGO exhibits folded morphology. This type of folding of the surface morphology can increase the gas sensitivity. The N-rGO and the rGO sensors showed n-type and p-type semiconducting behaviors in ambient conditions, respectively, and were responsive to low concentrations of NO gases (< 1000 ppb) at room temperature. The gas-sensing results showed that the N-rGO sensors could detect NO gas at concentrations as low as 400 ppb. The sensitivity of the N-rGO sensor to 1000 ppb NO (1.7) is much better than that of the rGO sensor (0.012). Compared with pure rGO, N-rGO exhibited a higher sensitivity and excellent reproducibility.

In situ Synthesis of Reduced Graphene Oxide Supported CoMo Nanoparticles as Efficient Catalysts for Hydrogen Generation from NH3BH3

2018 ◽  
Vol 232 (3) ◽  
pp. 431-443 ◽  
Author(s):  
Xigang Du ◽  
Yonghua Duan ◽  
Jun Zhang ◽  
Gang Mi
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Catalytic Activity ◽  
Reduced Graphene Oxide ◽  
Hydrogen Generation ◽  
Sodium Molybdate ◽  
High Catalytic Activity ◽  
Ambient Conditions ◽  
Reduced Graphene

AbstractCoMo nanoparticles (NPs) supported on reduced graphene oxide (RGO) were synthesized by a one-stepin situco-reduction of an aqueous solution of cobalt(II) chloride, sodium molybdate dihydrate and graphene oxide (GO) using NaBH4as the sole reductant under ambient conditions. The powder XRD, FTIR, EDS and TEM were employed to characterize the structure, size and composition of the CoMo/RGO catalysts. The as-synthesized Co0.9Mo0.1/RGO catalysts exhibited high catalytic activity for the hydrolytic dehydrogenation of ammonia borane (AB) at room temperature. The as-synthesized Co0.9Mo0.1/RGO nanocatalysts exhibited much higher catalytic activity than Co/RGO, Mo/RGO and the RGO-free Co0.9Mo0.1counterpart. Moreover, kinetic studies indicate that the catalytic hydrolysis of AB by Co0.9Mo0.1/RGO has first order kinetics with respect to the the catalyst concentration, but zero order kinetics with respect to the substrate concentration. The Co0.9Mo0.1/RGO catalyst has a turnover frequency (TOF) of 15.8 mol H2·(mol·Co0.9Mo0.1/RGO)−1·min−1at 25°C. Furthermore, the Co0.9Mo0.1/RGO show good recyclability for hydrogen generation from an aqueous solution of AB, which enables the practical reuse of the catalysts. Hence, this general method can be easily extended to the facile preparation of other RGO-based metallic systems.

Reduced graphene oxide supported nickel–palladium alloy nanoparticles as a superior catalyst for the hydrogenation of alkenes and alkynes under ambient conditions

RSC Advances ◽  
2016 ◽  
Vol 6 (34) ◽  
pp. 28538-28542 ◽  
Author(s):  
Yasin Çetinkaya ◽  
Önder Metin ◽  
Metin Balci
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Catalytic Performance ◽  
Alloy Nanoparticles ◽  
Palladium Alloy ◽  
Ambient Conditions ◽  
Reduced Graphene

rGO–Ni30Pd70 catalyst showed a superior catalytic performance surpassing the commercial Pd/C catalyst both in activity and stability for the hydrogenation of alkenes and alkynes to alkanes.

A MoS2 nanosheet–reduced graphene oxide hybrid: an efficient electrocatalyst for electrocatalytic N2 reduction to NH3 under ambient conditions

2019 ◽  
Vol 7 (6) ◽  
pp. 2524-2528 ◽  
Author(s):  
Xianghong Li ◽  
Xiang Ren ◽  
Xuejing Liu ◽  
Jinxiu Zhao ◽  
Xu Sun ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Ambient Conditions ◽  
Stable Catalyst ◽  
Reduced Graphene ◽  
Mos2 Nanosheet

A MoS2 nanosheet–reduced graphene oxide hybrid behaves as a high-performance and stable catalyst for ambient electrochemical N2-to-NH3 fixation.

Cu3P nanoparticle-reduced graphene oxide hybrid: an efficient electrocatalyst to realize N2-to-NH3 conversion under ambient conditions

2020 ◽  
Vol 56 (65) ◽  
pp. 9328-9331 ◽  
Author(s):  
Runbo Zhao ◽  
Qin Geng ◽  
Le Chang ◽  
Peipei Wei ◽  
Yonglan Luo ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Ambient Conditions ◽  
Reduced Graphene

For electrocatalytic N2-to-NH3 fixation, a Cu3P-rGO nanohybrid affords a Faradic efficiency of 10.11% with a NH3 yield of 26.38 μg h−1 mgcat.−1 at −0.45 V vs. RHE.

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