Self-assembly of noble metal-free graphene–copper plasmonic metasurfaces

2020 ◽  
Vol 8 (34) ◽  
pp. 11896-11905 ◽  
Author(s):  
Iolanda Di Bernardo ◽  
Jonathan Bradford ◽  
Zelio Fusco ◽  
Jireh Mendoza ◽  
Thanh Tran-Phu ◽  
...  
Keyword(s):  
Noble Metal ◽  
Self Assembly ◽  
Plasmonic Sensors ◽  
Metal Free ◽  
Free Graphene

Graphene-protected Cu nanoislands as VOC plasmonic sensors.

Facile preparation and highly efficient photocatalytic hydrogen evolution of novel CuxNiy nanoalloy/graphene nanohybrids

2017 ◽  
Vol 1 (3) ◽  
pp. 548-554 ◽  
Author(s):  
Xiangqing Li ◽  
Honglei Xu ◽  
Qiang Luo ◽  
Shizhao Kang ◽  
Lixia Qin ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrogen Production ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Noble Metal ◽  
Photocatalytic Hydrogen Evolution ◽  
Metal Free ◽  
Free Graphene ◽  
Visible Light Driven ◽  
Facile Preparation

The noble metal-free CuxNiy bimetallic nanoalloy decorated graphene nanohybrids (CuxNiy/G) exhibited a higher photocatalytic activity for hydrogen production. It provides a new and cheaper noble-metal-free graphene-based photocatalyst system for visible light-driven photocatalytic hydrogen evolution.

Noble-Metal-Free Co0.6Fe2.4O4 Nanocubes Self-Assembly Monolayer for Highly Sensitive Electrochemical Detection of As(III) Based on Surface Defects

2017 ◽  
Vol 90 (2) ◽  
pp. 1263-1272 ◽  
Author(s):  
Shan-Shan Li ◽  
Wen-Yi Zhou ◽  
Yi-Xiang Li ◽  
Min Jiang ◽  
Zheng Guo ◽  
...  
Keyword(s):  
Electrochemical Detection ◽  
Noble Metal ◽  
Self Assembly ◽  
Surface Defects ◽  
Metal Free ◽  
Highly Sensitive

P-Type Cobalt Phosphide Composites (CoP–Co2P) Decorated on Titanium Oxide for Enhanced Noble-Metal-Free Photocatalytic H2 Evolution Activity

Langmuir ◽  
2021 ◽  
Vol 37 (11) ◽  
pp. 3321-3330
Author(s):  
Rong Liang ◽  
Yanwen Wang ◽  
Chao Qin ◽  
Xuehua Chen ◽  
Zhizhen Ye ◽  
...  
Keyword(s):  
Titanium Oxide ◽  
Noble Metal ◽  
H2 Evolution ◽  
Metal Free ◽  
Cobalt Phosphide ◽  
P Type ◽  
Photocatalytic H2 Evolution

scholarly journals Converting copper sulfide to copper with surface sulfur for electrocatalytic alkyne semi-hydrogenation with water

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yongmeng Wu ◽  
Cuibo Liu ◽  
Changhong Wang ◽  
Yifu Yu ◽  
Yanmei Shi ◽  
...  
Keyword(s):  
Binding Energy ◽  
Noble Metal ◽  
Atomic Hydrogen ◽  
Copper Sulfide ◽  
Low Cost ◽  
Water Electrolysis ◽  
Metal Free ◽  
Copper Nanowire

AbstractElectrocatalytic alkyne semi-hydrogenation to alkenes with water as the hydrogen source using a low-cost noble-metal-free catalyst is highly desirable but challenging because of their over-hydrogenation to undesired alkanes. Here, we propose that an ideal catalyst should have the appropriate binding energy with active atomic hydrogen (H*) from water electrolysis and a weaker adsorption with an alkene, thus promoting alkyne semi-hydrogenation and avoiding over-hydrogenation. So, surface sulfur-doped and -adsorbed low-coordinated copper nanowire sponges are designedly synthesized via in situ electroreduction of copper sulfide and enable electrocatalytic alkyne semi-hydrogenation with over 99% selectivity using water as the hydrogen source, outperforming a copper counterpart without surface sulfur. Sulfur anion-hydrated cation (S2−-K+(H2O)n) networks between the surface adsorbed S2− and K+ in the KOH electrolyte boost the production of active H* from water electrolysis. And the trace doping of sulfur weakens the alkene adsorption, avoiding over-hydrogenation. Our catalyst also shows wide substrate scopes, up to 99% alkenes selectivity, good reducible groups compatibility, and easily synthesized deuterated alkenes, highlighting the promising potential of this method.

scholarly journals Double Perovskite Cobaltites Integrated in a Monolithic and Noble Metal-Free Photoelectrochemical Device for Efficient Water Splitting

2021 ◽  
Author(s):  
Junjie Zhu ◽  
Jónína B. Guđmundsdóttir ◽  
Ragnar Strandbakke ◽  
Kevin G. Both ◽  
Thomas Aarholt ◽  
...  
Keyword(s):  
Water Splitting ◽  
Noble Metal ◽  
Double Perovskite ◽  
Metal Free

Noble-metal-free dye-sensitized selective oxidation of methane to methanol with green light (550 nm)

Nano Research ◽  
2021 ◽  
Author(s):  
Xingyang Wu ◽  
Yi Zeng ◽  
Hangchen Liu ◽  
Jiaqing Zhao ◽  
Tierui Zhang ◽  
...  
Keyword(s):  
Selective Oxidation ◽  
Noble Metal ◽  
Green Light ◽  
Metal Free ◽  
Dye Sensitized ◽  
Oxidation Of Methane

A silicon-based hybrid photocathode modified with an N5-chelated nickel catalyst in a noble-metal-free biomimetic photoelectrochemical cell for solar-driven unbiased overall water splitting

2021 ◽  
Author(s):  
Lunlun Gong ◽  
Peili Zhang ◽  
Guoquan Liu ◽  
Yu Shan ◽  
Mei Wang
Keyword(s):  
Water Splitting ◽  
Nickel Catalyst ◽  
Noble Metal ◽  
Photoelectrochemical Cell ◽  
Metal Free ◽  
Overall Water Splitting ◽  
Redox Catalysts ◽  
Silicon Based ◽  
Modification Of The Surface

Modification of the surface of semiconductor-based photoelectrodes with molecular redox catalysts gives a way to realize atom-efficient catalysis for photoelectrochemical (PEC) H2 and O2 evolution. However, the diversity of immobilized...

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