Hydrogenation/oxidation triggered highly efficient reversible color switching of organic molecules

2017 ◽  
Vol 7 (6) ◽  
pp. 1379-1385 ◽  
Author(s):  
Xiao Zhou ◽  
Yi-Fan Jiang ◽  
Hong-Li Guo ◽  
Xin Wang ◽  
Ya-Nan Liu ◽  
...  
Keyword(s):  
Oxidative Dehydrogenation ◽  
Organic Molecules ◽  
Hybrid Catalyst ◽  
Ambient Conditions ◽  
Highly Efficient ◽  
Highly Active ◽  
Color Switching

The reversible hydrogenation/oxidative dehydrogenation process of TH+/LTH over a highly active Pd–ZnO1−x hybrid catalyst under ambient conditions.

Highly efficient hydrolysis of ammonia borane by anion (−OH, F−, Cl−)-tuned interactions between reactant molecules and CoP nanoparticles

2017 ◽  
Vol 53 (4) ◽  
pp. 705-708 ◽  
Author(s):  
Zi-Cheng Fu ◽  
Yong Xu ◽  
Sharon Lai-Fung Chan ◽  
Wei-Wei Wang ◽  
Fang Li ◽  
...  
Keyword(s):  
High Performance ◽  
Ammonia Borane ◽  
Ambient Conditions ◽  
Highly Efficient ◽  
Performance System ◽  
Hydrolysis Of ◽  
Nanoparticle Catalyst

An anion-assisted hydrolytic H2-releasing ultra-high performance system involving ammonia borane and a CoP nanoparticle catalyst has been established under ambient conditions.

scholarly journals WS(1−x)Sex Nanoparticles Decorated Three-Dimensional Graphene on Nickel Foam: A Robust and Highly Efficient Electrocatalyst for the Hydrogen Evolution Reaction

Nanomaterials ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 929 ◽  
Author(s):  
Sajjad Hussain ◽  
Kamran Akbar ◽  
Dhanasekaran Vikraman ◽  
Rana Afzal ◽  
Wooseok Song ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Large Scale ◽  
Nickel Foam ◽  
Transition Metal Dichalcogenides ◽  
Three Dimensional ◽  
Cost Effective ◽  
Highly Efficient ◽  
Highly Active ◽  
Earth Abundant

To find an effective alternative to scarce, high-cost noble platinum (Pt) electrocatalyst for hydrogen evolution reaction (HER), researchers are pursuing inexpensive and highly efficient materials as an electrocatalyst for large scale practical application. Layered transition metal dichalcogenides (TMDCs) are promising candidates for durable HER catalysts due to their cost-effective, highly active edges and Earth-abundant elements to replace Pt electrocatalysts. Herein, we design an active, stable earth-abundant TMDCs based catalyst, WS(1−x)Sex nanoparticles-decorated onto a 3D porous graphene/Ni foam. The WS(1−x)Sex/graphene/NF catalyst exhibits fast hydrogen evolution kinetics with a moderate overpotential of ~−93 mV to drive a current density of 10 mA cm−2, a small Tafel slope of ~51 mV dec−1, and a long cycling lifespan more than 20 h in 0.5 M sulfuric acid, which is much better than WS2/NF and WS2/graphene/NF catalysts. Our outcomes enabled a way to utilize the TMDCs decorated graphene and precious-metal-free electrocatalyst as mechanically robust and electrically conductive catalyst materials.

Fabrication of Pd/CeO2 nanocubes as highly efficient catalysts for degradation of formaldehyde at room temperature

2021 ◽  
Author(s):  
Yafeng Chen ◽  
Guimin Jiang ◽  
Xiangzhi Cui ◽  
Zuotai Zhang ◽  
Xinmei Hou
Keyword(s):  
Room Temperature ◽  
Complete Decomposition ◽  
Highly Efficient ◽  
Highly Active ◽  
Surface Active

The highly active Pd/CeO2 nanocube interface guarantees a high percentage of metallic Pd and the surface active O species is responsible for the complete decomposition of formaldehyde.

Highly efficient sandwich structured Perovskite solar cell using PEDOT:PSS in room ambient conditions

2020 ◽  
Author(s):  
Monika Srivastava ◽  
Karan Surana ◽  
Shruti Singh ◽  
P.K. Singh ◽  
Ram Chandra Singh
Keyword(s):  
Solar Cell ◽  
Perovskite Solar Cell ◽  
Ambient Conditions ◽  
Highly Efficient

scholarly journals Hybridisation of perovskite nanocrystals with organic molecules for highly efficient liquid scintillators

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Sangeun Cho ◽  
Sungwoo Kim ◽  
Jongmin Kim ◽  
Yongcheol Jo ◽  
Ilhwan Ryu ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Organic Molecules ◽  
Liquid Scintillator ◽  
Low Cost ◽  
Radiation Detection ◽  
Quantum Yields ◽  
X Ray ◽  
Highly Efficient ◽  
X Ray Imaging ◽  
New Generation

Abstract Compared with solid scintillators, liquid scintillators have limited capability in dosimetry and radiography due to their relatively low light yields. Here, we report a new generation of highly efficient and low-cost liquid scintillators constructed by surface hybridisation of colloidal metal halide perovskite CsPbA3 (A: Cl, Br, I) nanocrystals (NCs) with organic molecules (2,5-diphenyloxazole). The hybrid liquid scintillators, compared to state-of-the-art CsI and Gd2O2S, demonstrate markedly highly competitive radioluminescence quantum yields under X-ray irradiation typically employed in diagnosis and treatment. Experimental and theoretical analyses suggest that the enhanced quantum yield is associated with X-ray photon-induced charge transfer from the organic molecules to the NCs. High-resolution X-ray imaging is demonstrated using a hybrid CsPbBr3 NC-based liquid scintillator. The novel X-ray scintillation mechanism in our hybrid scintillators could be extended to enhance the quantum yield of various types of scintillators, enabling low-dose radiation detection in various fields, including fundamental science and imaging.

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