The influence of catalytic activity on the phase transition governed binary switch point of MISiC-FET lambda sensors

2006 ◽  
Vol 252 (20) ◽  
pp. 7473-7486 ◽  
Author(s):  
Helena Wingbrant ◽  
Anita Lloyd Spetz
Keyword(s):  
Phase Transition ◽  
Catalytic Activity ◽  
Switch Point ◽  
Binary Switch

Mechanistic insights into the phase transition and metal ex-solution phenomena of Pr0.5Ba0.5Mn0.85Co0.15O3−δ from simple to layered perovskite under reducing conditions and enhanced catalytic activity

2021 ◽  
Author(s):  
Kyeounghak Kim ◽  
Sangwook Joo ◽  
Rui Huang ◽  
Hyung Jun Kim ◽  
Guntae Kim ◽  
...  
Keyword(s):  
Phase Transition ◽  
Catalytic Activity ◽  
Oxygen Vacancies ◽  
Layered Perovskite ◽  
Reducing Conditions ◽  
Selective Formation

The selective formation of oxygen vacancies plays a key role in the phase transition to layered perovskite with B-metal ex-solution.

Highly efficient hydrogen evolution reaction by strain and phase engineering in composites of Pt and MoS2 nano-scrolls

2017 ◽  
Vol 19 (28) ◽  
pp. 18356-18365 ◽  
Author(s):  
Da Young Hwang ◽  
Kyoung Hwan Choi ◽  
Jeong Eon Park ◽  
Dong Hack Suh
Keyword(s):  
Phase Transition ◽  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
High Catalytic Activity ◽  
Highly Efficient ◽  
Bending Strain ◽  
Phase Engineering

Our strategy begins with MoS2 sheets decorated with Pt NPs and their scrolls (called MoS2@Pt scrolls) with intrinsic bending strain (2.4%) to provide the phase transition from the 2H to the 1T phase (28%). MoS2@Pt scrolls have the amount of Pt NPs (8.3 wt%) and high catalytic activity (39 mV per decade).

Crystallization Behavior of Mg-Doped Titania

2010 ◽  
Vol 434-435 ◽  
pp. 847-849
Author(s):  
Le Fu Mei ◽  
Kai Ming Liang
Keyword(s):  
Thin Film ◽  
Phase Transition ◽  
Catalytic Activity ◽  
Crystallization Behavior ◽  
Tio2 Thin Film ◽  
Sol Gel ◽  
Doped Tio2 ◽  
Photo Catalytic Activity ◽  
Doped Titania ◽  
Mg Doped

The Mg-doped TiO2 was prepared by Sol-gel method at low temperature. The crystallization of TiO2 was studied by DTA, it was shown that the phase transition temperature of the Mg (NO3)2-doped TiO2 from amorphous to anatase and then to rutile significantly reduce. The XRD results show that the Mg-doped TiO2 has anatase and rutile annealed at 600 °C. Studies of photo-catalytic degradation show that the photo-catalytic activity of Mg-doped TiO2 thin film is higher than that of non-doped TiO2.

Intercalation of aromatic amine for the 2H–1T′ phase transition of MoS2 by experiments and calculations

Nanoscale ◽  
2018 ◽  
Vol 10 (24) ◽  
pp. 11349-11356 ◽  
Author(s):  
Ik Seon Kwon ◽  
In Hye Kwak ◽  
Hafiz Ghulam Abbas ◽  
Gabin Jung ◽  
Yeron Lee ◽  
...  
Keyword(s):  
Phase Transition ◽  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Aromatic Amine ◽  
Hydrogen Evolution Reaction ◽  
Layered Nanostructures

As the MoS2 layered nanostructures intercalated with dimethyl-phenylenediamine, they adopt preferentially 1T’ phase and show excellent catalytic activity toward the hydrogen evolution reaction.

Surface intercalated spherical MoS2xSe2(1−x) nanocatalysts for highly efficient and durable hydrogen evolution reactions

2019 ◽  
Vol 48 (23) ◽  
pp. 8279-8287 ◽  
Author(s):  
Bo Lin ◽  
Zhiping Lin ◽  
Shougang Chen ◽  
Meiyan Yu ◽  
Wen Li ◽  
...  
Keyword(s):  
Phase Transition ◽  
Surface Roughness ◽  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Highly Efficient ◽  
Large Numbers ◽  
Hydrogen Evolution Reactions

Surface intercalated spherical MoS2xSe2(1−x) nanocatalysts with large numbers of defects and edge areas phase transition, and increased surface roughness significantly improved the HER catalytic activity.

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