In Situ Formation of a 3D Amorphous Cobalt- Borate Nanoarray: An Efficient Non-Noble Metal Catalytic Electrode for Non-Enzyme Glucose Detection

2018 ◽  
Vol 3 (38) ◽  
pp. 10580-10584 ◽  
Author(s):  
Wenqing Deng ◽  
Rui Dai ◽  
Chao You ◽  
Pingyue Hu ◽  
Xuping Sun ◽  
...  
Keyword(s):  
Noble Metal ◽  
Glucose Detection ◽  
In Situ Formation

Self-reducing asymmetric polymer membrane for in situ formation and containment of noble metal nanocatalysts

2015 ◽  
Vol 17 (8) ◽  
pp. 4157-4161 ◽  
Author(s):  
Sankararao Chappa ◽  
Rakesh N. Shinde ◽  
Ashok K. Pandey
Keyword(s):  
Catalytic Activity ◽  
Noble Metal ◽  
Redox Reactions ◽  
Polymer Membrane ◽  
Good Catalytic Activity ◽  
In Situ Formation ◽  
Inorganic And Organic

Highly stable metal nanocatalysts formed in self-reducing asymmetric polymer membrane exhibit good catalytic activity in inorganic and organic redox reactions.

scholarly journals In Situ Formation of Heterojunctions in Modified Graphitic Carbon Nitride: Synthesis and Noble Metal Free Photocatalysis

2014 ◽  
Vol 26 (19) ◽  
pp. 5812-5818 ◽  
Author(s):  
Menny Shalom ◽  
Miguel Guttentag ◽  
Christian Fettkenhauer ◽  
Sahika Inal ◽  
Dieter Neher ◽  
...  
Keyword(s):  
Noble Metal ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Metal Free ◽  
In Situ Formation

In situ formation of a 3D core/shell structured Ni3N@Ni–Bi nanosheet array: an efficient non-noble-metal bifunctional electrocatalyst toward full water splitting under near-neutral conditions

2017 ◽  
Vol 5 (17) ◽  
pp. 7806-7810 ◽  
Author(s):  
Lisi Xie ◽  
Fengli Qu ◽  
Zhiang Liu ◽  
Xiang Ren ◽  
Shuai Hao ◽  
...  
Keyword(s):  
Water Splitting ◽  
Noble Metal ◽  
Bifunctional Catalyst ◽  
Core Shell ◽  
Bifunctional Electrocatalyst ◽  
Overall Water Splitting ◽  
Nanosheet Array ◽  
In Situ Formation ◽  
Neutral Conditions

An in situ electrochemically developed core/shell structured Ni3N@Ni–Bi nanosheet array behaves as an efficient bifunctional catalyst for overall water splitting.

Cryogelation of Chitosan Using Noble-Metal Ions: In Situ Formation of Nanoparticles

2014 ◽  
Vol 15 (6) ◽  
pp. 2246-2255 ◽  
Author(s):  
Dmitriy Berillo ◽  
Bo Mattiasson ◽  
Harald Kirsebom
Keyword(s):  
Metal Ions ◽  
Noble Metal ◽  
In Situ Formation

In situ formation of noble metal nanoparticles on multiwalled carbon nanotubes and its implication in metal–nanotube interactions

Carbon ◽  
2012 ◽  
Vol 50 (3) ◽  
pp. 875-884 ◽  
Author(s):  
Manuela Scarselli ◽  
Luca Camilli ◽  
Paola Castrucci ◽  
Francesca Nanni ◽  
Silvano Del Gobbo ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Metal Nanoparticles ◽  
Multiwalled Carbon Nanotubes ◽  
Noble Metal ◽  
Noble Metal Nanoparticles ◽  
Multiwalled Carbon ◽  
In Situ Formation

scholarly journals Formation of compact systems of super-Earths via dynamical instabilities and giant impacts

2019 ◽  
Vol 491 (4) ◽  
pp. 5595-5620 ◽  
Author(s):  
Sanson T S Poon ◽  
Richard P Nelson ◽  
Seth A Jacobson ◽  
Alessandro Morbidelli
Keyword(s):  
Initial Conditions ◽  
Post Processing ◽  
Significant Modification ◽  
Kepler Mission ◽  
Giant Impacts ◽  
Low Mass ◽  
In Situ Formation ◽  
Dynamical Instabilities ◽  
Gaseous Envelopes

ABSTRACT The NASA’s Kepler mission discovered ∼700 planets in multiplanet systems containing three or more transiting bodies, many of which are super-Earths and mini-Neptunes in compact configurations. Using N-body simulations, we examine the in situ, final stage assembly of multiplanet systems via the collisional accretion of protoplanets. Our initial conditions are constructed using a subset of the Kepler five-planet systems as templates. Two different prescriptions for treating planetary collisions are adopted. The simulations address numerous questions: Do the results depend on the accretion prescription?; do the resulting systems resemble the Kepler systems, and do they reproduce the observed distribution of planetary multiplicities when synthetically observed?; do collisions lead to significant modification of protoplanet compositions, or to stripping of gaseous envelopes?; do the eccentricity distributions agree with those inferred for the Kepler planets? We find that the accretion prescription is unimportant in determining the outcomes. The final planetary systems look broadly similar to the Kepler templates adopted, but the observed distributions of planetary multiplicities or eccentricities are not reproduced, because scattering does not excite the systems sufficiently. In addition, we find that ∼1 per cent of our final systems contain a co-orbital planet pair in horseshoe or tadpole orbits. Post-processing the collision outcomes suggests that they would not significantly change the ice fractions of initially ice-rich protoplanets, but significant stripping of gaseous envelopes appears likely. Hence, it may be difficult to reconcile the observation that many low-mass Kepler planets have H/He envelopes with an in situ formation scenario that involves giant impacts after dispersal of the gas disc.

scholarly journals Method for determining the thermal conductivity of in situ formation rock using drilling cuttings

AIP Advances ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 065015
Author(s):  
Fu Yi ◽  
Xupeng Qi ◽  
Xuexin Zheng ◽  
Huize Yu ◽  
Wenming Bai ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
In Situ Formation

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.

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