Self-assembly of Pt nanocrystals into three-dimensional superlattices results in enhanced electrocatalytic performance for methanol oxidation

CrystEngComm ◽  
2019 ◽  
Vol 21 (3) ◽  
pp. 411-419 ◽  
Author(s):  
Guangran Xu ◽  
Jiayin Liu ◽  
Baocang Liu ◽  
Jun Zhang
Keyword(s):  
Low Temperature ◽  
Methanol Oxidation ◽  
Self Assembly ◽  
Three Dimensional ◽  
Solution Approach ◽  
Electrocatalytic Performance ◽  
Temperature Solution ◽  
Nanocrystal Superlattices ◽  
Pt Nanocrystals

A simple low-temperature solution approach was developed to directly realize a series of three-dimensional Pt nanocrystal superlattices composed of well-defined interior Pt nanocrystals for enhanced electrocatalytic performance for methanol oxidation.

Directed self-assembly pathways of three-dimensional Pt/Pd nanocrystal superlattice electrocatalysts for enhanced methanol oxidation reaction

2018 ◽  
Vol 6 (26) ◽  
pp. 12759-12767 ◽  
Author(s):  
Guangran Xu ◽  
Rui Si ◽  
Jiayin Liu ◽  
Luyao Zhang ◽  
Xia Gong ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Self Assembly ◽  
Oxidation Reaction ◽  
Active Sites ◽  
Nitrogen Doping ◽  
Three Dimensional ◽  
Methanol Oxidation Reaction ◽  
Assembly Strategy ◽  
Nanocrystal Superlattices ◽  
Assembly Pathways

A new directed self-assembly strategy is developed to achieve 3D Pt/Pd nanocrystal superlattices with enhanced electrocatalytic performance for methanol oxidation reaction due to the enriched metallic Pt active sites by appropriate Pd alloying and surface nitrogen doping.

Self-assembly synthesis of cactuslike Cu2O 3D nanoarchitectures via a low-temperature solution approach

2008 ◽  
Vol 43 (8-9) ◽  
pp. 2166-2171 ◽  
Author(s):  
Yongsong Luo ◽  
Benhai Yu ◽  
Youchao Tu ◽  
Ying Liang ◽  
Yonggang Zhang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Self Assembly ◽  
Solution Approach ◽  
Temperature Solution

scholarly journals Rapid Growth of TiO2 Nanoflowers via Low-Temperature Solution Process: Photovoltaic and Sensing Applications

Materials ◽  
2019 ◽  
Vol 12 (4) ◽  
pp. 566 ◽  
Author(s):  
M. Akhtar ◽  
Ahmad Umar ◽  
Swati Sood ◽  
InSung Jung ◽  
H. Hegazy ◽  
...  
Keyword(s):  
Low Temperature ◽  
Anatase Phase ◽  
Three Dimensional ◽  
Solution Process ◽  
Dye Sensitized Solar Cell ◽  
Sensor Applications ◽  
Dye Sensitized ◽  
Sensing Applications ◽  
Density Growth ◽  
Temperature Solution

This paper reports the rapid synthesis, characterization, and photovoltaic and sensing applications of TiO2 nanoflowers prepared by a facile low-temperature solution process. The morphological characterizations clearly reveal the high-density growth of a three-dimensional flower-shaped structure composed of small petal-like rods. The detailed properties confirmed that the synthesized nanoflowers exhibited high crystallinity with anatase phase and possessed an energy bandgap of 3.2 eV. The synthesized TiO2 nanoflowers were utilized as photo-anode and electron-mediating materials to fabricate dye-sensitized solar cell (DSSC) and liquid nitroaniline sensor applications. The fabricated DSSC demonstrated a moderate conversion efficiency of ~3.64% with a maximum incident photon to current efficiency (IPCE) of ~41% at 540 nm. The fabricated liquid nitroaniline sensor demonstrated a good sensitivity of ~268.9 μA mM−1 cm−2 with a low detection limit of 1.05 mM in a short response time of 10 s.

Arginine-assisted synthesis of palladium nanochain networks and their enhanced electrocatalytic activity for borohydride oxidation

RSC Advances ◽  
2015 ◽  
Vol 5 (23) ◽  
pp. 18111-18115 ◽  
Author(s):  
Geng-Tao Fu ◽  
Rui Wu ◽  
Chang Liu ◽  
Jun Lin ◽  
Dong-Mei Sun ◽  
...  
Keyword(s):  
Self Assembly ◽  
Electrocatalytic Activity ◽  
Oxidation Reaction ◽  
Three Dimensional ◽  
Assembly Process ◽  
Electrocatalytic Performance ◽  
Borohydride Oxidation

Three-dimensional Pd nanochain networks (Pd-NCNs) were prepared by an arginine-assisted self-assembly process, exhibiting excellent electrocatalytic performance towards the borohydride oxidation reaction.

Paclitaxel-induced formation of 3D nanocrystal superlattices within injectable protein-based hybrid nanoparticles

2018 ◽  
Vol 54 (82) ◽  
pp. 11586-11589
Author(s):  
Jeong Yu Lee ◽  
Ho Yeon Son ◽  
Jae Chul Park ◽  
Jongnam Park ◽  
Yoon Sung Nam
Keyword(s):  
Polyethylene Glycol ◽  
Iron Oxide ◽  
Human Serum Albumin ◽  
Serum Albumin ◽  
Human Serum ◽  
Self Assembly ◽  
Three Dimensional ◽  
Superparamagnetic Iron Oxide ◽  
Hybrid Nanoparticles ◽  
Nanocrystal Superlattices

Self-assembly of monodisperse superparamagnetic iron oxide nanocrystals into a close-packed, three-dimensional (3D) superlattice is designed within cross-linked protein-based nanoparticles composed of human serum albumin and polyethylene glycol.

Manipulation of ZnO Nanowire by Low-Temperature Solution Approach

2005 ◽  
Vol 891 ◽  
Author(s):  
Chia-Hsin Lin ◽  
Syh-Yuh Cheng ◽  
Ren-Jay Lin ◽  
Yi-Hui Wang
Keyword(s):  
Low Temperature ◽  
Field Emission ◽  
Heterogeneous Nucleation ◽  
Zno Nanowires ◽  
Polystyrene Bead ◽  
Solution Approach ◽  
Field Emission Displays ◽  
Wafer Substrate ◽  
Temperature Solution ◽  
Direct Growth

ABSTRACTA catalyst free, structure-induced heterogeneous nucleation and direct growth of ZnO nanowires on organic and inorganic substrates was prepared by low-temperature solution approach process. The experimental results showed that ZnO nanowires could be directly synthesized upon the concave of substrate without any pre-seeding. In this work ZnO nanowires were grown on both polystyrene bead layer and physical-grinded wafer substrate. ZnO nanowires with a broad aspect ratio of 10−2 ∼ 102 was controlled mainly by adjusting of reactant concentration and pH state of solution. A needle-like ZnO nanotip were also prepared by a two-step limited growth condition as a result that tip diameter is several nanometers only, which may be highly in favor of the field emission. Structure-induced heterogeneous nucleation and growth facilitates the fabrication of ZnO nanowires as the potential photoeletronic units in field-emission displays.

Ni-doped rutile TiO2 nanoflowers: low-temperature solution synthesis and enhanced photocatalytic efficiency

RSC Advances ◽  
2016 ◽  
Vol 6 (30) ◽  
pp. 25511-25518 ◽  
Author(s):  
Lu-Lu Lai ◽  
Wei Wen ◽  
Jin-Ming Wu
Keyword(s):  
Low Temperature ◽  
Rate Constant ◽  
Photocatalytic Efficiency ◽  
Solution Synthesis ◽  
Rutile Tio2 ◽  
Solution Approach ◽  
Temperature Solution ◽  
Degussa P25

A facile solution approach was developed to synthesize micrometre-sized aggregates of Ni-doped TiO2 nanoflowers, which exhibited a rate constant four times that of commercial Degussa P25 TiO2 nanoparticles under the UV + Vis illumination.

Iron Oxide Nanopropellers Prepared by a Low-Temperature Solution Approach

2006 ◽  
Vol 110 (29) ◽  
pp. 14087-14091 ◽  
Author(s):  
Wan-Hua Yang ◽  
Chi-Fang Lee ◽  
Horng Yi Tang ◽  
Dar-Bin Shieh ◽  
Chen-Sheng Yeh
Keyword(s):  
Iron Oxide ◽  
Low Temperature ◽  
Solution Approach ◽  
Temperature Solution

scholarly journals Low Temperature Solution-Processable 3D-Patterned Charge Recombination Layer for Organic Tandem Solar Cells

Materials ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 162 ◽  
Author(s):  
Jin Woo Choi ◽  
Jong Woo Jin ◽  
Denis Tondelier ◽  
Yvan Bonnassieux ◽  
Bernard Geffroy
Keyword(s):  
Low Temperature ◽  
Sol Gel ◽  
3D Structure ◽  
Three Dimensional ◽  
Charge Recombination ◽  
Tandem Solar Cells ◽  
Tandem Structure ◽  
Temperature Solution ◽  
Patterning Technique ◽  
Solution Processable

We propose a novel method to pattern the charge recombination layer (CRL) with a low-temperature solution-processable ZnO layer (under 150 °C) for organic solar cell applications. Due to the optimal drying process and thermal annealing condition, ZnO sol-gel particles formed a three-Dimensional (3D) structure without using a high temperature or ramping method. The generated 3D nano-ripple pattern showed a height of around 120 nm, and a valley-to-valley distance of about 500 nm. Based on this newly developed ZnO nano-ripple patterning technique, it was possible to pattern the CRL without damaging the underneath layers in tandem structure. The use of nano-ripple patterned ZnO as the part of CRL, led to the concomitant improvement of the power conversion efficiency (PCE) of about 30%, compared with non-patterned CRL device.

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