scholarly journals Active sites engineering leads to exceptional ORR and OER bifunctionality in P,N Co-doped graphene frameworks

2017 ◽  
Vol 10 (5) ◽  
pp. 1186-1195 ◽  
Author(s):  
Guo-Liang Chai ◽  
Kaipei Qiu ◽  
Mo Qiao ◽  
Maria-Magdalena Titirici ◽  
Congxiao Shang ◽  
...  
Keyword(s):  
Noble Metal ◽  
Active Sites ◽  
Metal Catalysts ◽  
Noble Metal Catalysts ◽  
Highly Efficient ◽  
Doped Graphene ◽  
Co Doped

Highly efficient bifunctional P,N co-doped graphene framework (PNGF) with both ORR and OER activities that are superior to noble metal catalysts.

Iron–cobalt bimetal decorated carbon nanotubes as cost-effective cathode catalysts for Li–O2 batteries

2016 ◽  
Vol 4 (18) ◽  
pp. 7020-7026 ◽  
Author(s):  
Won-Jin Kwak ◽  
Tae-Geun Kang ◽  
Yang-Kook Sun ◽  
Yun Jung Lee
Keyword(s):  
Carbon Nanotubes ◽  
Noble Metal ◽  
Cost Effective ◽  
Metal Catalysts ◽  
Iron Cobalt ◽  
Cathode Catalysts ◽  
Noble Metal Catalysts ◽  
Highly Efficient

FeCo bimetal decorated CNTs were synthesized as highly efficient and cost-effective non-noble metal catalysts for Li-O2 batteries.

scholarly journals Bimetallic carbide of Co3W3C enhanced non-noble-metal catalysts with high activity and stability for acidic oxygen reduction reaction

RSC Advances ◽  
2018 ◽  
Vol 8 (22) ◽  
pp. 12292-12299 ◽  
Author(s):  
Bolin Li ◽  
Jianmin Zhou ◽  
Ling Zhang ◽  
Zesheng Li
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Activity ◽  
Noble Metal ◽  
Acidic Medium ◽  
Reduction Reaction ◽  
Metal Catalysts ◽  
Noble Metal Catalysts ◽  
Co Doped

Bimetallic carbide enhanced nitrogen/phosphor co-doped graphite (Co3W3C/NPG) with high performances were first demonstrated for oxygen reduction reaction in acidic medium.

Simple and Scalable Mechanochemical Synthesis of Noble Metal Catalysts with Single Atoms toward Highly Efficient Hydrogen Evolution

2020 ◽  
Vol 30 (25) ◽  
pp. 2000531 ◽  
Author(s):  
Haiyan Jin ◽  
Siraj Sultan ◽  
Miran Ha ◽  
Jitendra N. Tiwari ◽  
Min Gyu Kim ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Noble Metal ◽  
Mechanochemical Synthesis ◽  
Metal Catalysts ◽  
Noble Metal Catalysts ◽  
Single Atoms ◽  
Highly Efficient

scholarly journals Recent Advances in Single-Atom Electrocatalysts for Oxygen Reduction Reaction

Research ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-51 ◽  
Author(s):  
Junxing Han ◽  
Juanjuan Bian ◽  
Chunwen Sun
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Noble Metal ◽  
Active Sites ◽  
Reduction Reaction ◽  
Metal Catalysts ◽  
Single Atom ◽  
Noble Metal Catalysts ◽  
Recent Advances ◽  
Platinum Group

Oxygen reduction reaction (ORR) plays significant roles in electrochemical energy storage and conversion systems as well as clean synthesis of fine chemicals. However, the ORR process shows sluggish kinetics and requires platinum-group noble metal catalysts to accelerate the reaction. The high cost, rare reservation, and unsatisfied durability significantly impede large-scale commercialization of platinum-based catalysts. Single-atom electrocatalysts (SAECs) featuring with well-defined structure, high intrinsic activity, and maximum atom efficiency have emerged as a novel field in electrocatalytic science since it is promising to substitute expensive platinum-group noble metal catalysts. However, finely fabricating SAECs with uniform and highly dense active sites, fully maximizing the utilization efficiency of active sites, and maintaining the atomically isolated sites as single-atom centers under harsh electrocatalytic conditions remain urgent challenges. In this review, we summarized recent advances of SAECs in synthesis, characterization, oxygen reduction reaction (ORR) performance, and applications in ORR-related H2O2 production, metal-air batteries, and low-temperature fuel cells. Relevant progress on tailoring the coordination structure of isolated metal centers by doping other metals or ligands, enriching the concentration of single-atom sites by increasing metal loadings, and engineering the porosity and electronic structure of the support by optimizing the mass and electron transport are also reviewed. Moreover, general strategies to synthesize SAECs with high metal loadings on practical scale are highlighted, the deep learning algorithm for rational design of SAECs is introduced, and theoretical understanding of active-site structures of SAECs is discussed as well. Perspectives on future directions and remaining challenges of SAECs are presented.

scholarly journals Recent Advances in Layered-Double-Hydroxides Based Noble Metal Nanoparticles Efficient Electrocatalysts

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2644
Author(s):  
Zexuan Zhang ◽  
Peilong Li ◽  
Xin Zhang ◽  
Cun Hu ◽  
Yuwen Li ◽  
...  
Keyword(s):  
Noble Metal ◽  
Layered Double Hydroxides ◽  
Active Sites ◽  
Clean Energy ◽  
Metal Catalysts ◽  
Metal Species ◽  
Energy Crisis ◽  
Noble Metal Catalysts ◽  
Recent Advances ◽  
Double Hydroxides

With the energy crisis and environmental pollution becoming more and more serious, it is urgent to develop renewable and clean energy. Hydrogen production from electrolyzed water is of great significance to solve the energy crisis and environmental problems in the future. Recently, layered double hydroxides (LDHs) materials have been widely studied in the electrocatalysis field, due to their unique layered structure, tunable metal species and highly dispersed active sites. Moreover, the LDHs supporting noble metal catalysts obtained through the topotactic transformation of LDHs precursors significantly reduce the energy barrier of electrolyzing water, showing remarkable catalytic activity, good conductivity and excellent durability. In this review, we give an overview of recent advances on LDHs supporting noble metal catalysts, from a brief introduction, to their preparation and modification methods, to an overview of their application in the electrocatalysis field, as well as the challenges and outlooks in this promising field on the basis of current development.

Fe-based non-noble metal catalysts with dual active sites of nanosized metal carbide and single-atomic species for oxygen reduction reaction

2020 ◽  
Vol 8 (42) ◽  
pp. 22379-22388
Author(s):  
Gil-Seong Kang ◽  
Jue-Hyuk Jang ◽  
Su-Young Son ◽  
Cheol-Ho Lee ◽  
Youn-Ki Lee ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Noble Metal ◽  
Active Sites ◽  
Reduction Reaction ◽  
Metal Catalysts ◽  
Metal Carbide ◽  
Noble Metal Catalysts ◽  
Active Metal ◽  
Atomic Species

For increasing the active metal sites densities on the M–N–C catalyst the facile strategy was presented through the use of dual active sites such as single atomic Fe–Nx species and nanosized Fe3C with ∼2 nm.

Cobalt and vanadium co-doped FeOOH nanoribbons: an iron-rich electrocatalyst for efficient water oxidation

2021 ◽  
Author(s):  
Xin Wang ◽  
Wei Liu ◽  
Jingnan Wang ◽  
Chuanming Li ◽  
Rongkun Zheng ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Oxygen Evolution ◽  
Noble Metal ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Low Cost ◽  
Metal Catalysts ◽  
Excellent Performance ◽  
Noble Metal Catalysts ◽  
Co Doped

Exploring non-noble metal catalysts with low-cost and excellent performance for oxygen evolution reaction (OER) is of great importance for energy conversion technology. Fe is the second most abundant metal on...

Styrene-divinylbenzene polymer oxidation catalyst

1981 ◽  
Vol 46 (11) ◽  
pp. 2657-2662
Author(s):  
Zdeněk Prokop ◽  
Karel Setínek
Keyword(s):  
Functional Groups ◽  
Noble Metal ◽  
Additional Data ◽  
Catalytic Properties ◽  
Metal Catalysts ◽  
Oxidation Catalyst ◽  
Noble Metal Catalysts ◽  
Polymer Catalyst ◽  
Styrene Divinylbenzene ◽  
Polymer Oxidation

Some additional data about properties and applicability of a styrene-divinylbenzene polymer catalyst containing acidic and redox functional groups are reported. It is shown that the catalysts of this type can be prepared reproducibly and exhibit catalytic properties comparable to the properties of noble metal catalysts.

scholarly journals Sulfur Tolerance of Noble Metal Catalysts for Steam Methane Reforming

2017 ◽  
Vol 60 (3) ◽  
pp. 137-145 ◽  
Author(s):  
Fumihiro Watanabe ◽  
Ikuko Kaburaki ◽  
Naohiro Shimoda ◽  
Akira Igarashi ◽  
Shigeo Satokawa
Keyword(s):  
Noble Metal ◽  
Metal Catalysts ◽  
Methane Reforming ◽  
Sulfur Tolerance ◽  
Steam Methane Reforming ◽  
Noble Metal Catalysts ◽  
Steam Methane
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