Rational Design of Metal Oxide Catalysts for Electrocatalytic Water Splitting

Nanoscale ◽  
2021 ◽  
Author(s):  
Yiming Xu ◽  
Kaicai Fan ◽  
Huai Qin Fu ◽  
Yu Zou ◽  
Mengyang Dong ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Metal Oxide ◽  
Energy Conversion ◽  
Water Splitting ◽  
Atomic Structure ◽  
Chemical Bonding ◽  
Redox Reactions ◽  
Rational Design ◽  
Metal Oxide Catalysts ◽  
Multiple Charge

Electrocatalytic energy conversion between electricity and chemical bonding energy is realized through redox reactions with multiple charge transfer steps at the electrode-electrolyte interface. The surface atomic structure of the electrode...

(Invited) Characterization of Charge Transfer and Recombination Processes at Metal Oxide Semiconductors for Solar Water Splitting

2021 ◽  
Vol MA2021-01 (39) ◽  
pp. 1251-1251
Author(s):  
Gerko Oskam ◽  
Ingrid Rodriguez Gutierrez ◽  
Manuel Rodríguez Pérez ◽  
Alberto Vega Poot ◽  
Geonel Rodriguez Gattorno ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Metal Oxide ◽  
Water Splitting ◽  
Metal Oxide Semiconductors ◽  
Oxide Semiconductors ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Recombination Processes

scholarly journals Adams Method Prepared Metal Oxide Catalysts for Solar-Driven Water Splitting

ChemPhotoChem ◽  
2018 ◽  
Vol 2 (3) ◽  
pp. 293-299 ◽  
Author(s):  
Michelle P. Browne ◽  
Christopher O'Rourke ◽  
Nathan Wells ◽  
Andrew Mills
Keyword(s):  
Metal Oxide ◽  
Water Splitting ◽  
Oxide Catalysts ◽  
Metal Oxide Catalysts ◽  
Adams Method

scholarly journals Multi-charge Transfer from Photodoped ITO Nanocrystals

2021 ◽  
Author(s):  
Michele Ghini ◽  
Andrea Camellini ◽  
Andrea Rubino ◽  
Ilka Kriegel
Keyword(s):  
Charge Transfer ◽  
Metal Oxide ◽  
Energy Conversion ◽  
Full Potential ◽  
Conversion Technology

Metal oxide nanocrystals are emerging as extremely versatile material for addressing many of the current challenging demands of energy-conversion technology. Being able to exploit their full potential is not only...

The Synergetic Effect of MoSO2/Graphite Nanosheets as Highly Efficient for Electrochemical Water Splitting in Acidic Media

2021 ◽  
Vol 13 (8) ◽  
pp. 1574-1583
Author(s):  
Abdul Qayoom Mugheri ◽  
Muhammad Soomar Samtio ◽  
Shahzad Ahmed Memon ◽  
Hassan Fouad ◽  
Sukumaran Anil ◽  
...  
Keyword(s):  
Composite Material ◽  
Renewable Energy ◽  
Charge Transfer ◽  
Metal Oxide ◽  
Water Splitting ◽  
Transfer Resistance ◽  
Tafel Slope ◽  
Graphite Nanosheets ◽  
Wide Range ◽  
Electrochemical Water Splitting

Metal oxide nanoarchitectures have a wide range of qualities that can be used to produce novel technologies in the field of renewable energy, such as energy conversion solar fuels and storage via the photovoltaic effect, and electrochemical water splitting. The approach for the synthesis of earth abundant metal oxide nanostructures is facile and cost effective and involves scalable methodologies for the development of functional devices. The composite material exhibits enhanced active edge sites for the potential HER. The electrochemical experiments revealed satisfactory results of electrocatalytic gas production HER. The composite sample produces a current density at 10 mAcm−2 an over potential of 345 mV and Tafel value of 60 mVdec−1 it exhibits at which predominantly ensures the swift charge transfer kinetics during HER. The sample 3 remains durable and stable for 30 hours. EIS shown value of 21.88 Ohms as charge transfer resistance which further strengthened HER and Tafel results. The sample 3 exhibits a 4.69 µFcm−2 capacitance double layer and surface area of 177.25 cm2 it further supports the unique productivity for HER activity. The small Tafel slope which relatively close to Pt shows a clear and high potential of as prepared MoS2/Graphite nanosheets composite material for the replacement of noble metals in the field of renewable energy. The tiny Tafel slope value suggests that the efficient hydrogen evolution reaction has a lot of promise. This developed method provides the alternative method for the development of other materials for the energy harvesting applications.

Assessment of Manganese Oxide and Cobalt Oxide Catalysts for Three Way Catalytic Converter

2020 ◽  
Vol 20 (4) ◽  
pp. 286-302
Author(s):  
Charula Patel ◽  
Nilesh Bhatt ◽  
Srinivas Palanki
Keyword(s):  
Metal Oxide ◽  
Manganese Oxide ◽  
Cobalt Oxide ◽  
Redox Reactions ◽  
Noble Metals ◽  
Catalytic Converter ◽  
Oxide Catalysts ◽  
Platinum Group Metals ◽  
Oxygen Storage ◽  
Metal Oxide Catalysts

Raising number of vehicles emits pollutants responsible for one third of total air pollution. Carbon monoxide (CO), unburned hydrocarbons (HC), and nitrogen oxides (NOx) are the main pollutants from petrol engines. It requires stringent vehicular emission norms to be followed for controlling it. Three Way Catalytic Converter (TWCC) contain Platinum Group Metals (PGMs) as catalyst to reduce exhaust emission and is widely used method that fulfills these standards. Because of high cost of PGMs and considerable advancement in metal oxide preparatory methods, metal oxide catalysts have gained more attraction. Manganese oxide (MnOx) and Cobalt Oxide (CoOx) have displayed impressive redox reactions at lower temperature. MnOx seems to be a suitable contender of Oxygen Storage Capacity (OSC) and Cobalt oxide (CoOx) has displayed an excellent catalytic activity for HC and CO oxidation. Hence, these catalysts attract the attention of researchers. Present paper assesses the prospect of MnOx and CoOx as catalysts for the TWCC for redox reactions of CO, HC and NOx and also in terms of OSC and T50 temperature. It is found that CoOx and MnOx both low cost metal oxide catalysts stand a good chance to replace the noble metals for TWCC.

Rational Design of Interface Refining through Ti4+/Zr4+ diffusion/doping and TiO2/ZrO2 Surface Crowning of ZnFe2O4 Nanocorals for Photoelectrochemical Water Splitting

2021 ◽  
Author(s):  
Sarang Kim ◽  
Mahadeo A. Mahadik ◽  
Anushkkaran Periyasamy ◽  
Weon-Sik Chae ◽  
Jungho Ryu ◽  
...  
Keyword(s):  
Solar Energy ◽  
Energy Conversion ◽  
Water Splitting ◽  
Charge Separation ◽  
Rational Design ◽  
Solar Energy Conversion ◽  
Photoelectrochemical Water Splitting ◽  
Effective Technique

The development of advanced assemblies of interfacial under- and overlayered photoanodes is an effective technique to overcome the problem of slow charge separation and enhance solar‐energy conversion. Present study reports...

Energy Conversion Chemistry: Mechanisms of Charge Transfer at Metal-Oxide Semiconductor/Solution Interfaces

1997 ◽  
Vol 74 (6) ◽  
pp. 657 ◽  
Author(s):  
Susan G. Yan ◽  
L. Andrew Lyon ◽  
Buford I. Lemon ◽  
Janice S. Preiskorn ◽  
Joseph T. Hupp
Keyword(s):  
Charge Transfer ◽  
Metal Oxide ◽  
Energy Conversion ◽  
Metal Oxide Semiconductor ◽  
Oxide Semiconductor
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