scholarly journals Recent progress on the development of metal oxides/graphene composites for gas sensing

2015 ◽  
Vol 45 (12) ◽  
pp. 1245-1261
Author(s):  
Lei LI ◽  
Wei CHEN
Keyword(s):  
Metal Oxides ◽  
Recent Progress ◽  
Gas Sensing

Metal-oxide based ammonia gas sensors: A review

2020 ◽  
Vol 10 ◽  
Author(s):  
Priya Gupta ◽  
Savita Maurya ◽  
Narendra Kumar Pandey ◽  
Vernica Verma
Keyword(s):  
Metal Oxide ◽  
Metal Oxides ◽  
Gas Sensor ◽  
Gas Sensors ◽  
Review Paper ◽  
Gas Sensing ◽  
Gas Sensitivity ◽  
Ammonia Gas ◽  
Ammonia Sensing ◽  
Ammonia Gas Sensors

: This review paper encompasses a study of metal-oxide and their composite based gas sensors used for the detection of ammonia (NH3) gas. Metal-oxide has come into view as an encouraging choice in the gas sensor industry. This review paper focuses on the ammonia sensing principle of the metal oxides. It also includes various approaches adopted for increasing the gas sensitivity of metal-oxide sensors. Increasing the sensitivity of the ammonia gas sensor includes size effects and doping by metal or other metal oxides which will change the microstructure and morphology of the metal oxides. Different parameters that affect the performances like sensitivity, stability, and selectivity of gas sensors are discussed in this paper. Performances of the most operated metal oxides with strengths and limitations in ammonia gas sensing application are reviewed. The challenges for the development of high sensitive and selective ammonia gas sensor are also discussed.

Semiconducting Metal Oxides for Photocatalytic and Gas Sensing Applications

2020 ◽  
pp. 265-301
Author(s):  
Ritu Malik ◽  
Vijay K. Tomer ◽  
Vandna Chaudhary ◽  
Nirav Joshi ◽  
Surender Duhan
Keyword(s):  
Metal Oxides ◽  
Gas Sensing ◽  
Sensing Applications ◽  
Semiconducting Metal Oxides

scholarly journals Recent progress in supercapacitors based on the advanced carbon electrodes

2019 ◽  
Vol 8 (1) ◽  
pp. 299-314 ◽  
Author(s):  
Yusheng Pan ◽  
Ke Xu ◽  
Canliu Wu
Keyword(s):  
Synergistic Effect ◽  
Conducting Polymers ◽  
Metal Oxides ◽  
Recent Progress ◽  
Composite Electrode ◽  
Research Progress ◽  
Carbon Electrodes ◽  
Composite Electrodes ◽  
Pure Carbon ◽  
Carbon Based

Abstract This paper demonstrates a brief review of the research progress of the advanced carbon-based materials for the supercapacitor electrodes. Diverse types of carbon-based electrodes exploited and reported to the literature are summarized and classified into pure carbon electrodes, carbon/metal oxides composite electrodes, carbon/metal oxides/conducting polymers composite electrodes as well as carbon electrodes based on other materials. Pure carbon electrodes are firstly introduced, confirming their merits and shortcomings. To cover the shortage of pure carbon electrodes and further enhances their electrochemical performance, a composite electrode, combined with metal oxides and conducting polymers, is respectively presented. It is worth noticing in this article that combining various materials to form composites has been one main direction to own a positive synergistic effect on the carbon-based electrodes.

Recent progress in conversion reaction metal oxide anodes for Li-ion batteries

2017 ◽  
Vol 1 (11) ◽  
pp. 2213-2242 ◽  
Author(s):  
Kangzhe Cao ◽  
Ting Jin ◽  
Li Yang ◽  
Lifang Jiao
Keyword(s):  
Metal Oxide ◽  
Metal Oxides ◽  
Recent Progress ◽  
Li Ion Batteries ◽  
Conversion Reaction ◽  
Binary Metal ◽  
Binary Metal Oxides ◽  
Li Ion

Single and binary metal oxides based on conversion reactions for Li-ion batteries are discussed in this review.

Recent Progress on Defect‐rich Transition Metal Oxides and Their Energy‐Related Applications

2020 ◽  
Vol 15 (22) ◽  
pp. 3717-3736
Author(s):  
Yanzhi Wang ◽  
Zuozhong Liang ◽  
Haoquan Zheng ◽  
Rui Cao
Keyword(s):  
Transition Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Recent Progress

Gas Sensing Properties of TiO2 and SnO2 Nanopowders Obtained through Gel Combustion

2006 ◽  
Vol 45 ◽  
pp. 1828-1833
Author(s):  
Fabio A. Deorsola ◽  
P. Mossino ◽  
Ignazio Amato ◽  
Bruno DeBenedetti ◽  
A. Bonavita ◽  
...  
Keyword(s):  
Response Time ◽  
Metal Oxides ◽  
Gas Sensing ◽  
Low Cost ◽  
High Sensitivity ◽  
Fast Response ◽  
High Specific Surface Area ◽  
Research Field ◽  
Wide Range ◽  
Gel Combustion

Nanostructured semiconductor metal oxides have played a central role in the gas sensing research field, because of their high sensitivity, selectivity and low response time. Among all the processes, developed for the synthesis of nanostructured metal oxides, gel combustion seems to be the most promising route due to low-cost precursors and simplicity of the process. It combines chemical gelation and combustion, involving the formation of a gel from an acqueous solution and an exothermic redox reaction, yielding to very porous and softly agglomerated nanopowders. In this work, nanostructured tin oxide, SnO2, and titanium oxide, TiO2, have been synthesized through gel combustion. Powders showed nanometric particle size and high specific surface area. The so-obtained TiO2 and SnO2 nanopowders have been used as sensitive element of resistive λ sensor and ethanol sensor respectively, realized depositing films of nanopowders dispersed in water onto alumina substrates provided with Pt contacts and heater. TiO2-based sensors showed at high temperature good response, fast response time, linearity in a wide range of O2 concentration and long-term stability. SnO2-based sensors have shown high sensitivity to low concentrations of ethanol at moderate temperature.

Flame-spray-made metal-loaded semiconducting metal oxides thick films for flammable gas sensing

2012 ◽  
Vol 171-172 ◽  
pp. 43-61 ◽  
Author(s):  
Thanittha Samerjai ◽  
Nittaya Tamaekong ◽  
Khatcharin Wetchakun ◽  
Viruntachar Kruefu ◽  
Chaikarn Liewhiran ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Gas Sensing ◽  
Thick Films ◽  
Flame Spray ◽  
Flammable Gas ◽  
Semiconducting Metal Oxides

scholarly journals Multifunctional nanoparticles: recent progress in cancer therapeutics

2015 ◽  
Vol 51 (68) ◽  
pp. 13248-13259 ◽  
Author(s):  
G. Seeta Rama Raju ◽  
Leah Benton ◽  
E. Pavitra ◽  
Jae Su Yu
Keyword(s):  
Metal Oxides ◽  
Cancer Cells ◽  
Recent Progress ◽  
Cancer Therapeutics ◽  
Multifunctional Nanoparticles ◽  
Functional Biomaterials ◽  
Target Cancer

In recent times, several biocompatible nanomaterials with different morphologies and compositions, such as metals, metal oxides, and polymers, have been employed as multi-functional biomaterials to target cancer cells.

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