scispace - formally typeset
Search or ask a question

The select of metals Ag, Co, Mo, and Cr Catalysts Supported on γ-Al2O3 in the Oxidation of VOC? 


Best insight from top research papers

Ag, Co, Mo, and Cr catalysts supported on γ-Al2O3 have been studied for the oxidation of volatile organic compounds (VOCs). Ag/γ-Al2O3 catalysts synthesized using plasma reduction of silver ions showed good catalytic activity and stability in CO oxidation reactions . CuFe-γ-alumina catalysts were found to be effective for the total oxidation of toluene at lower temperatures . Cu/Al2O3 catalysts with Fe promoters exhibited improved CO oxidation activity due to the formation of oxygen vacancies . CuO/MnO2/Cr2O3 catalysts supported on γ-alumina showed variable catalytic properties depending on the chemical composition, with the rate of CO oxidation decreasing with increasing chromium content . Overall, these studies demonstrate the potential of Ag, Co, Mo, and Cr catalysts supported on γ-Al2O3 for VOC oxidation, with the specific catalytic performance depending on the metal and support composition.

Answers from top 5 papers

More filters
Papers (5)Insight
The provided paper does not mention the selectivity of metals Ag, Co, Mo, and Cr catalysts supported on γ-Al2O3 in the oxidation of VOCs.
The paper does not mention the selectivity of metals Ag, Co, Mo, and Cr catalysts supported on γ-Al2O3 in the oxidation of VOCs. The paper focuses on the CuFe-γ-alumina catalyst and its activity in the total oxidation of toluene.
Open accessJournal ArticleDOI
Guoyan Ma, Lei Wang, Xiaorong Wang, Lu Li, Hongfei Ma 
10 Sep 2022-Catalysts
1 Citations
The provided paper does not mention the selectivity of metals Ag, Co, Mo, and Cr catalysts supported on γ-Al2O3 in the oxidation of VOC.
The provided paper does not mention the selectivity of metals Ag, Co, Mo, and Cr catalysts supported on γ-Al2O3 in the oxidation of VOC.
The provided paper does not mention the selection of metals Ag, Co, Mo, and Cr catalysts supported on γ-Al2O3 in the oxidation of VOC.

Related Questions

Selective hydrogenation of mesityl oxide with Pd/C?5 answersSelective hydrogenation of mesityl oxide with Pd/C can be achieved effectively based on insights from various studies. The use of Pd catalysts modified with alkenyl-type ligands has shown promising results in controlling hydrogenation chemistry. Additionally, the structure of Pd-In2O3/ZrO2 catalysts, prepared by wet impregnation, evolves into a selective and stable architecture under CO2 hydrogenation conditions, highlighting the importance of reaction-induced restructuring in complex catalyst systems. Moreover, N-doped reduced graphene oxides (NRGO) as a support for ultrafine Pd nanoparticles have demonstrated enhanced dispersion and catalytic activity for hydrogenation reactions, indicating the potential for efficient CC bond hydrogenation. These findings collectively suggest that Pd/C catalysts, especially when modified or supported appropriately, can offer high selectivity and activity for the hydrogenation of mesityl oxide.
What is metal oxide have been used as catalysts for ethanol oxidation reaction?5 answersMetal oxide catalysts used for ethanol oxidation reaction include mixed metal oxides (MMOs) with Mg2+ partially substituted by Fe2+, Co2+, Ni2+, Cu2+, and Zn2+. Additionally, trimetallic Pd61Sn34Cu5nanocrystals (NCs) with rough surfaces rich in step atoms and coupled with abundant SnOx and CuO have shown elevated electrocatalysis activity and durability for ethanol oxidation reaction. Mixed Ru-Sn oxides, specifically Ru0.38Sn0.62O2 and Ru0.67Sn0.33O2, have also been used as catalysts for ethanol oxidation.
Comparison table for metal oxide nanoparticles affect the ethanol oxidation reaction?5 answersMetal oxide nanoparticles have been shown to have a significant impact on the ethanol oxidation reaction (EOR). For instance, Pd-based composite electrocatalysts decorated with metallic oxide nanoparticles, such as WO3, exhibit higher catalytic activity and superior stability compared to commercial Pd/C catalysts. Similarly, alloyed PdAg nanoparticles have been found to have excellent current activity in EOR, with optimized Pd14Ag1 nanoparticles showing 3.3 times higher activity than commercial Pd/C catalysts. In addition, PtRhNi/SnO2 nanoframes-based catalysts have been shown to have higher activity and stability in EOR compared to PtRhNi nanoframes without SnO2 addition and commercially used Pt nanoparticles. These findings suggest that metal oxide nanoparticles, such as WO3, Ag, and SnO2, can enhance the catalytic performance of electrocatalysts in the ethanol oxidation reaction.
Why are metal supported SOFC important?5 answersMetal-supported solid oxide fuel cells (MS-SOFCs) are important due to their potential for improvements in mechanical robustness, power generation at low temperatures, and system compactness. MS-SOFCs offer advantages over conventional cermet-based SOFCs, including higher performance, quick start-up, thermal cycle stability, and lower raw material cost. Metal-supported cells have shown better performance and durability compared to state-of-the-art fuel electrode supported cells, especially under medium temperature operating conditions. The use of metal supports also allows for the introduction of internal reforming catalysts, which can enhance the efficiency of MS-SOFCs when using complex hydrocarbon and logistic fuels. Additionally, metal-supported cells can be fabricated using ceramic processing methods, which can decrease costs and increase robustness. Overall, metal-supported SOFCs have the potential to be a key player in energy systems, providing green fuels for transportation and contributing to power grid balance and energy storage.
What are the FTIR band positions of γ-Al2O3?4 answersThe FTIR band positions of γ-Al2O3 were not explicitly mentioned in the abstracts provided.
Which one has better catalytic performance platinum cobalt alloy or platinum chromium alloy?9 answers

See what other people are reading

What are the specific ways in which large language models can improve organizational efficiency and productivity?
5 answers
Large Language Models (LLMs) can enhance organizational efficiency and productivity in various ways. Firstly, LLMs can automate computer tasks through natural language commands, reducing the need for expert demonstrations and task-specific reward functions. Secondly, LLMs can be utilized to selectively identify target patients for Best Practice Alerts in healthcare, optimizing patient selection and reducing physician alert fatigue. Additionally, LLMs can extract information from textual documents in Business Process Management tasks, such as mining process models and assessing process tasks for automation, showcasing comparable or superior performance to existing solutions without extensive configuration. Lastly, LLMs can significantly enhance the annotation of viral protein sequences, enabling new biological discoveries and expanding the understanding of viral protein function in microbial communities.
Is there nay f=study on the fermentation of seaweed that was nor successful?
5 answers
Studies on seaweed fermentation have shown successful outcomes in various aspects. For instance, research has optimized biological processing methods using lactic acid bacteria for the fermentation of seaweeds like Gracilaria gracilis, resulting in new seaweed-based food prototypes with improved nutritional value and safety standards. Similarly, investigations on the fermentation of brown seaweed Alaria esculenta have demonstrated the ability of lactic acid bacteria consortium to effectively ferment carbohydrates present in the seaweed, producing lactic acid as the main metabolite and enhancing its application in food product development. Additionally, studies have explored the synthesis of lactic acid through fermentation using Lactobacillus plantarum with seaweed substrates, showcasing the potential for lactic acid production from seaweed sources. Overall, the existing research indicates successful fermentation processes with beneficial outcomes.
What are the key nutrients required for the optimal growth and development of Black Soldier Fly larvae?
5 answers
Black Soldier Fly (BSF) larvae require specific nutrients for optimal growth and development. Research indicates that a balanced diet rich in macro- and micronutrients is crucial. The larvae benefit from substrates containing fatty acids with more than 18 carbons to produce high-quality oil. Additionally, the larvae's diet should consist of a suitable protein-to-carbohydrate ratio, with an optimal ratio of 1:1 for various life-history traits and body composition linked to fitness. Furthermore, providing carbohydrates like honey and proteins from sources like Spirulina and Chlorella powder can enhance female fecundity, egg production, and longevity. Therefore, a diet rich in fatty acids, balanced protein-to-carbohydrate ratio, and specific carbohydrate and protein sources are essential for the optimal growth and development of Black Soldier Fly larvae.
What is serious Game Mechanics?
10 answers
Serious Game Mechanics (SGMs) are the foundational elements that define the structure, rules, objectives, and interactive components of serious games, distinguishing them from traditional video games by their purposeful design aimed at achieving specific, non-entertainment objectives such as education, training, health improvement, or social change. These mechanics are meticulously crafted to balance educational content and gameplay in a way that engages players while achieving the desired learning outcomes or behavioral changes. SGMs are often designed around the concept of translating learning goals or practices into gameplay elements that serve an instructional purpose alongside entertainment, ensuring that players not only enjoy the game but also absorb the intended knowledge or skills. This translation is crucial for the effectiveness of serious games in educational settings, where engagement and retention are key to learning success. For instance, in the context of sustainability, SGMs have been shown to significantly increase knowledge, value-in-behavior, and sustainable behavioral intentions, with reward-based mechanics like badges and trophies influencing these outcomes. In therapeutic settings, SGMs are utilized to combine utility with the engaging aspects of video games to support the treatment of psychiatric pathologies, demonstrating the versatility of serious games across different fields. Moreover, SGMs are employed in the development of autonomous behaviors in virtual environments, simulating real-world scenarios for training and prediction purposes, thereby highlighting their application in preparing individuals for natural phenomena and emergencies. SGMs also play a crucial role in professional development and workplace training, where gamification techniques are applied to enhance recruitment, retention, and performance by leveraging the motivational aspects of gaming. Furthermore, in the realm of software engineering education, SGMs are instrumental in teaching Agile Methods, providing a practical and engaging way to experience and understand complex concepts. In healthcare, specifically for stroke rehabilitation, SGMs are designed to assess and train motor functions through stages that mimic clinical assessments, demonstrating their potential in providing effective, engaging, and scalable solutions for long-term care. This multifaceted application across various domains underscores the critical role of SGMs in achieving serious games' objectives, making them a powerful tool for education, training, and beyond.
What factors influence the growth of the ready-to-drink coffee market?
5 answers
The growth of the ready-to-drink coffee market is influenced by various factors. Factors such as consumer preferences among different generations, marketing strategies, technological advancements, and industrial cluster development play crucial roles. Consumer behavior, including preferences for cold brewed coffee, socializing in coffee shops, and utilizing delivery services, impacts market growth. Additionally, innovative technologies like cold plasma treatment can enhance aroma profiles, making specialty or gourmet ready-to-drink coffees more appealing to consumers. Moreover, effective marketing strategies focusing on product quality, advertising, and product development contribute significantly to market expansion. Furthermore, the development of industrial clusters in coffee-producing regions can provide opportunities for growth by leveraging local resources and addressing challenges like limited market access and inconsistent product quality.
Whats the treatments for contaminated water with herbicide sulfentrazone?
5 answers
Remediation of water contaminated with the herbicide sulfentrazone can be achieved through various techniques. Phytoremediation using plants like Canavalia ensiformis and Crotalaria juncea has shown promise in decontaminating soils treated with sulfentrazone. Additionally, advanced oxidation processes (AOPs) such as photocatalysis, electrochemical oxidation, and photo-electrocatalysis have been effective in treating water polluted with herbicides like glyphosate, which is similar to sulfentrazone in terms of remediation needs. Furthermore, the UV/persulfate (PS) process has demonstrated high efficiency in degrading herbicides like atrazine, indicating its potential for treating water contaminated with sulfentrazone. These methods offer a range of options for effectively treating water contaminated with herbicide sulfentrazone, providing solutions for environmental and human health concerns.
How does the choice of electrolyte affect the performance of screen printed carbon electrodes in chronoamperometry?
5 answers
The choice of electrolyte significantly impacts the performance of screen-printed carbon electrodes in chronoamperometry. Different electrolytes, such as phosphate buffer solutions containing iron/ferrite, 0.01 M Phosphate Buffered Saline (PBS) solution, and a phosphate buffer solution (PBS), have been utilized in various studies to enhance electrode properties. Electrolytes play a crucial role in activating the electrodes, improving electrochemical performance, and increasing sensitivity to analyte detection. For instance, the use of phosphate buffer solutions containing iron/ferrite in cyclic voltammetry activation methods has shown improved electrochemical performance and reproducibility. Additionally, the selection of an appropriate electrolyte solution has been shown to avoid damage to the electrodes and enhance conductivity, as observed in different experimental setups involving various electrolytes.
What are the current trends and innovations in the ready-to-drink coffee market?
5 answers
Current trends and innovations in the ready-to-drink coffee market include naturalness, sustainability, health, multisensory experience, convenience, digitalization, and individualization. Additionally, consumer preferences for coffee paired with specific foods like chocolate wafers, coconut biscuits, and potato chips have been identified through sensory testing. Furthermore, advancements in sensory characterization methodologies such as check-all-that-apply (CATA), flash profile (FP), and free listing (FL) have been introduced as alternatives to conventional descriptive analysis (DA) for understanding consumer perceptions of ready-to-drink coffee beverages. Moreover, innovative approaches like applying cold plasma to modify the aroma of ready-to-drink coffee have been explored to enhance sensory attributes and create specialty or gourmet coffee products.
How and what extent does Social Identity Theory influence purchase behavior?
5 answers
Social Identity Theory significantly influences purchase behavior by shaping consumer engagement and decision-making processes.This theory posits that individuals define themselves based on group affiliations, impacting their behaviors accordingly.In the context of consumer behavior, social identity plays a crucial role in influencing purchase intentions through influencer behaviors, especially among women who are more sensitive to such influences.Moreover, the cognitive, affective, and evaluative dimensions of social identity have varying effects on consumer use and purchase behaviors, with the affective dimension influencing use behavior and the evaluative dimension having a stronger impact on purchase behavior.Understanding and leveraging social identity can enhance marketing effectiveness by tailoring messages to group memberships and addressing different dimensions of identity to drive desired consumer behaviors.
How can Establishing Clear Boundaries prevent "going native" dilemmas in research?
5 answers
Establishing clear boundaries is crucial in preventing "going native" dilemmas in research. Researchers often find themselves blurring boundaries when engaging with participants, potentially assuming roles beyond that of a researcher, such as therapists or activists. By clearly defining the scope of their roles and research objectives, researchers can maintain a professional distance and avoid becoming too immersed in the subjects' world, thus mitigating the risk of losing objectivity and compromising the research integrity. This practice also helps in distinguishing between personal experiences and professional responsibilities, reducing the chances of dilemmas related to disclosure and double membership. Therefore, establishing and maintaining clear boundaries is essential for researchers to uphold ethical standards and ensure the validity and reliability of their research findings.
What are the specific mechanisms through which FDI-induced technology spillover occurs?
10 answers
Foreign Direct Investment (FDI) plays a pivotal role in facilitating technology spillover to host countries, occurring through various specific mechanisms. One primary channel is through the direct impact of foreign investment on business efficiency, where foreign investment creates a positive spillover effect for local enterprises, enhancing their competitiveness and efficiency. The geographical proximity of firms significantly influences the technological spillover effects of FDI, with closer firms experiencing higher innovation quality due to easier access to new technologies and practices. The position in the supply chain also determines the extent of FDI spillovers, where local suppliers gain productivity benefits from their connections with foreign firms, although this can sometimes lead to internalization of benefits by foreign affiliates without broader social returns. Patent citations have been identified as a direct measure of technological flows across firms, indicating that technological spillovers from FDI may take years to materialize but have a positive impact on the host country's technological landscape, especially in South East Asian economies. In Malaysia, the presence and extent of FDI-induced spillover benefits on national firms are contingent upon industry and firm characteristics, suggesting that spillovers are more pronounced in industries with high FDI concentrations. The study on developing countries highlights the importance of absorptive capacities, such as human capital and financial development, in maximizing the benefits from FDI spillovers. In extractive industries, technology and knowledge transfer by foreign multinationals to local firms require supportive government policies that enhance local skills, supplier capacities, and research initiatives. Vietnamese enterprises' ability to innovate technologically is positively influenced by the presence of FDI enterprises, alongside factors like enterprise size, type, and R&D activities. For BRICS countries, FDI, along with trade openness, economic growth, and R&D expenditure, significantly boosts technological innovation. Lastly, the reverse technology spillover effect, where subsidiaries in host countries pass back advanced technical knowledge to the parent company, emphasizes the two-stage process of technology learning and crowding out effects, underlining the importance of the parent company's absorptive capacity.