active nickel

简明释义

活性镍

英英释义

例句

1.In the production of hydrogen, active nickel plays a crucial role as a catalyst.

在氢气的生产中，活性镍作为催化剂起着至关重要的作用。

2.The presence of active nickel in the alloy enhances its corrosion resistance.

合金中存在的活性镍增强了其耐腐蚀性。

3.The catalyst used in the reaction contained active nickel, which significantly increased the reaction rate.

反应中使用的催化剂含有活性镍，这显著提高了反应速率。

4.Researchers are studying the properties of active nickel to improve fuel cell efficiency.

研究人员正在研究活性镍的性质，以提高燃料电池的效率。

5.To achieve better results, we need to optimize the amount of active nickel in the mixture.

为了获得更好的结果，我们需要优化混合物中活性镍的含量。

作文

The term active nickel refers to a specific form of nickel that is particularly effective as a catalyst in various chemical reactions. Catalysts are substances that accelerate chemical reactions without being consumed in the process, and active nickel has gained significant attention in fields such as hydrogenation, where it facilitates the addition of hydrogen to organic compounds. This property makes active nickel an essential component in the production of margarine from vegetable oils, as well as in the synthesis of various chemicals used in pharmaceuticals and petrochemicals.One of the primary reasons for the effectiveness of active nickel as a catalyst lies in its unique surface properties. When nickel is treated or activated through specific processes, it exposes a larger surface area that enhances its reactivity. This activation can be achieved through methods such as reduction with hydrogen or by alloying with other metals. The resulting active nickel exhibits improved catalytic activity compared to its non-activated form, making it a preferred choice in industrial applications.In recent years, researchers have been exploring the potential of active nickel in sustainable energy applications, particularly in fuel cells and batteries. Fuel cells convert chemical energy directly into electrical energy, and the use of active nickel as a catalyst can significantly improve their efficiency. For instance, in alkaline fuel cells, active nickel can facilitate the oxidation of hydrogen, leading to higher power outputs and better overall performance.Moreover, the environmental benefits of using active nickel cannot be overlooked. As the world shifts towards greener technologies, the demand for efficient catalysts that can operate under mild conditions is on the rise. active nickel fits this criterion well, as it can often replace more expensive and less environmentally friendly catalysts, such as platinum, in various reactions. This not only reduces the cost of chemical processes but also minimizes the ecological footprint associated with catalyst production and disposal.Despite its advantages, there are challenges associated with the use of active nickel. One of the significant issues is its susceptibility to poisoning by certain impurities present in feedstocks. These impurities can deactivate the catalyst, leading to reduced efficiency and increased operational costs. Therefore, ongoing research is focused on developing methods to enhance the stability of active nickel and mitigate the effects of catalyst poisoning.In conclusion, active nickel plays a crucial role in modern chemistry and industrial processes. Its effectiveness as a catalyst in various reactions, combined with its potential for sustainable applications, makes it a subject of considerable interest among chemists and engineers alike. As research continues to advance our understanding of active nickel, we can expect to see even more innovative uses for this versatile material in the future, contributing to both economic and environmental sustainability.

“活性镍”这个术语指的是一种特定形式的镍，这种镍在各种化学反应中作为催化剂特别有效。催化剂是加速化学反应而不被消耗的物质，而活性镍在氢化等领域引起了广泛关注，它促进氢与有机化合物的结合。这种特性使得活性镍成为从植物油生产人造黄油以及合成制药和石油化工中使用的各种化学品的重要组成部分。活性镍作为催化剂的有效性主要归因于其独特的表面特性。当镍通过特定过程处理或激活时，它会暴露出更大的表面积，从而增强其反应性。这种激活可以通过氢还原或与其他金属合金化等方法实现。生成的活性镍相比于未激活的形式显示出更好的催化活性，使其在工业应用中成为首选。近年来，研究人员正在探索活性镍在可持续能源应用中的潜力，特别是在燃料电池和电池中。燃料电池将化学能直接转化为电能，使用活性镍作为催化剂可以显著提高其效率。例如，在碱性燃料电池中，活性镍可以促进氢的氧化，从而提高功率输出和整体性能。此外，使用活性镍的环境效益也不容忽视。随着世界向更绿色技术转型，对能够在温和条件下运行的高效催化剂的需求日益增加。活性镍很好地符合这一标准，因为它通常可以在各种反应中替代更昂贵且对环境友好性较差的催化剂，如铂。这不仅降低了化学过程的成本，还最小化了与催化剂生产和处置相关的生态足迹。尽管具有这些优势，使用活性镍仍然面临挑战。其中一个主要问题是其对某些原料中存在的杂质的毒害敏感性。这些杂质可能使催化剂失活，从而导致效率降低和运营成本增加。因此，当前的研究集中在开发增强活性镍稳定性的方法，以减轻催化剂中毒的影响。总之，活性镍在现代化学和工业过程中扮演着至关重要的角色。它在各种反应中作为催化剂的有效性，加上其在可持续应用中的潜力，使其成为化学家和工程师们极为关注的课题。随着研究不断推进我们对活性镍的理解，我们可以期待看到这种多功能材料在未来的更多创新应用，为经济和环境可持续性做出贡献。