cobalt

简明释义

英[ˈkəʊbɔːlt]美[ˈkoʊbɔːlt]

n. [化学] 钴；钴类颜料；由钴制的深蓝色

英英释义

单词用法

同义词

反义词

例句

1.Her younger sister, Eugenie, wore a cobalt-coloured creation by British designer Vivienne Westwood.

她的小妹妹尤珍妮带了一顶英国设计师薇薇恩·韦斯特伍德的深蓝色帽子。

2.This is the basis of the albumin cobalt-binding (ACB) test.

这就是白蛋白钴结合测试（ACB测试）的基础。

3.Katanga plans to accelerate development of its copper and cobalt assets in Congo by two years.

Katanga计划将其刚果铜和钴资产的开发时间缩短两年。

4.Delicate panels of burnished gold radiate from a grey body, finishing in cobalt blue spots around the edges.

明亮的金色以灰色的身体为中心辐射成美妙的镶嵌色块，边缘是钴蓝色的小斑点。

5.Common materials for the MTJ include chromium dioxide and iron-cobalt alloys.

制作磁隧道结的通用材料有二氧化铬和铁钴合金。

6.They dissolved cobalt and phosphate in water and then zapped it with electricity through an electrode.

他们把钴和磷酸盐溶解到水溶液中，然后，通过电极对它们进行电解。

7.The artist preferred to use cobalt 钴 blue for his paintings due to its vibrant hue.

这位艺术家喜欢使用钴蓝作为他的画作，因为它的色彩鲜艳。

8.In the lab, we used cobalt 钴 salts to study their chemical properties.

在实验室，我们使用钴盐来研究它们的化学性质。

9.The battery technology has improved with the incorporation of cobalt 钴 for better energy density.

通过加入钴，电池技术得到了改善，能量密度更高。

10.Many jewelry makers choose cobalt 钴 for its durability and resistance to tarnishing.

许多珠宝制造商选择钴，因为它耐用且不易褪色。

11.The cobalt 钴 mine is one of the largest in the world, producing tons of this valuable metal.

这个钴矿是世界上最大的之一，生产大量这种贵金属。

作文

Cobalt is a fascinating element that plays a crucial role in various industries and applications. As a transition metal, it is represented by the symbol Co on the periodic table and has an atomic number of 27. The name cobalt (钴) originates from the German word 'kobold', which means goblin or evil spirit, as miners found it troublesome to extract this metal from its ores due to the presence of arsenic. Despite its challenging extraction process, cobalt has become indispensable in modern technology and manufacturing. One of the most significant uses of cobalt is in the production of rechargeable batteries, particularly lithium-ion batteries. These batteries are widely used in smartphones, laptops, and electric vehicles. The inclusion of cobalt in these batteries enhances their energy density and longevity, making them more efficient for everyday use. As the demand for electric vehicles continues to rise, so does the need for cobalt, leading to increased mining and exploration efforts in regions rich in this mineral. However, this surge in demand raises concerns about the sustainability and ethical sourcing of cobalt, particularly in countries like the Democratic Republic of Congo, where much of the world's supply is mined under conditions that can be harmful to workers and the environment.In addition to its role in batteries, cobalt is also used in the production of superalloys, which are essential for high-performance applications such as jet engines and gas turbines. These superalloys maintain their strength and stability at high temperatures, making them ideal for aerospace and power generation industries. The unique properties of cobalt allow these materials to withstand extreme conditions, contributing to advancements in technology and engineering.Moreover, cobalt is utilized in the creation of pigments for ceramics, glass, and paints. The vibrant blue color produced by cobalt compounds has been cherished for centuries, dating back to ancient civilizations that used it for decorative purposes. This application highlights the versatility of cobalt beyond industrial uses, showcasing its artistic value as well.Despite its many benefits, the mining and processing of cobalt pose environmental challenges. The extraction process can lead to soil and water contamination, affecting local ecosystems and communities. As awareness of these issues grows, there is a push for more sustainable practices in the mining industry. Companies are exploring ways to recycle cobalt from used batteries and develop alternative materials that can reduce reliance on this finite resource.In conclusion, cobalt is a vital element that impacts various facets of modern life, from the technology we use daily to the advancements in engineering and art. Understanding the significance of cobalt and its implications for society and the environment is crucial as we move towards a more sustainable future. As we continue to innovate and explore new technologies, finding a balance between the benefits of cobalt and the need for responsible sourcing will be essential for the well-being of our planet and its inhabitants.

钴是一种迷人的元素，在各个行业和应用中发挥着至关重要的作用。作为一种过渡金属，它在周期表上的符号为Co，原子序数为27。cobalt(钴)这个名字源于德语单词'kobold'，意思是小妖精或恶灵，因为矿工发现从其矿石中提取这种金属非常麻烦，因其含有砷。尽管其提取过程充满挑战，但cobalt已经成为现代技术和制造业中不可或缺的一部分。cobalt最重要的用途之一是生产可充电电池，特别是锂离子电池。这些电池广泛用于智能手机、笔记本电脑和电动汽车。将cobalt纳入这些电池中可以提高它们的能量密度和使用寿命，使其在日常使用中更加高效。随着电动汽车需求的不断上升，对cobalt的需求也在增加，这导致在富含这种矿物的地区加大了开采和勘探的力度。然而，这种需求的激增引发了对可持续性和道德采购的担忧，尤其是在刚果民主共和国等国家，在那里，世界大部分供应的cobalt在对工人和环境可能有害的条件下被开采。除了在电池中的作用外，cobalt还用于生产超级合金，这些合金对于喷气发动机和燃气涡轮等高性能应用至关重要。这些超级合金能够在高温下保持强度和稳定性，使其成为航空航天和发电行业的理想材料。cobalt的独特属性使这些材料能够承受极端条件，推动了技术和工程的进步。此外，cobalt还用于陶瓷、玻璃和油漆的颜料生产。由cobalt化合物产生的鲜艳蓝色已被古代文明所珍视，用于装饰用途。这一应用突显了cobalt在工业用途之外的多样性，展示了其艺术价值。尽管有许多好处，但cobalt的开采和加工也带来了环境挑战。提取过程可能导致土壤和水源污染，影响当地生态系统和社区。随着人们对这些问题的关注加大，矿业行业正在推动更可持续的做法。公司正在探索从废旧电池中回收cobalt的方法，并开发替代材料，以减少对这一有限资源的依赖。总之，cobalt是一个重要的元素，影响着现代生活的各个方面，从我们日常使用的技术到工程和艺术的进步。理解cobalt的重要性及其对社会和环境的影响，对于我们迈向更可持续的未来至关重要。在我们继续创新和探索新技术的同时，找到cobalt的好处与负责任采购之间的平衡，将对我们星球及其居民的福祉至关重要。