{"id":85285,"date":"2026-02-01T13:01:39","date_gmt":"2026-02-01T07:31:39","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=85285"},"modified":"2026-02-01T16:08:12","modified_gmt":"2026-02-01T10:38:12","slug":"molybdenum-disulfide","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/molybdenum-disulfide\/","title":{"rendered":"Molybdenum Disulfide"},"content":{"rendered":"<h2><b>\u00a0Molybdenum Disulfide Latest News<\/b><\/h2>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Scientists recently developed an electronic system using molybdenum disulphide only a few atoms thick; high-energy particles pass through it without causing damage.<\/span><\/p>\n<h2><b>About Molybdenum Disulfide<\/b><\/h2>\n<ul>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Molybdenum disulfide (MoS<\/span><span style=\"font-weight: 400;\">2<\/span><span style=\"font-weight: 400;\">) is an <\/span><b>inorganic compound<\/b><span style=\"font-weight: 400;\"> made up of <\/span><b>sulfur and molybdenum.<\/b><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">It <\/span><b>exists in nature in the mineral molybdenite.\u00a0<\/b><\/li>\n<li style=\"text-align: justify;\"><b>In its bulk form<\/b><span style=\"font-weight: 400;\">, it appears as a <\/span><b>dark, shiny solid.<\/b><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">It belongs to a class of materials called <\/span><b>&#8216;transition metal dichalcogenides&#8217; (TMDCs).\u00a0<\/b>\n<ul>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Materials in this class have the chemical formula MX\u2082, where M is a transition metal atom (groups 4-12 in the periodic table) and X is a chalcogen (group 16).\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Its <\/span><b>crystals have a<\/b> <b>hexagonal layered structure<\/b><span style=\"font-weight: 400;\"> that is <\/span><b>similar to graphite.<\/b><\/li>\n<li style=\"text-align: justify;\"><b>Like most mineral salts,<\/b><span style=\"font-weight: 400;\"> MoS<\/span><span style=\"font-weight: 400;\">2<\/span><span style=\"font-weight: 400;\"> has a <\/span><b>high melting point, <\/b><span style=\"font-weight: 400;\">but it begins to sublime at a relatively low 450 \u00baC. This property is useful for purifying the compound.<\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Because of its <\/span><b>layered structure, hexagonal MoS<\/b><b>2<\/b><b>, like graphite,<\/b><span style=\"font-weight: 400;\"> is an <\/span><b>excellent solid lubricant.\u00a0<\/b>\n<ul>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">It can be <\/span><b>used as surface coatings on machine parts<\/b><span style=\"font-weight: 400;\"> (e.g., in the aerospace industry), in <\/span><b>two-stroke engines <\/b><span style=\"font-weight: 400;\">(the type used for motorcycles), and <\/span><b>in gun barrels<\/b><span style=\"font-weight: 400;\"> (to reduce friction between the bullet and the barrel).<\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Unlike graphite, MoS<\/span><span style=\"font-weight: 400;\">2<\/span><b> does not depend on adsorbed water or other vapors for its lubricant properties.\u00a0<\/b><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">It can be <\/span><b>used at temperatures as high as 350 \u00baC in oxidizing environments <\/b><span style=\"font-weight: 400;\">and up to <\/span><b>1100 \u00baC in nonoxidizing environments.\u00a0<\/b><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Its stability makes it <\/span><b>useful in high-temperature applications<\/b><span style=\"font-weight: 400;\"> in which oils and greases are not practical.<\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">MoS<\/span><span style=\"font-weight: 400;\">2<\/span><span style=\"font-weight: 400;\"> is <\/span><b>highly resistant to oxidation and corrosion<\/b><span style=\"font-weight: 400;\">, making it an <\/span><b>effective lubricant for high-humidity and saltwater environments.<\/b><\/li>\n<\/ul>\n<\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">In addition to its lubricating properties, MoS<\/span><span style=\"font-weight: 400;\">2<\/span><b> is a semiconductor. <\/b><\/li>\n<\/ul>\n<p><b>Source: <\/b><a href=\"https:\/\/epaper.thehindu.com\/ccidist-ws\/th\/th_delhi\/issues\/168852\/OPS\/GIVFH2PCE.1+GV0FH40M1.1.html\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"font-weight: 400;\">TH<\/span><\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Molybdenum disulfide (MoS\u2082) is an inorganic compound of molybdenum and sulfur, found naturally as molybdenite and classified as a TMDC. Read more about Molybdenum Disulfide, Latest News<\/p>\n","protected":false},"author":23,"featured_media":85344,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[5075,21,22,23],"class_list":{"0":"post-85285","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"tag-molybdenum-disulfide","9":"tag-prelims-pointers","10":"tag-upsc-current-affairs","11":"tag-upsc-prelims-current-affairs","12":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/85285","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=85285"}],"version-history":[{"count":4,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/85285\/revisions"}],"predecessor-version":[{"id":85343,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/85285\/revisions\/85343"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/85344"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=85285"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=85285"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=85285"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}