queen size尺寸cm的問題,透過圖書和論文來找解法和答案更準確安心。 我們找到下列問答集和整理懶人包

queen size尺寸cm的問題,我們搜遍了碩博士論文和台灣出版的書籍,推薦George R. R. Martin寫的 全球限量發行!《冰與火之歌》二十週年紀念‧鐵粉珍藏寶盒(T-Shirt Size M) 和George R. R. Martin的 全球限量發行!《冰與火之歌》二十週年紀念‧鐵粉珍藏寶盒(T-Shirt Size XXL)都 可以從中找到所需的評價。

這兩本書分別來自 和所出版 。

國立中興大學 園藝學系所 張正所指導 夏秋美的 劍葉文心蘭微體繁殖 (2018),提出queen size尺寸cm關鍵因素是什麼,來自於劍葉文心蘭、組織培養、葉片培養、芽體再生。

而第二篇論文國立臺灣科技大學 應用科技研究所 蘇威年所指導 Alemayehu Dubale Duma的 Study on High Surface Area and Anti-Corrosive Titanium Oxide Supported Platinum Catalyst towards Oxygen Reduction Reaction for Fuel Cell Applications (2017),提出因為有 ORR、SMSI、d-band vacancies、intermetallic compound、Ti4O7、PEMFCs的重點而找出了 queen size尺寸cm的解答。

接下來讓我們看這些論文和書籍都說些什麼吧:

除了queen size尺寸cm,大家也想知道這些:

全球限量發行!《冰與火之歌》二十週年紀念‧鐵粉珍藏寶盒(T-Shirt Size M)

為了解決queen size尺寸cm的問題,作者George R. R. Martin 這樣論述:

【冰與火之歌20週年紀念‧鐵粉珍藏寶盒】 全球限量   博客來全台獨家販售   線上漫博會限定 《冰與火之歌》首部曲權力遊戲20週年紀念‧隆重推出!     HBO與作者George R. R. Martin正式授權   國際神人級出版社Random House榮譽出品   內容商品總市值約新台幣1萬1千元!   ---線上漫博會限定推薦---     《冰與火之歌》是本世紀最成功的奇幻史詩鉅作,而HBO改拍的精緻影集,更是風靡全球,並且抱回全球57座以上重要獎項!在首部曲《權力遊戲》出版20週年之際,HBO與作者喬治R.R.馬汀正式授權,由國際神人級出版社Random House榮

譽發行,推出這部氣勢磅礡、絕無僅有的鐵粉珍藏寶盒─     這組《冰與火之歌鐵粉珍藏寶盒》是全球限量發行的收藏品,每組皆有獨立編號,盒中包含多項獨家紀念品,更重要的是,每一樣收藏物件的委託製作廠商,都是該領域達人,包含影視周邊製作專家Insight Editions、精緻模型界的佼佼者Dark Swords等等,甚至有HBO冰與火之歌影集中仿真的特製復古文件,與高質感彩繪絲製地圖,是前所未見的厲害收藏!     如此市面少見的珍稀商品,博客來特別談得台灣獨家販售,在線上漫博展中驚喜推出!數量極為有限,僅此一次機會,誠心推薦給《冰與火之歌》多年的忠實讀者與癡心粉絲!     全球限量獨立編號《冰

與火之歌鐵粉珍藏寶盒》總市值約新台幣1萬1千元!   內容包含多項獨有與精選紀念商品:     ◆ 寶盒獨有|冰與火之歌首部曲《權力遊戲》20週年紀念彩繪插畫珍藏版金邊精裝書,市價新台幣1,750元   ◆ 寶盒獨有|HBO授權獨家T-shirt,圖案為日落帝國世界與各大家族印記,100%純棉材質,市價新台幣約873元,尺寸共有5種(S-XXL),每種皆限量,且因收藏性質無法提供換貨,敬請特別留意。此套組T-shirt為尺寸M,詳細規格請見下方表格說明。   ◆ 寶盒獨有|鹿家國王勞勃‧拜拉席恩HBO影集仿真封蠟遺囑(寶盒特製專屬,無價)   ◆ 冰與火之歌世界專有語言─多斯拉奇語(D

othraki)為期一年線上課程,由HBO影集幕後合作之語言學家正式推出完整語系課程,市價新台幣1,050 元   ◆ 冰與火之歌『無面者』硬幣以及故事中過世要角的精緻紀念金屬幣珍藏組,首度發行,全組共7枚收藏幣,正反面皆匠藝細緻,市面定價2,450元   ◆ 冰與火之歌專屬桌上遊戲(Fantasy Flight出品),包含詳盡遊戲規則與典故出處,市面定價新台幣1,398元   ◆ 冰與火之歌家徽盾牌燈飾(Kurt Adler出品),市面定價新台幣875元   ◆ 寶盒獨有|瓊恩‧雪諾與『龍后』丹妮莉絲精緻模型(Dark Swords出品),市面售價約900元(價格參考:Dark Sw

ords等級相近商品市值)   ◆ 寶盒獨有|冰與火之歌學士精裝燙金壓紋手札(Insight Editions設計製作),市面售價約803元(價格參考:Insight Editions等級相近商品市值)   ◆ 寶盒獨有|冰與火之歌『君臨城』大尺寸絲製地圖(換算公分60 cm X 90cm),市面售價約新台幣875~1,050元(價格參考:HBO官方布製週邊商品)   ◆ 寶盒獨有|印製精美的獨立編號收藏盒,印有作者姓名縮寫GRRM紋樣(寶盒特製專屬,無價)   冰與火之歌‧寶盒獨有T-shirt尺寸說明   標示位置 S M L XL XXL 誤差值

1 胸圍(袖孔以下) 45.7 50.8 55.9 61.0 66.0 2.5 2 身長 71.1 73.7 77.5 80.0 82.6 2.5 3 領圍 17.1 17.8 18.1 18.4 19.1 1.3 4 肩寬 40.6 45.7 50.8 55.9 61.0 2.5   標示單位:公分cm

                In celebration of the 20th anniversary of the publication of A Game of Thrones, Random House, in partnership with George R. R. Martin and HBO, is proud to present the George R. R. Martin A Song of Ice and Fire Box.     This Limited Edition includes:  

  Exclusive book: Collectible 20th anniversary illustrated edition of A Game of Thrones bound in eco-trim fiber, featuring gilded edged paper, color illustrations, color endpaper maps, and ribbon marker   Exclusive HBO Game of Thrones t-shirt, featuring map of Westeros and sigils   Exclusive reprodu

ction of Robert Baratheon’s will from the HBO series   Living Language Dothraki online course   Iron Coin of the Faceless Man from Shire Post Mint   Dead Man Set of coins (previously unreleased) from Shire Post Mint   A Game of Thrones: The Card Game with exclusive card from Fantasy Flight   Holiday

shield lights from Kurt Adler   Exclusive Lord Commander Jon Snow and Queen Daenerys miniatures from Dark Swords   Exclusive Maester’s journal from Insight Editions   Exclusive silk map of King’s Landing (24” x 36”)   Exclusive, keepsake printed box with GRRM insignia, individually numbered   特別收錄

─精緻金屬錢幣收藏組Shire Post官方詳細介紹:     All Men Must Die   Death comes to all men in Westeros. This premium collection of coins features characters whose deaths we have witnessed. Many were great and terrible men—some were just boys. Spoilers! The packaging contains information on how each character meets t

heir end—not for the faint of heart!     This Coins Collection Includes:   The Iron Coin of the Faceless Man   This coin denotes association with the organization of the Faceless Men. Worshippers of the Many-Faced God, the Faceless Men are a guild of assassins from the Free City of Braavos who see

themselves as servants of death who will bestow the gift of death as an end to suffering. The obverse of the coin depicts a hooded figure with an indistinct face. Depending on the light, he may seem to change in appearance.     Eddard Stark Half-Groat   Eddard "Ned" Stark was head of House Stark and

Warden of the North. This coin was struck for distribution within the North. It features Ned uncrowned, in subservience to the Iron Throne, with the direwolf sigil of House Stark on the reverse. The Half-Groat denomination is worth 2 copper Pennies.     Robb Stark Half-Dragon   Robb Stark, son of E

ddard, rebelled against the Iron Throne after Robert and Eddard's deaths. He proclaimed himself King in the North and fought for independence. He is shown with his direwolf Grey Wind.     Joffrey Baratheon Golden Dragon   Joffrey Baratheon was king on the Iron Throne after his father, Robert Barathe

on. Joffrey's reign incited multiple rebellions throughout Westeros culminating in The War of the Five Kings. He was known for his cruelty and brashness. The coin reverse features the stag and the lion, the sigils of Joffrey's parent houses, and "Oldtown", where the coin was minted.     Oberyn Marte

ll Half-Dragon   Oberyn Nymeros Martell, the Red Viper, is a skilled fighter, scholar, and diplomat. He is the brother of Doran and Elia. He plotted against the Lannisters for years after the murder of Elia during Robert's Rebellion.     Tywin Lannister Half-Dragon   Tywin Lannister is head of House

Lannister, one of the most powerful lords in Westeros, and father to Jamie, Cersei and Tyrion Lannister. Although ruthless, Tywin is calculating and politically savvy, and House Lannister has become immensely powerful and respected under his leadership. These coins were minted in the Westerlands wi

th Tywin as Warden of the West.     Walder Frey Penny   Walder Frey is the Lord of the Crossing and head of House Frey. He gained his alias of "The Late" Lord Frey during Robert's Rebellion when his troops arrived to the Battle of the Trident after the rebels had already won. After violating the sac

red notion of guest right at the infamous Red Wedding, Walder became one of the most despised men in Westeros, even by his allies.   The coins in this set from the world of George R. R. Martin are struck from solid brass, copper and iron, measure 2.1 to 2.9 cm in diameter, and weigh 2.9 to 11 grams

. Coin artwork by Tom Maringer, Woody Maringer, Joe Paonessa, Greg Franck-Weiby, Stan Peterson and Ron Landis.   The set contains coins treated to look as if they have been handled and circulated within their world. This process is done by hand, and it is both an art and a science. Coloring and pat

inas will vary. No two sets are exactly the same! Coins are struck one at a time in the USA using antique machinery and traditional coining techniques. A colorful description is included with history and facts about the coin.

劍葉文心蘭微體繁殖

為了解決queen size尺寸cm的問題,作者夏秋美 這樣論述:

劍葉文心蘭屬的物種被稱為文心蘭組中的Variegata文心蘭與equitant (重疊的)文心蘭。該物種原生於加勒比海地區,具較短的幼年期。雖然其作為雜交育種的歷史較短,但育種家在近年獲得了相當重要的進展,其雜交種具有令人驚豔多變的花色,且容易栽培、迷你尺寸及對光度有廣泛適應能力之特點。近年市場對新產品的需求正快速的成長,因此需要提供更多樣及更高品質種苗,如此能使劍葉文心蘭成為具有潛力的蘭科作物。 為了發展更廣的商業潛力用途,本研究聚焦於劍葉文心蘭微體繁殖技術。微體繁殖的研究目標為發展一有效的組織培養系統,藉由培養劍葉文心蘭的葉片片段以及植物生長調節劑的處理進行PLBs誘導。在最初的試驗中,

莖、葉及根被用來進行誘導測試,結果顯示葉片為最佳的PLBs誘導培殖體。此外,針對內部因子如不同株高、不同節位上之葉片、葉片不同部位皆被利用為培殖材料進行實驗。結果顯示1‒2 公分的的植株在2 mg/L BA、0.5 mg/L NAA及4 mg/L BA、0.5 mg/L NAA 之組合擁有最佳的PLBs誘導率。而培養於MS (modified MS medium)配方添加4 mg/L BA、0.5 mg/L NAA的葉片成功誘導的PLBs(16.7%)僅在內部葉片(第1至第3片葉)形成。本試驗也將葉片區分為頂部、中部、基部部位進行培養,約18% 1‒2公分高植株的葉片基部培殖體被誘導出PLBs

。另外,試驗顯示植物生長調節劑是有效的外部因子,不同種類及濃度的細胞分裂素在本研究中被使用。葉片培殖體培養於MS配方添加1 mg/L BA或1 mg/L TDZ 16週後的處理擁有最佳的PLBs誘導率 (16.7%) 。而添加4 mg/L BA之處理擁PLBs生成數目達3.0個為最佳。結果顯示不同種類細胞分裂素對PLBs的誘導造成顯著之影響。混合使用BA及NAA的研究中顯示添加NAA能增加PLBs誘導率,經過12週之培養,MS培養基添加4 mg/L BA以及0.5 mg/L NAA的處理擁有28%誘導率為最高。而由組織學切片可看出由葉片培殖體誘導之PLBs並沒有與培殖體具相連之維管束。本研究第

二個目標為PLB增殖與營養芽增殖方法。其中PLB增殖進行三個試驗,分別為PLB的大小、PLB切割型態以及PLB群聚培養數目,其中PLB的大小僅對增殖率有些微的影響。中間尺寸(1‒2 mm)的PLB在培養2-6週時有最佳的效果。而PLB切割型態分為PLB刻傷、切除上部以及切除下部的處理,經過6週的培養後,切除下部的PLB約有40%培殖體能成功進行增殖,而PLB生成數量則為刻傷處理效果最佳達3.5 個PLBs。PLB群聚數目則觀察到增殖率並不高,多數的PLBs形成了莖而不是再增殖新的PLBs。營養芽增殖的方法是利用葉片培養而來的材料,試驗利用不同光強度觀察芽體增殖的影響,經過12週的培養,較高的增

殖率及較正常的芽體型態為放置於弱光環境之處理。本研究建立了一簡單並可短時間內獲得最多PLBs數目及增殖效果的系統,培殖體也可成功再生為完整植株。而後續栽培殖株可藉由涼溫下持續處理進行花梗的誘導。最後,所有的步驟可以簡易地應用於大量繁殖’Snow Fairy’劍葉文心蘭。

全球限量發行!《冰與火之歌》二十週年紀念‧鐵粉珍藏寶盒(T-Shirt Size XXL)

為了解決queen size尺寸cm的問題,作者George R. R. Martin 這樣論述:

【冰與火之歌20週年紀念‧鐵粉珍藏寶盒】 全球限量   博客來全台獨家販售   線上漫博會限定 《冰與火之歌》首部曲權力遊戲20週年紀念‧隆重推出!     HBO與作者George R. R. Martin正式授權   國際神人級出版社Random House榮譽出品   內容商品總市值約新台幣1萬1千元!   ---線上漫博會限定推薦---     《冰與火之歌》是本世紀最成功的奇幻史詩鉅作,而HBO改拍的精緻影集,更是風靡全球,並且抱回全球57座以上重要獎項!在首部曲《權力遊戲》出版20週年之際,HBO與作者喬治R.R.馬汀正式授權,由國際神人級出版社Random House榮

譽發行,推出這部氣勢磅礡、絕無僅有的鐵粉珍藏寶盒─     這組《冰與火之歌鐵粉珍藏寶盒》是全球限量發行的收藏品,每組皆有獨立編號,盒中包含多項獨家紀念品,更重要的是,每一樣收藏物件的委託製作廠商,都是該領域達人,包含影視周邊製作專家Insight Editions、精緻模型界的佼佼者Dark Swords等等,甚至有HBO冰與火之歌影集中仿真的特製復古文件,與高質感彩繪絲製地圖,是前所未見的厲害收藏!     如此市面少見的珍稀商品,博客來特別談得台灣獨家販售,在線上漫博展中驚喜推出!數量極為有限,僅此一次機會,誠心推薦給《冰與火之歌》多年的忠實讀者與癡心粉絲!     全球限量獨立編號《冰

與火之歌鐵粉珍藏寶盒》總市值約新台幣1萬1千元!   內容包含多項獨有與精選紀念商品:     ◆ 寶盒獨有|冰與火之歌首部曲《權力遊戲》20週年紀念彩繪插畫珍藏版金邊精裝書,市價新台幣1,750元   ◆ 寶盒獨有|HBO授權獨家T-shirt,圖案為日落帝國世界與各大家族印記,100%純棉材質,市價新台幣約873元,尺寸共有5種(S-XXL),每種皆限量,且因收藏性質無法提供換貨,敬請特別留意。此套組T-shirt為尺寸XXL,詳細規格請見下方表格說明。   ◆ 寶盒獨有|鹿家國王勞勃‧拜拉席恩HBO影集仿真封蠟遺囑(寶盒特製專屬,無價)   ◆ 冰與火之歌世界專有語言─多斯拉奇語

(Dothraki)為期一年線上課程,由HBO影集幕後合作之語言學家正式推出完整語系課程,市價新台幣1,050 元   ◆ 冰與火之歌『無面者』硬幣以及故事中過世要角的精緻紀念金屬幣珍藏組,首度發行,全組共7枚收藏幣,正反面皆匠藝細緻,市面定價2,450元   ◆ 冰與火之歌專屬桌上遊戲(Fantasy Flight出品),包含詳盡遊戲規則與典故出處,市面定價新台幣1,398元   ◆ 冰與火之歌家徽盾牌燈飾(Kurt Adler出品),市面定價新台幣875元   ◆ 寶盒獨有|瓊恩‧雪諾與『龍后』丹妮莉絲精緻模型(Dark Swords出品),市面售價約900元(價格參考:Dark

Swords等級相近商品市值)   ◆ 寶盒獨有|冰與火之歌學士精裝燙金壓紋手札(Insight Editions設計製作),市面售價約803元(價格參考:Insight Editions等級相近商品市值)   ◆ 寶盒獨有|冰與火之歌『君臨城』大尺寸絲製地圖(換算公分60 cm X 90cm),市面售價約新台幣875~1,050元(價格參考:HBO官方布製週邊商品)   ◆ 寶盒獨有|印製精美的獨立編號收藏盒,印有作者姓名縮寫GRRM紋樣(寶盒特製專屬,無價)   冰與火之歌‧寶盒獨有T-shirt尺寸說明   標示位置 S M L XL XXL 誤

差值 1 胸圍(袖孔以下) 45.7 50.8 55.9 61.0 66.0 2.5 2 身長 71.1 73.7 77.5 80.0 82.6 2.5 3 領圍 17.1 17.8 18.1 18.4 19.1 1.3 4 肩寬 40.6 45.7 50.8 55.9 61.0 2.5   標示單位:公分cm

                In celebration of the 20th anniversary of the publication of A Game of Thrones, Random House, in partnership with George R. R. Martin and HBO, is proud to present the George R. R. Martin A Song of Ice and Fire Box.     This Limited Edition includes:

    Exclusive book: Collectible 20th anniversary illustrated edition of A Game of Thrones bound in eco-trim fiber, featuring gilded edged paper, color illustrations, color endpaper maps, and ribbon marker   Exclusive HBO Game of Thrones t-shirt, featuring map of Westeros and sigils   Exclusive repro

duction of Robert Baratheon’s will from the HBO series   Living Language Dothraki online course   Iron Coin of the Faceless Man from Shire Post Mint   Dead Man Set of coins (previously unreleased) from Shire Post Mint   A Game of Thrones: The Card Game with exclusive card from Fantasy Flight   Holid

ay shield lights from Kurt Adler   Exclusive Lord Commander Jon Snow and Queen Daenerys miniatures from Dark Swords   Exclusive Maester’s journal from Insight Editions   Exclusive silk map of King’s Landing (24” x 36”)   Exclusive, keepsake printed box with GRRM insignia, individually numbered   特別

收錄─精緻金屬錢幣收藏組Shire Post官方詳細介紹:     All Men Must Die   Death comes to all men in Westeros. This premium collection of coins features characters whose deaths we have witnessed. Many were great and terrible men—some were just boys. Spoilers! The packaging contains information on how each character meets

their end—not for the faint of heart!     This Coins Collection Includes:   The Iron Coin of the Faceless Man   This coin denotes association with the organization of the Faceless Men. Worshippers of the Many-Faced God, the Faceless Men are a guild of assassins from the Free City of Braavos who se

e themselves as servants of death who will bestow the gift of death as an end to suffering. The obverse of the coin depicts a hooded figure with an indistinct face. Depending on the light, he may seem to change in appearance.     Eddard Stark Half-Groat   Eddard "Ned" Stark was head of House Stark a

nd Warden of the North. This coin was struck for distribution within the North. It features Ned uncrowned, in subservience to the Iron Throne, with the direwolf sigil of House Stark on the reverse. The Half-Groat denomination is worth 2 copper Pennies.     Robb Stark Half-Dragon   Robb Stark, son of

Eddard, rebelled against the Iron Throne after Robert and Eddard's deaths. He proclaimed himself King in the North and fought for independence. He is shown with his direwolf Grey Wind.     Joffrey Baratheon Golden Dragon   Joffrey Baratheon was king on the Iron Throne after his father, Robert Barat

heon. Joffrey's reign incited multiple rebellions throughout Westeros culminating in The War of the Five Kings. He was known for his cruelty and brashness. The coin reverse features the stag and the lion, the sigils of Joffrey's parent houses, and "Oldtown", where the coin was minted.     Oberyn Mar

tell Half-Dragon   Oberyn Nymeros Martell, the Red Viper, is a skilled fighter, scholar, and diplomat. He is the brother of Doran and Elia. He plotted against the Lannisters for years after the murder of Elia during Robert's Rebellion.     Tywin Lannister Half-Dragon   Tywin Lannister is head of Hou

se Lannister, one of the most powerful lords in Westeros, and father to Jamie, Cersei and Tyrion Lannister. Although ruthless, Tywin is calculating and politically savvy, and House Lannister has become immensely powerful and respected under his leadership. These coins were minted in the Westerlands

with Tywin as Warden of the West.     Walder Frey Penny   Walder Frey is the Lord of the Crossing and head of House Frey. He gained his alias of "The Late" Lord Frey during Robert's Rebellion when his troops arrived to the Battle of the Trident after the rebels had already won. After violating the s

acred notion of guest right at the infamous Red Wedding, Walder became one of the most despised men in Westeros, even by his allies.   The coins in this set from the world of George R. R. Martin are struck from solid brass, copper and iron, measure 2.1 to 2.9 cm in diameter, and weigh 2.9 to 11 gra

ms. Coin artwork by Tom Maringer, Woody Maringer, Joe Paonessa, Greg Franck-Weiby, Stan Peterson and Ron Landis.   The set contains coins treated to look as if they have been handled and circulated within their world. This process is done by hand, and it is both an art and a science. Coloring and p

atinas will vary. No two sets are exactly the same! Coins are struck one at a time in the USA using antique machinery and traditional coining techniques. A colorful description is included with history and facts about the coin.

Study on High Surface Area and Anti-Corrosive Titanium Oxide Supported Platinum Catalyst towards Oxygen Reduction Reaction for Fuel Cell Applications

為了解決queen size尺寸cm的問題,作者Alemayehu Dubale Duma 這樣論述:

如何將催化劑及其載體設計結合,使燃料電池鉑催化劑的電催化活性和耐久性可以獲得改善,並顯著節省成本,可視為作為探索取代碳質載體材料的部分努力。本論文主要是Magnéli氧化物擔載鉑催化劑的設計,合成和表徵工作。這對於延長質子交換膜燃料電池(PEMFC)使用壽命和保證可靠性,以及降低總生命週期的使用成本都具有重要意義。適當調控Magnéli氧化物載體具備相對高的導電性和高表面積,後者的特徵可讓鉑觸媒均勻分散和良好錨定於其載體上。論文的第一部分工作強調“開發應用於氧氣還原反應之高比表面積Ti4O7載體材料”。分別使用PEG-400和葡萄糖還原前驅物,即乙醇鈦(IV)和氧化鈦(銳鈦礦)。結果表明:前

者可以成功製備Ti4O7純相,而後者仍以金紅石為主。高比表面積達到135-160平方米/克。然而,因無定形碳仍殘留在所製備的Ti4O7中(約6-8重量%),限制了其在氧氣還原反應的實際應用。同時,在經過冷凍乾燥技術和氫還原之前先用食鹽水處理奈米結構二氧化鈦,則所獲得Ti4O7的表面積卻相當低(2 m2/g),仍不合適用於氧氣還原反應。因此,需要一種新的方法來解決此困境,以便在碳熱還原過程中,碳含量的增加和追求高表面積間的困境可以得到調和,使觸媒的催化活性和耐久性不致受到影響。第二部分的工作是第一部分的直接延伸,但採取了不同的方法-“用於氧還原反應的抗腐蝕性二氧化鈦負載的有序金屬間鉑催化劑”。主

要聚焦在氧化鈦載體上,原位形成結構有序鉑金屬間化合物。透過一個簡單的策略: 使用過硫酸銨(APS)作為氧化劑,經簡單的改質氧化聚合技術,利用聚苯胺在二氧化鈦上均勻沉積Pt。如此,還原TiO2載體和鉑奈米顆粒之間的強金屬載體相互作用(SMSI),方能被適當運用於電催化反應。電化學測量結果顯示,在相同鉑(Pt)載量的情況下,與現今常見的商用Pt/C(JM 20)觸媒相比,負載在氧化物上的鉑催化劑具有更好的催化活性和耐久性。鑒於觸媒表面的活性位址會因為吸附其他分子而導致失活的現象,實驗所觀察到活性和穩定性的提升,可歸因於相鄰鉑原子之間的距離和晶格參數的減小,幫助這些吸附分子容易脫附,釋放更多的活性位

址。第三部分為“氯化鈉介導有序金屬間鉑催化劑負載在Magnéli相氧化鈦於氧氣還原反應用”。這個部分利用即通過使材料尺寸奈米化,來提高單位體積表面原子數量。該策略不僅增加了表面能,而且降低了相變溫度,並且可在相對較低的溫度下使高溫相穩定。與之前需要高溫和更長反應時間的方法相比,本研究添加氯化鈉,在製備上有序的金屬間化合物Pt3Ti,以及Magnéli相氧化物如Ti3O5,確實可有效將降低處理溫度與縮短時間。但代價是會形成較大的粒子。因此,可透過控制升溫模式來兼顧相轉變與粒子成長。在整個過程中,通過變化處理溫度及碳前驅物和銳鈦礦的比例,優化相關參數,同時亦進行金屬合金和Magnélii相氧化物的

特徵鑑定。電催化下碳擔載的鉑觸媒其電化學活性面積亦快速降低,但結構有序的金屬化合物在嚴苛的酸性環境下,可以表現出更好的耐受性。它們的電化學性能耐久性表現出顯著的改善,因此,極具潛力作為氧氣還原反應的非碳載體觸媒。最後,論文的工作提供了製備貴金屬與非貴金屬合金化,以形成有序和耐腐蝕材料的方法,可以擴展到其他應用。關鍵字: 氧氣還原反應、觸媒載體強交互作用、d-電子軌域空缺、金屬間化合物、Ti4O7、質子交換膜燃料電池