新型MOFs材料的制備及其電催化性能的研究
發(fā)布時(shí)間:2019-06-03 22:30
【摘要】:論文致力于設(shè)計(jì)合成新型的MOFs材料,并研究其對(duì)葡萄糖和雙氧水的電催化性能。主要包含以下三個(gè)研究?jī)?nèi)容:采用水熱法合成了一種Co-MOF材料{[Co_2(dcpp)(bpe)_(0.5)(H_2O)]·(bpe)_(0.5)}_n。研究發(fā)現(xiàn)該材料修飾電極對(duì)葡萄糖氧化的電催化活性較弱,這主要?dú)w因于MOFs材料自身弱的導(dǎo)電性。為增加其導(dǎo)電能力,將一定比例的乙炔黑添加到Co-MOF中構(gòu)成復(fù)合電極材料,并探討了不同乙炔黑含量的復(fù)合電極對(duì)葡萄糖的電催化性能。實(shí)驗(yàn)結(jié)果表明:當(dāng)乙炔黑含量為2%時(shí),該修飾電極對(duì)葡萄糖氧化的電催化活性最佳,對(duì)葡萄糖檢測(cè)的線性范圍為0.005~1 mM,靈敏度為1.02μA·μM-1·cm-2;此外,該修飾電極在催化葡萄糖氧化過(guò)程中表現(xiàn)出良好的抗干擾能力及長(zhǎng)期穩(wěn)定性。采用水熱法合成了新型的Cu-MOF材料{[Cu_2(bep)(ADA)_2]·H_2O}_n,研究了CuMOF及Cu-MOF與乙炔黑的復(fù)合材料在堿性環(huán)境下對(duì)雙氧水的電催化還原行為。實(shí)驗(yàn)結(jié)果表明:當(dāng)乙炔黑含量為2%時(shí),復(fù)合材料修飾電極對(duì)雙氧水還原的電催化性能最佳,在0.05~3000μM范圍內(nèi)對(duì)雙氧水檢測(cè)的靈敏度為5.56μA·μM-1·cm-2,較Cu-MOF修飾電極增加了2倍,且該修飾電極表現(xiàn)出良好的選擇性及穩(wěn)定性。通過(guò)常溫?fù)]發(fā)法制備了Co-MOF材料ZIF-67。通過(guò)浸漬、還原的方法將銀納米顆粒負(fù)載到ZIF-67空腔內(nèi)部,探究了銀負(fù)載量對(duì)葡萄糖氧化的電催化活性的影響。實(shí)驗(yàn)結(jié)果表明:當(dāng)銀負(fù)載量為0.5%時(shí),Ag(0.5%)-ZIF-67修飾電極對(duì)葡萄糖氧化的電催化活性最佳,檢測(cè)葡萄糖的線性范圍為2~1000μM,靈敏度高達(dá)1.557μA·μM-1·cm-2,且該修飾電極具有良好的抗干擾能力及長(zhǎng)期穩(wěn)定性。
[Abstract]:In this paper, a new type of MOFs material was designed and synthesized, and its electrocatalytic performance for glucose and hydrogen peroxide was studied. The main contents are as follows: a Co-MOF material {[Co_2 (dcpp) (bpe) _ (0.5) (H 鈮,
本文編號(hào):2492271
[Abstract]:In this paper, a new type of MOFs material was designed and synthesized, and its electrocatalytic performance for glucose and hydrogen peroxide was studied. The main contents are as follows: a Co-MOF material {[Co_2 (dcpp) (bpe) _ (0.5) (H 鈮,
本文編號(hào):2492271
本文鏈接:http://sikaile.net/kejilunwen/huaxue/2492271.html
最近更新
教材專著