公开(公告)号：KR1020120049481A

公开(公告)日：2012-05-17

申请号：KR1020100110745

申请日：2010-11-09

Applicant: 성균관대학교산학협력단

Inventor： 권영욱 ,  장지훈 ,  이은직

IPC: B82B1/00 ,  B01J37/34 ,  B82B3/00

CPC classification number: B01J23/52 ,  B01J35/023 ,  B01J37/343 ,  B22F1/0018 ,  B22F2301/255 ,  B82Y40/00

Abstract: PURPOSE: A catalytic activity increase method of inactive nanoparticle is provided to enhance electrocatalyst activity of gold nanoparticle for hydrogen oxidation reaction without growth of the nanoparticle. CONSTITUTION: A catalytic activity increase method of inactive nanoparticle comprises a step of ultrasonication of a gold nanoparticle. A gold nanoparticle has negative peaks within a range of -0.2 - 0.1V and a hydrogen oxidation reaction(HOR) electric current density of 250-1300 microampere cm^-2. A manufacturing method of the gold nanoparticle comprises the next step: processing ultrasonication of gold nanoparticle; cathode processing at -0.6 to -0.3 V for 10 minutes after the ultrasonication. The ultrasonication is processed at an output of 125-200W for 20 minutes to 2 hours in 100mL dispersion solution.

Abstract translation: 目的：提供无活性纳米颗粒的催化活性增加方法，以增强金纳米颗粒在氢氧化反应中的电催化活性，而不会使纳米颗粒生长。 构成：非活性纳米颗粒的催化活性增加方法包括金纳米颗粒的超声波处理步骤。 金纳米颗粒在-0.2-0.1V的范围内具有负峰，氢氧化反应（HOR）电流密度为250-1300微安cm -2。 金纳米颗粒的制造方法包括下列步骤：加工金纳米颗粒的超声波; 超声波处理10分钟后，阴极处理为-0.6〜-0.3V。 超声波处理在125-200W的输出下，在100mL分散液中处理20分钟至2小时。

公开(公告)号：KR101349265B1

公开(公告)日：2014-01-22

申请号：KR1020120046489

申请日：2012-05-02

Applicant: 성균관대학교산학협력단

Inventor： 권영욱 ,  장지훈 ,  이은직

IPC: B22F9/24 ,  B22F1/00 ,  B82B1/00 ,  B01J23/40

Abstract: 환원성 용매, 귀금속 전구체, 전이금속 전구체, 및 탄소 지지체를 포함하는 용액에 초음파를 조사하는 것을 포함하는, 코어/쉘 구조 나노입자의 제조 방법에 관한 것이다.

公开(公告)号：KR1020130123217A

公开(公告)日：2013-11-12

申请号：KR1020120046489

申请日：2012-05-02

Applicant: 성균관대학교산학협력단

Inventor： 권영욱 ,  장지훈 ,  이은직

IPC: B22F9/24 ,  B22F1/00 ,  B82B1/00 ,  B01J23/40

Abstract: The present invention relates to a preparing method of a nanoparticle having a core/shell structure, which comprises a step for applying ultrasonic waves to a solution containing a reducing solvent, a noble metal precursor, a transition metal precursor, and a carbon support. The reducing solvent has reducing power at a temperature of more than 130 degrees. The present invention easily and cost-efficiently prepares the nanoparticle having the core/shell structure using ultrasonic waves. [Reference numerals] (AA) Method A;(BB) Reducing solvent;(CC) Hollow hole;(DD,KK) Reduction of a precious metal precursor by a reducing solvent;(EE) Reduction of a transition metal precursor through ultrasonic treatment;(FF,GG) Transition metal core;(HH) Precious metal shell;(II) Method B;(JJ) Precious metal precursor;(LL) Precious metal core;(MM) Transition metal precursor;(NN) Precious metal core;(OO) Transition metal shell

Abstract translation: 本发明涉及具有核/壳结构的纳米颗粒的制备方法，其包括向包含还原溶剂，贵金属前体，过渡金属前体和碳载体的溶液中施加超声波的步骤。 还原溶剂在大于130度的温度下具有降低功率。 本发明容易且成本有效地利用超声波制备具有核/壳结构的纳米颗粒。 （AA）方法A;（BB）还原溶剂;（CC）中空孔;（DD，KK）通过还原溶剂还原贵金属前体;（EE）通过超声波处理还原过渡金属前体 （FF，GG）过渡金属芯;（HH）贵金属壳;（II）方法B;（JJ）贵金属前体;（LL）贵金属芯;（MM）过渡金属前体;（NN）贵金属芯 ;（OO）过渡金属壳