s*******y
发帖数: 572 | 1 文献中是这么介绍制备方法的：
2@C (45.0 mg) was introduced into a high-density polyethylene container (5
mL) together with water (1.0 mL), KOH (99.99% Sigma-Aldrich) (65.0 mg),
absolute ethanol (99.8% Fluka) (0.50 g) and 5% Nafion® ion-exchange
resin in alcohol solution (Sigma-Aldrich) (0.37 g). The resulting suspension
was sonicated for 30 min with a Branson 3200 bath. The suspension was
always freshly prepared. The metal loading on glassy carbon electrode was
determined by weighting the amount of ink deposited on the glassy carbon
disk.
但不知道suspension超声完以后是如何担载到玻璃电极上去的。步骤里面一下就跳过去
了。有人知道是怎么做的吗？ |
j****C
发帖数: 72 | 2 I don't know where you got this reference,honestly I cannot understand what
you are doing. In yours citation Nafion is used and therefore you are
working PEM fuel cell(?), but Idon't know why you add the ink with some KOH
which will have chance to covert H-Nafion to Na-Nafion without proton
conductivity. At fuel cell industrials, CCM is standard electrode
preparation method. |
s*******y
发帖数: 572 | 3 谢谢回复！
这段文字出自这篇文献里的SI：
http://onlinelibrary.wiley.com/doi/10.1002/anie.201002234/abstr
KOH是用来转化催化剂的，用的量也很小。
我不是做这一行的，就是比较感兴趣。所以问问。能大致介绍一下CCM是怎么制备的吗
？ |
s*******y
发帖数: 572 | 4 文献中是这么介绍制备方法的：
2@C (45.0 mg) was introduced into a high-density polyethylene container (5
mL) together with water (1.0 mL), KOH (99.99% Sigma-Aldrich) (65.0 mg),
absolute ethanol (99.8% Fluka) (0.50 g) and 5% Nafion® ion-exchange
resin in alcohol solution (Sigma-Aldrich) (0.37 g). The resulting suspension
was sonicated for 30 min with a Branson 3200 bath. The suspension was
always freshly prepared. The metal loading on glassy carbon electrode was
determined by weighting the amount of ink deposited on the glassy carbon
disk.
但不知道suspension超声完以后是如何担载到玻璃电极上去的。步骤里面一下就跳过去
了。有人知道是怎么做的吗？ |
j****C
发帖数: 72 | 5 I don't know where you got this reference,honestly I cannot understand what
you are doing. In yours citation Nafion is used and therefore you are
working PEM fuel cell(?), but Idon't know why you add the ink with some KOH
which will have chance to covert H-Nafion to Na-Nafion without proton
conductivity. At fuel cell industrials, CCM is standard electrode
preparation method. |
s*******y
发帖数: 572 | 6 谢谢回复！
这段文字出自这篇文献里的SI：
http://onlinelibrary.wiley.com/doi/10.1002/anie.201002234/abstr
KOH是用来转化催化剂的，用的量也很小。
我不是做这一行的，就是比较感兴趣。所以问问。能大致介绍一下CCM是怎么制备的吗
？ |
c******c
发帖数: 51 | 7 直接滴上，空气晾干或者柔和氮气流吹干即可，Nafion会把particles粘在GC表面的，
当然，GC表面需要预先磨及超声处理一下。 如果是金电极表面，连Nafion都省了。 |
m****L
发帖数: 573 | 8 就是拿一个pipette从超声过的suspension里头取一滴，滴到GC电极表面，干了就好了
。 |
|
s*****u
发帖数: 331 | 9 这个不是真正的燃料电池电极制备，只是用rde来做电化学的基本测试，通常做纳米或
者其他催化剂的用这个来比较催化活性。 |
