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Caesar8536

至尊木虫 (知名作家)

[求助] 求助,光催化,电催化产氢问题 已有1人参与

求助各位大佬,光催化电催化产氢,H2产生的量和H2产生的速率怎么确定?有没有这方面的仪器可以检测?
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nywyz

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感谢参与,应助指数 +1
Caesar8536: 金币+200, ★★★★★最佳答案, 谢谢大佬 2019-10-31 23:04:16
气相色谱仪,随便找篇光催产氢的文章它们的实验步骤里面都会有写的
3楼2019-10-31 21:36:39
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匿名

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2楼2019-10-31 16:35:46
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nywyz

木虫 (小有名气)

【答案】应助回帖

DOI: 10.1039/c7cy02456h
The photocatalytic H2 evolution reactions were carried out in a Pyrex reaction cell connected to a closed gas circulation
and evacuation system using a 300 W xenon (Xe) lamp (Beijing Aulight Technology Co. Ltd., Beijing, China) with a cut-
off filter (λ > 420 nm). Photocatalyst (0.05 g) was added to an aqueous solution (50 mL) containing sodium sulfide (Na 2 S;
0.35 M) and sodium sulfite (Na2SO3 ; 0.25 M) in a 300 mL Pyrex glass reactor, and then the suspension was ultrasonically
dispersed for 10 min. Prior to irradiation, the reactor was thoroughly evacuated using a vacuum pump to remove the
dissolved air in the water. The amount of H2 evolved was analyzed using on-line gas chromatography with a thermal con-
ductivity detector (Hua'ai, GC9160, China, MS-5A) with argon as the carrier gas. The co-catalyst (Pt) for the promotion of
H2 evolution was photodeposited in situ on the photocatalyst with chloroplatinic acid hexahydrate (H2PtCl6 ·6H2O) as the precursor. The temperature for all photocatalytic reactions was kept at 25 °C ± 5 °C.
4楼2019-10-31 21:40:05
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