 |
 |
 |
| 24小時(shí)熱門版塊排行榜 |
 |
 |
 |
||
 |
 |
 |
 |
 |
| 5 | 2/1 | 返回列表 |
| 查看: 3399 | 回復(fù): 19 | |||
| 當(dāng)前只顯示滿足指定條件的回帖，點(diǎn)擊這里查看本話題的所有回帖 | |||
[交流]
【求助】二氧化錳在鋰空氣電池中起什么作用呢 已有7人參與
|
|||
| 二氧化錳在鋰空氣電池中起什么作用呢？文獻(xiàn)上都說是作為催化劑，具體是起什么作用呢 |
回復(fù)此樓» 猜你喜歡
上海工程技術(shù)大學(xué)生態(tài)與功能紡織品開發(fā)研究團(tuán)隊(duì)招收學(xué)碩專碩研究生
已經(jīng)有0人回復(fù)
-
華南理工0703求調(diào)劑，總分336四六級(jí)已過
已經(jīng)有2人回復(fù)
-
分析化學(xué)論文潤色/翻譯怎么收費(fèi)?
已經(jīng)有152人回復(fù)
-
青島大學(xué)化學(xué)化工學(xué)院2026年招收調(diào)劑碩士研究生
已經(jīng)有0人回復(fù)
-
新能源材料方向考研調(diào)劑招生（長江師范學(xué)院）
已經(jīng)有0人回復(fù)
-
0854電子信息272求調(diào)劑！
已經(jīng)有0人回復(fù)
-
化學(xué)-化工-材料-食品-生物-環(huán)境2026年研究生調(diào)劑（可以不考數(shù)學(xué)）
已經(jīng)有0人回復(fù)
-
化學(xué)-化工-材料-食品-生物-環(huán)境-農(nóng)業(yè) 2026年研究生調(diào)劑（可以不考數(shù)學(xué)）
已經(jīng)有1人回復(fù)
-
070300一志愿211，312分求調(diào)劑院校
已經(jīng)有4人回復(fù)
-
26年儲(chǔ)能、電池方向博士申請(qǐng)
已經(jīng)有0人回復(fù)
-
070300化學(xué)求調(diào)劑
已經(jīng)有2人回復(fù)
dwkong
木蟲 (正式寫手)
- ECEPI: 1
- 應(yīng)助: 20 (小學(xué)生)
- 金幣: 4029.3
- 散金: 538
- 紅花: 2
- 帖子: 684
- 在線: 178.8小時(shí)
- 蟲號(hào): 489653
- 注冊(cè): 2008-01-02
- 專業(yè): 電化學(xué)
燕子206(金幣+1): 2010-11-21 16:27:31
|
The common way to prepare MnO2-catalyzed carbon is the mixing of a manganese salt and potassium permanganate solutions in the presence of suspended carbon substrate (2MnO4 ? +3Mn2+ +2H2O→5MnO2 +4H+). The porosity of the carbon substrate does not remain unchanged in course of this process. The substrate undergoes modification due to the reaction between the carbon and permanganate. As a result of this reaction, some of closed pores turn to be opened, and some open pores turn to be widened. This effect may be particularly distinct after the catalyzed substrate thermo-treatment. As-deposited MnO2 particles camouflage the pore orifices, but the oxide particles undergo dehydration being heated, and thus shrink and expose more carbon pore volume. This MnO2-catalized carbon substrate behavior was demonstrated in the study of Cheng et al. [36], which has revealed that charge capacity of the carbon, catalyzed in KMnO4/MnSO4-process, was superior to the charge capacity of the same carbon catalyzed by mixing with MnO2- powder. Also it was found that the thermo-treatment (300 ?C) enhanced the charge capacity of the KMnO4/MnSO4-catalyzed carbon; the latter may be understood as the result of dehydration – and hence shrinking – of KMnO4/MnSO4-prepared MnO2 particles (MnO2 ×1.3H2O300 ?C→MnO2 ×0.26H2) [40]. |
12樓2010-11-19 14:56:14
2樓2010-11-05 09:32:17
jesuiszidane
銀蟲 (初入文壇)
- 應(yīng)助: 0 (幼兒園)
- 金幣: 397.7
- 散金: 4
- 帖子: 23
- 在線: 10.1小時(shí)
- 蟲號(hào): 1055229
- 注冊(cè): 2010-07-10
- 專業(yè): 電化學(xué)
3樓2010-11-05 15:20:54
壞男孩№亮
金蟲 (正式寫手)
- 應(yīng)助: 1 (幼兒園)
- 金幣: 1126.3
- 散金: 7
- 紅花: 2
- 帖子: 445
- 在線: 132.1小時(shí)
- 蟲號(hào): 638529
- 注冊(cè): 2008-10-28
- 性別: GG
- 專業(yè): 能源化工
4樓2010-11-05 16:30:39
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[有機(jī)交流]
 甲基亞磺磺酸鈉和甲基磺酸酯反應(yīng)機(jī)理
 10+3
|
kaobao456 2026-03-29 | 4/200 |
|
|---|---|---|---|---|
|
[考研] 一志愿北化085600材料專碩275|有文章專利｜求調(diào)劑 +9 | Micky11223 2026-03-25 | 9/450 |
|
|
|
[考研] 一志愿華東師范大學(xué)有機(jī)化學(xué)專業(yè)，初試351分，復(fù)試被刷求調(diào)劑! +7 | 真名有冰 2026-03-29 | 8/400 |
|
|
|
[考研] 一志愿鄭大材料工程290求調(diào)劑 +11 | Youth_ 2026-03-30 | 11/550 |
|
|
|
[考研] 材料與化工（0856）304求B區(qū)調(diào)劑 +3 | 邱gl 2026-03-30 | 7/350 |
|
|
|
[考研] 285求調(diào)劑 +4 | AZMK 2026-03-30 | 7/350 |
|
|
|
[考研] 一志愿鄭州大學(xué)，080500學(xué)碩，總分317分求調(diào)劑 +10 | 舉個(gè)栗子oi 2026-03-24 | 11/550 |
|
|
|
[考研] 309求調(diào)劑 +15 | 誰不是少年 2026-03-29 | 15/750 |
|
|
|
[考研] 求調(diào)劑 +7 | 研研，接電話 2026-03-24 | 8/400 |
|
|
|
[考研] 0703本科鄭州大學(xué)求調(diào)劑 +7 | nhj_ 2026-03-25 | 7/350 |
|
|
|
[考研] 085602 化學(xué)工程專碩 340分求調(diào)劑 +4 | qianbai11 2026-03-29 | 4/200 |
|
|
|
[考研] 317求調(diào)劑 +10 | 蛋黃咸肉粽 2026-03-26 | 10/500 |
|
|
|
[考研] 總分293求調(diào)劑 +8 | 加一一九 2026-03-25 | 11/550 |
|
|
|
[考研] 11408軟件工程求調(diào)劑 +3 | Qiu學(xué)ing 2026-03-28 | 3/150 |
|
|
|
[考研] 299求調(diào)劑 +7 | 嗯嗯嗯嗯2 2026-03-27 | 7/350 |
|
|
|
[考研] 085701環(huán)境工程，267求調(diào)劑 +16 | minht 2026-03-26 | 16/800 |
|
|
|
[考研] 張芳銘-中國農(nóng)業(yè)大學(xué)-環(huán)境工程專碩-298 +4 | 手機(jī)用戶 2026-03-26 | 4/200 |
|
|
|
[考研] 086502化學(xué)工程342求調(diào)劑 +6 | 阿姨復(fù)古不過 2026-03-27 | 6/300 |
|
|
|
[考研] 求b區(qū)院校調(diào)劑 +4 | 周56 2026-03-24 | 5/250 |
|
|
|
[考研] 292求調(diào)劑 +4 | 鵝鵝鵝額額額額?/a> 2026-03-24 | 4/200 |
|