Boehmite chyam dinglik ai lam hpe hkrak tup tsun dan ai

Boehmite gaw ahkyak ai aluminum- hpe madung tawn ai lung seng rai nna, n-gun dat hpe madi shadaw ya ai, lithium battery hpe garan ginhka ai n-gun dat ni hpe shinggrup da ai, nlung n-gun dat ni hpe n-gun dat dat ai hta grai lang ma ai. Shi a san seng ai lam, crystal structure, hte hkum hkrang atsam ni gaw hpaga lam a madang hte maren rai na matu, quality hpe hkang lu na matu, hkrang shapraw ai chyam dinglik ai lam hpe galaw ra ai. Lahta na lam ni gaw boehmite hpe chyam dinglik na matu madung lahkam ni hte hpaji masa lam ni rai nga ai.

I. Sample hpe shawng tsi lajang ai

Boehmite sample ni hpe n chyam yu shi yang, hkrak tup sawk sagawn ai mahtai ni hpe lu la na matu, shawng nnan e gram lajang ra ai. Shawng nnan, raw sample hpe 200 mesh (sh) dai hta grau kaja ai grind lang nna grind galaw nna, 105℃-110℃hta hkying hkum 2 tup oven hta hkyet kau nna, hka lim ai hka hpe shapraw kau ra ai. Ndai chyam dinglik ai lam hta npu na bungli galaw ai hpung ni (sh) n san seng ai arung arai ni lawm yang, n-gun n rawng ai ethanol hte matut nna jasan jaseng ra ai hte vacuum drying galaw ra ai, dai hku galaw yang ngam ai solvent gaw hpang na sawk sagawn ai lam hpe pat shingdang na matu n byin hkra makawp maga ra ai.

II. Hkum hkrang arung arai chyam dinglik ai lam
1.Particle Size hpe garan ginhka ai lam: Boehmite n-gun n-gun hpe shadawn na matu laser n-gun hpe jep yu ai jak (Malvern Mastersizer zawn re ai) hpe lang ai. D50 (median diameter) hpe 0.5 hte 5 μm lapran hta n bung ai jai lang ai lam ni a ra kadawn ai lam ni hpe hkan sa lu na matu, laksan hku nna hkang ai.

2.Laksan npu lamu ga: Laksan lamu ga lamu ga hpe BET nitrogen hkap la ai ladat (Micromeritics ASAP 2020 zawn) lang nna shadawn ai. High-san seng ai boehmite gaw, 5 kaw nna 20 m2/g du hkra, laksan npu lamu ga jarit nga ai, dai gaw, catalytic shamu shamawt lam hte coating langai sha re ai lam hpe hkrak hkra hkra machyi shangun ai.

3.Crystal a hkrang masa: Scanning electron microscopy (SEM) hpe lang nna, n-gun dat ni a hkrang masa hpe yu ai. Boehmite gaw, laksan hku nna, flake- zawn re ai (sh) n-gun rawng ai hkrang hpe madun dan ai. Morphological n bung ai lam gaw, high-end application ni a matu ahkyak ai masat kumla langai rai nga ai.

III. Chemical n-gun hte san seng ai lam hpe sawk sagawn ai lam
1.Chemical Composition: Al2O3 n-gun hpe X-ray nhtoi htoi ai nsam (XRF) shing nrai, ICP-OES (ICP-OES) hpe lang nna, shadawn shadang hpe jep joi ai lam galaw ai. Industrial-grade boehmite gaw Al2O3 san seng ai lam 95% hta grau ai (sh) dai hte maren sha ra ai, san seng ai lam tsaw ai boehmite gaw 99% hta grau ai (sh) dai hte maren ai san seng ai lam ra ai.

2.N san seng ai lam hpe sawk sagawn ai lam: ICP-MS (sh) atomic absorption spectroscopy (AAS) hpe lang nna SiO2, Fe2O3, Na2O zawn re ai n san seng ai lam ni hpe sawk sagawn ai. Shanhte a lam ni hpe arung arai arung arai ni hpe n hkra hkra, grai pat shingdang da ra ai.

IV. Crystal hkrang hpe masat masa galaw ai lam
1.X-ray Diffraction (XRD): Bragg n-gun n-gun n-gun hpe lang nna, boehmite a -AlOOH n-gun n-gun hpe kam ging ai hte n-gun n-gun kade daram nga ai hpe sawn la ai. Standard boehmite gaw 2θ lapran 14℃kaw nna 35℃du hkra laklai ai nsam garan ginhka ai npawt nhpang ni hpe madun dan ai. N san seng ai arung arai ni (-Al2O3 zawn re ai ni) nga ai gaw, grai -calcination galaw ai hpe madun ai rai na re.

2.Thermogravimetric Analysis (TGA): Nbung nbung hta 1000℃du hkra katsi shangun nna, hkum hkrang n-gun yawm wa ai hpe yu reng ai. Boehmite gaw 300℃hte 500℃lapran hta -Al2O3 de htum mat chye ai. Dai n-gun yawm ai hpe lang nna hydroxyl lawm ai hpe jep yu mai ai.

V. Magam bungli chyam dinglik ai lam (N ra ai)

Laksan jai lang ai lam ni a matu, pH shadawn ai lam (galaw madang hku nna 7-9), sau hkap la ai lam hpe chyam dinglik ai lam (hprawng hkawm ai lam hpe jep joi na matu), shing nrai, porosity hpe jep joi ai lam (mercury intrusion porosimetry zawn re ai) ni hpe mung, catalyst madi shadaw ai lam (sh) battery arung arai ni a laksan ra kadawn ai lam ni hpe hkan sa lu na matu ra na re.

Tsun ga nga yang, boehmite chyam dinglik ai lam gaw, ngang grin ai hte kam hpa mai ai bungli galaw lu na matu hte, npu na jai lang ai lam ni a matu, hkamja lam hpe madi shadaw ya lu na matu, hkum hkrang, tsi mawan, hte nlung nsam ni hpe kayau kaya galaw ai, multi-dimensional sawk sagawn ai lam ra nga ai.