KR20200023314A - 수소 저장 제품 및 이의 제조 방법 - Google Patents
수소 저장 제품 및 이의 제조 방법 Download PDFInfo
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Abstract
Description
도 2(a)는 도 1에 나타난 방법에 따라 제조된 수소 저장 물질의 단일층 부분의 개략적 구조물의 측면 사시도이다. 도 2(b)는 도 1에 나타난 방법에 따라 제조된 수소 저장 물질의 이중층 부분의 사시도이다.
도 3은 하기 파라미터에 따라 제조된 수소 저장 물질의 샘플의 투과 전자 현미경(transmission electron microscopy, TEM) 이미지이다: B2O3:GO=1:2, 1200 ℃및 4 시간의 하소, KOH:BC=1:2, 750 ℃및 2 시간의 열분해. 원형 부분은 물질의 기공을 나타낸다.
도 4는 도 2에 나타난 수소 저장 물질의 샘플의 X-선 회절 (XRD) 스펙트럼이다.
도 5(a) 내지 (d)는 도 2에 나타난 수소 저장 물질의 샘플에 대한 C 1s, O 1s, K 2s, 및 B 1s의 각각의 XPS 미세 스캔이다.
도 6(a)는 하기 파라미터에 의해 합성된 수소 저장 물질에 대한 수소 흡착 PCI 곡선을 나타내는 그래프이다: B2O3:GO=1:2, 1200 ℃ 및 4 시간의 하소, KOH:BC=1:2, 750 ℃ 및 2 시간의 열분해.
도 6(b)는 하기 파라미터에 의해 합성된 수소 저장 물질에 대한 수소 탈착 PCI 곡선을 나타내는 그래프이다: B2O3:GO=1:2, 1200 ℃ 및 4 시간의 하소, KOH:BC=1:2, 750 ℃ 및 2 시간의 열분해.
도 6(c)는 하기 파라미터에 의해 합성된 수소 저장 물질에 대한 사이클링 수에 따른 용량 번화를 나타내는 그래프이다: B2O3:GO=1:2, 1200 ℃ 및 4 시간의 하소, KOH:BC=1:2, 750 ℃ 및 2 시간의 열분해.
Claims (18)
- 다음을 포함하는 수소 저장 제품:
붕소 화학종으로 작용기화되고 알칼리 금속 또는 알칼리 토금속으로 장식된 환원된 산화 그래핀을 포함하는 단일층 또는 다중층 구조물, 여기서 구조물의 각 층은 붕소 원자에 결합된 산소 원자의 붕소-산소 작용기를 추가로 포함함. - 제1항에 있어서, 구조물의 각 층은 붕소 원자로 작용기화된 탄소 원자의 육방 격자를 포함하는 수소 저장 제품.
- 제2항에 있어서, 알칼리 금속 또는 알칼리 토금속은 붕소 원자에 인접한, 또는 육방 격자의 중공에 인접한, 또는 탄소-붕소 결합에 인접한, 또는 붕소-산소 작용기에 인접한 결합 위치에 위치하는 수소 저장 제품.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 알칼리 금속 또는 알칼리 토금속은 Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr 및 Ba로 이루어진 군에서 선택되는 수소 저장 제품.
- 제1항 내지 제4항 중 어느 한 항에 있어서, 구조물은 수소 분자가 구조물의 흡착 부위를 통과하고 접근하기에 충분히 큰 기공을 갖는 결함을 포함하는 수소 저장 제품.
- 제5항에 있어서, 기공은 5 nm 내지 20 nm의 평균 직경을 갖는 수소 저장 물질.
- 제1항 내지 제5항 중 어느 한 항에 있어서, 구조물은 한 개 내지 열 개의 층을 포함하는 수소 저장 물질.
- 제7항에 있어서, 층간 거리는 0.33 nm 내지 1.0 nm인 수소 저장 물질.
- 제1항 내지 제5항 중 어느 한 항에 있어서, 1 at. % 내지 10 at%의 붕소 원자 농도를 포함하는 수소 저장 물질.
- 제1항 내지 제10항 중 어느 한 항에 있어서, 1 at. % 내지 15 at%의 알칼리 금속 또는 알칼리 토금속 원자 농도를 포함하는 수소 저장 물질.
- 제3항 내지 제10항 중 어느 한 항에 있어서, 1 at. % 내지 10 at%의 산소 원자 농도를 포함하는 수소 저장 물질.
- 다음 단계를 포함하는 수소 저장 물질 제조 방법:
(a) 산화 그래핀 전구체를 제조하는 단계;
(b) 붕소를 산화 그래핀 전구체에 작용기화하여 붕소-작용기화된 환원된 산화 그래핀을 생성하는 단계; 및
(c) 알칼리 금속 또는 알칼리 토금속을 붕소-작용기화된 환원된 산화 그래핀에 장식하여 알칼리 금속 또는 알칼리 토금속-장식된 붕소-작용기화된 환원된 산화 그래핀 구조물을 생성하는 단계. - 제12항에 있어서, 그래핀 전구체를 제조하는 단계는 다음 단계를 포함하는 방법:
흑연을 오산화 인, 과황산칼륨 및 황산으로 전처리하여 전처리된 흑연 생성물을 생성하는 단계;
전처리된 흑연 생성물을 황산, 인산 및 과망간산칼륨의 혼합물에 교반하며 용해시키고 가열하여 산화 그래핀 생성물을 생성하는 단계;
산화 그래핀 생성물을 물 및 과산화수소와 혼합하는 단계; 및
산화 그래핀 생성물을 세척하고 박리시키는 단계. - 제12항 또는 제13항에 있어서, 붕소를 산화 그래핀 전구체에 작용기화하는 단계는 다음 단계를 포함하는 방법:
산화 붕소, 붕산 또는 메타붕산 및 산화 그래핀 용액의 건조 전구체 혼합물을 형성하는 단계; 및
건조 전구체 혼합물을 하소하는 단계. - 제14항에 있어서, 하소는 600 내지 1300 ℃의 온도에서 적어도 0.5hr 동안 수행되는 방법.
- 제12항 내지 제15항 중 어느 한 항에 있어서, 알칼리 금속 또는 알칼리 토금속을 붕소-작용기화된 환원된 산화 그래핀에 장식하는 단계는 다음 단계를 포함하는 방법:
알칼리 금속 또는 알칼리 토금속 및 붕소-작용기화된 환원된 산화 그래핀의 건조 전구체 혼합물을 형성하는 단계; 및
건조 전구체 혼합물의 열분해를 수행하는 단계. - 제16항에 있어서, 알칼리 금속 또는 알칼리 토금속은 칼륨이고, 알칼리 금속 또는 알칼리 토금속 및 붕소-작용기화된 환원된 산화 그래핀의 건조 전구체 혼합물을 형성하는 단계는 교반 및 분쇄에 의해 수산화 칼륨을 붕소-도핑된 그래핀과 혼합하는 단계를 포함하는 방법.
- 제16항 또는 제17항에 있어서, 열분해는 700 내지 900 ℃의 온도에서 수행되는 방법.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201762513242P | 2017-05-31 | 2017-05-31 | |
| US62/513,242 | 2017-05-31 | ||
| PCT/CA2018/050592 WO2018218339A1 (en) | 2017-05-31 | 2018-05-18 | Hydrogen storage product and method for manufacturing same |
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| Publication Number | Publication Date |
|---|---|
| KR20200023314A true KR20200023314A (ko) | 2020-03-04 |
| KR102519830B1 KR102519830B1 (ko) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020197038944A Active KR102519830B1 (ko) | 2017-05-31 | 2018-05-18 | 수소 저장 제품 및 이의 제조 방법 |
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|---|---|
| US (1) | US11634321B2 (ko) |
| EP (1) | EP3630677A4 (ko) |
| JP (1) | JP7136889B2 (ko) |
| KR (1) | KR102519830B1 (ko) |
| CN (1) | CN110691754B (ko) |
| CA (1) | CA3031304C (ko) |
| WO (1) | WO2018218339A1 (ko) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12077439B2 (en) | 2020-11-13 | 2024-09-03 | Korea Advanced Institute Of Science And Technology | Method for preparing reduced graphene oxide-magnesium nanocrystal composite |
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| WO2020229881A1 (en) * | 2019-05-16 | 2020-11-19 | Arcelormittal | A method for the manufacture of graphene oxide from expanded kish graphite |
| WO2020229882A1 (en) * | 2019-05-16 | 2020-11-19 | Arcelormittal | A method for the manufacture of reduced graphene oxide from expanded kish graphite |
| US20230227705A1 (en) * | 2020-06-15 | 2023-07-20 | Qatar Foundation For Education, Science And Community Development | Thermal conductivity enhancement of nanofluids using functionalized or emulsified carbide derived carbon nanoparticles |
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| WO2018218339A1 (en) | 2018-12-06 |
| CA3031304A1 (en) | 2018-12-06 |
| JP7136889B2 (ja) | 2022-09-13 |
| US11634321B2 (en) | 2023-04-25 |
| CN110691754B (zh) | 2023-08-22 |
| US20210147227A1 (en) | 2021-05-20 |
| KR102519830B1 (ko) | 2023-04-07 |
| EP3630677A1 (en) | 2020-04-08 |
| CA3031304C (en) | 2019-10-29 |
| EP3630677A4 (en) | 2021-03-03 |
| CN110691754A (zh) | 2020-01-14 |
| JP2020521718A (ja) | 2020-07-27 |
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