Hexagonal CuCo2O4 Nanoplatelets, a Highly Active Catalyst for the Hydrolysis of Ammonia Borane for Hydrogen Production
Catalytic hydrolysis of ammonia borane (AB) has been considered as an effective and safe method to generate hydrogen. Development of highly active and low-cost catalysts is one of the key tasks for this technology. In this work, hexagonal CuCo2O4 nanoplatelets with a thickness of approximately 55 nm...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2019-03-01
|
| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | http://www.mdpi.com/2079-4991/9/3/360 |
| _version_ | 1811232900787470336 |
|---|---|
| author | Jinyun Liao Yufa Feng Shiqi Wu Huilong Ye Jin Zhang Xibin Zhang Feiyan Xie Hao Li |
| author_facet | Jinyun Liao Yufa Feng Shiqi Wu Huilong Ye Jin Zhang Xibin Zhang Feiyan Xie Hao Li |
| author_sort | Jinyun Liao |
| collection | DOAJ |
| description | Catalytic hydrolysis of ammonia borane (AB) has been considered as an effective and safe method to generate hydrogen. Development of highly active and low-cost catalysts is one of the key tasks for this technology. In this work, hexagonal CuCo2O4 nanoplatelets with a thickness of approximately 55 nm were prepared. In AB hydrolysis, those nanoplatelets exhibited ultrahigh catalytic activity with turnover frequency (TOF) of 73.4 molhydrogen min−1 molcat−1. As far as we know, this is one of the highest TOF values ever reported for non-noble metal catalysts. In addition, the effects of viscosity and different alkalis on the hydrolysis were also investigated. It is revealed that high viscosity of the reaction medium will retard the hydrolysis reaction. The presence of NaOH, KOH, and Na2CO3 in the reaction solution is favorable for hydrolytic process. In contrast, NH3·H2O will slow down the hydrolysis rate of ammonia borane. This work can provide some novel insight into the design of catalysts with both high performance and low cost. Besides, some findings in the present study can also offer us some information about how to improve the hydrolysis rates by optimizing the hydrolysis condition. |
| first_indexed | 2024-04-12T11:12:10Z |
| format | Article |
| id | doaj.art-5fce430bc4814586b2eff5820ba734d6 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-04-12T11:12:10Z |
| publishDate | 2019-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-5fce430bc4814586b2eff5820ba734d62022-12-22T03:35:35ZengMDPI AGNanomaterials2079-49912019-03-019336010.3390/nano9030360nano9030360Hexagonal CuCo2O4 Nanoplatelets, a Highly Active Catalyst for the Hydrolysis of Ammonia Borane for Hydrogen ProductionJinyun Liao0Yufa Feng1Shiqi Wu2Huilong Ye3Jin Zhang4Xibin Zhang5Feiyan Xie6Hao Li7School of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, ChinaSchool of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, ChinaSchool of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, ChinaSchool of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, ChinaSchool of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, ChinaSchool of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, ChinaSchool of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, ChinaSchool of Chemistry and Materials Engineering, Huizhou University, Huizhou 516007, ChinaCatalytic hydrolysis of ammonia borane (AB) has been considered as an effective and safe method to generate hydrogen. Development of highly active and low-cost catalysts is one of the key tasks for this technology. In this work, hexagonal CuCo2O4 nanoplatelets with a thickness of approximately 55 nm were prepared. In AB hydrolysis, those nanoplatelets exhibited ultrahigh catalytic activity with turnover frequency (TOF) of 73.4 molhydrogen min−1 molcat−1. As far as we know, this is one of the highest TOF values ever reported for non-noble metal catalysts. In addition, the effects of viscosity and different alkalis on the hydrolysis were also investigated. It is revealed that high viscosity of the reaction medium will retard the hydrolysis reaction. The presence of NaOH, KOH, and Na2CO3 in the reaction solution is favorable for hydrolytic process. In contrast, NH3·H2O will slow down the hydrolysis rate of ammonia borane. This work can provide some novel insight into the design of catalysts with both high performance and low cost. Besides, some findings in the present study can also offer us some information about how to improve the hydrolysis rates by optimizing the hydrolysis condition.http://www.mdpi.com/2079-4991/9/3/360nanoplateletsheterogeneous catalysishydrogen productionammonia boraneviscosity |
| spellingShingle | Jinyun Liao Yufa Feng Shiqi Wu Huilong Ye Jin Zhang Xibin Zhang Feiyan Xie Hao Li Hexagonal CuCo2O4 Nanoplatelets, a Highly Active Catalyst for the Hydrolysis of Ammonia Borane for Hydrogen Production Nanomaterials nanoplatelets heterogeneous catalysis hydrogen production ammonia borane viscosity |
| title | Hexagonal CuCo2O4 Nanoplatelets, a Highly Active Catalyst for the Hydrolysis of Ammonia Borane for Hydrogen Production |
| title_full | Hexagonal CuCo2O4 Nanoplatelets, a Highly Active Catalyst for the Hydrolysis of Ammonia Borane for Hydrogen Production |
| title_fullStr | Hexagonal CuCo2O4 Nanoplatelets, a Highly Active Catalyst for the Hydrolysis of Ammonia Borane for Hydrogen Production |
| title_full_unstemmed | Hexagonal CuCo2O4 Nanoplatelets, a Highly Active Catalyst for the Hydrolysis of Ammonia Borane for Hydrogen Production |
| title_short | Hexagonal CuCo2O4 Nanoplatelets, a Highly Active Catalyst for the Hydrolysis of Ammonia Borane for Hydrogen Production |
| title_sort | hexagonal cuco2o4 nanoplatelets a highly active catalyst for the hydrolysis of ammonia borane for hydrogen production |
| topic | nanoplatelets heterogeneous catalysis hydrogen production ammonia borane viscosity |
| url | http://www.mdpi.com/2079-4991/9/3/360 |
| work_keys_str_mv | AT jinyunliao hexagonalcuco2o4nanoplateletsahighlyactivecatalystforthehydrolysisofammoniaboraneforhydrogenproduction AT yufafeng hexagonalcuco2o4nanoplateletsahighlyactivecatalystforthehydrolysisofammoniaboraneforhydrogenproduction AT shiqiwu hexagonalcuco2o4nanoplateletsahighlyactivecatalystforthehydrolysisofammoniaboraneforhydrogenproduction AT huilongye hexagonalcuco2o4nanoplateletsahighlyactivecatalystforthehydrolysisofammoniaboraneforhydrogenproduction AT jinzhang hexagonalcuco2o4nanoplateletsahighlyactivecatalystforthehydrolysisofammoniaboraneforhydrogenproduction AT xibinzhang hexagonalcuco2o4nanoplateletsahighlyactivecatalystforthehydrolysisofammoniaboraneforhydrogenproduction AT feiyanxie hexagonalcuco2o4nanoplateletsahighlyactivecatalystforthehydrolysisofammoniaboraneforhydrogenproduction AT haoli hexagonalcuco2o4nanoplateletsahighlyactivecatalystforthehydrolysisofammoniaboraneforhydrogenproduction |