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Two-dimensional BCN...
Two-dimensional BCN matrix inlaid with single-atom-Cu driven electrochemical nitrate reduction reaction to achieve sustainable industrial-grade production of ammonia
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- Zhao, Xue (författare)
- Yunnan Univ, Sch Ecol & Environm Sci, Inst Ecol Res & Pollut Control Plateau Lakes, Kunming 650504, Yunnan, Peoples R China.;Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China.
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- Jia, Xiuxiu (författare)
- Yunnan Univ, Sch Ecol & Environm Sci, Inst Ecol Res & Pollut Control Plateau Lakes, Kunming 650504, Yunnan, Peoples R China.
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- He, Yingnan (författare)
- Yunnan Univ, Sch Ecol & Environm Sci, Inst Ecol Res & Pollut Control Plateau Lakes, Kunming 650504, Yunnan, Peoples R China.
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- Zhang, Haibo (författare)
- Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China.
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- Zhou, Xiaohai (författare)
- Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China.
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- Zhang, Hucai (författare)
- Yunnan Univ, Sch Ecol & Environm Sci, Inst Ecol Res & Pollut Control Plateau Lakes, Kunming 650504, Yunnan, Peoples R China.
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- Zhang, Shusheng (författare)
- Zhengzhou Univ, Coll Chem & Mol Engn, Zhengzhou 450000, Peoples R China.
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- Dong, Yemin (författare)
- Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China.
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- Hu, Xun (författare)
- Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Peoples R China.
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- Kuklin, Artem V. (författare)
- Uppsala universitet,Institutionen för fysik och astronomi,Siberian Fed Univ, Int Res Ctr Spect & Quantum Chem IRC SQC, 79 Svobodny Pr, Krasnoyarsk 660041, Russia.,Siberian Fed Univ, Russia; Uppsala Univ, Sweden
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- Baryshnikov, Glib (författare)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten,Linköping Univ, Lab Organ Elect, ITN, S-60174 Norrköping, Sweden.
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- Ågren, Hans (författare)
- Uppsala universitet,Institutionen för fysik och astronomi,Uppsala Univ, Sweden
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- Hu, Guangzhi (författare)
- Yunnan Univ, Sch Ecol & Environm Sci, Inst Ecol Res & Pollut Control Plateau Lakes, Kunming 650504, Yunnan, Peoples R China.
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Yunnan Univ, Sch Ecol & Environm Sci, Inst Ecol Res & Pollut Control Plateau Lakes, Kunming 650504, Yunnan, Peoples R China;Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China. Yunnan Univ, Sch Ecol & Environm Sci, Inst Ecol Res & Pollut Control Plateau Lakes, Kunming 650504, Yunnan, Peoples R China. (creator_code:org_t)
- Elsevier, 2021
- 2021
- Engelska.
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Ingår i: APPLIED MATERIALS TODAY. - : Elsevier. - 2352-9407. ; 25
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Electrochemical methods have been proven to effectively eliminate nitrates in sewage and convert them into high value-added ammonia products. Here, after annealing treatment of metal boron cluster organic polymers formed by the combination of 1,10-phenanthroline, Cu2+ and closo-[B12H12](2)(-), a Cu single-atom doped BCN (B-doped CN) with a diamond-shaped nanosheet structure was obtained. In the electrochem-ical reduction reaction of nitrate, BCN-Cu exhibits excellent catalytic activity, specifically: 1) the ammonia yield rate reached as high as 498.85 mu g h(-1) cm(-2), 1047.14 mu g h(-1) cm(-2), 1900.07 mu g h(-1) cm(-2) and 3358.74 mu g h(-1) cm(-2) at -0.3 V, -0.4 V, -0.5 V and -0.6 V vs reversible hydrogen electrode, respectively, and Faradaic efficiency is 95.90%, 97.28%, 98.23% and 97.37%; 2) after repeated use of BCN-Cu 10 times or continuous operation for 16 h, the activity against electrochemical reduction reaction of nitrate anions is almost unchanged. The (NO3-)-N-15 isotopic labeling experiment proved that the detected NH3 comes from the reduction of NO3- on BCN-Cu. Control experiments show that the presence of Cu determines whether BCN-Cu has the possibility of catalyzing electrochemical reduction reactions of nitrate, and the presence of the B element enhances the catalytic activity of BCN-Cu. Density functional calculations indicate that in the water phase the process of reducing NO3- to NH3 on Cu-0 is an exothermic reaction, and that the adsorption process of NO3- on Cu-0 is the rate-determining step.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Organisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Organic Chemistry (hsv//eng)
Nyckelord
- Synthetic ammonia
- Electrocatalysis
- Nitrate reduction
- Nitrate removal
- Single-atom Cu
Publikations- och innehållstyp
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- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Zhao, Xue
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Jia, Xiuxiu
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He, Yingnan
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Zhang, Haibo
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Zhou, Xiaohai
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Zhang, Hucai
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visa fler...
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Zhang, Shusheng
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Dong, Yemin
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Hu, Xun
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Kuklin, Artem V.
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Baryshnikov, Gli ...
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Ågren, Hans
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Hu, Guangzhi
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Materialkemi
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Organisk kemi
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APPLIED MATERIAL ...
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Uppsala universitet
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Linköpings universitet