PMID- 32805866
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20200910
IS  - 1944-8252 (Electronic)
IS  - 1944-8244 (Linking)
VI  - 12
IP  - 36
DP  - 2020 Sep 9
TI  - Dual-Heteroatom-Doped Reduced Graphene Oxide Sheets Conjoined CoNi-Based Carbide 
      and Sulfide Nanoparticles for Efficient Oxygen Evolution Reaction.
PG  - 40186-40193
LID - 10.1021/acsami.0c06141 [doi]
AB  - Intensive research is being conducted into highly efficient and cheap nanoscale 
      materials for the electrocatalytic oxidation of water. In this context, we built 
      heterostructures of multilayered CoNi-cyanide bridged coordination (CoNi-CP) 
      nanosheets and graphene oxide (GO) sheets (CoNi-CP/GO) as a source for 
      heterostructured functional electrodes. The layered CoNi-CP/GO hybrid components 
      heated in nitrogen gas (N(2)) at 450  degrees C yield CoNi-based carbide (CoNi-C) through 
      thermal decomposition of CoNi-CP, while GO is converted into reduced GO (rGO) to 
      finally form a CoNi-C/rGO-450 composite. The CoNi-C/rGO-450 composite shows a 
      reasonable efficiency for oxygen evolution reaction (OER) through water 
      oxidations in alkaline solution. Meanwhile, regulated annealing of CoNi-CP/GO in 
      N(2) with thiourea at 450 and 550  degrees C produces CoNi-based sulfide (CoNi-S) rather 
      than CoNi-C between rGO sheets co-doped by nitrogen (N) and sulfur (S) 
      heteroatoms (NS-rGO) to form CoNi-S/NS-rGO-450 and CoNi-S/NS-rGO-550 composites, 
      respectively. The CoNi-S/NS-rGO-550 shows the best efficiency for 
      electrocatalytic OER among all electrodes with an overpotential of 290 mV at 10 
      mA cm(-2) and a Tafel slope of 79.5 mV dec(-1). By applying the iR compensation 
      to remove resistance of the solution (2.1 Omega), the performance is further improved 
      to achieve a current density of 10 mA cm(-2) at an overpotential of 274 mV with a 
      Tafel slope of 70.5 mV dec(-1). This result is expected to be a promising 
      electrocatalyst compared to the currently used electrocatalysts and a step for 
      fuel cell applications in the future.
FAU - Zakaria, Mohamed Barakat
AU  - Zakaria MB
AUID- ORCID: 0000-0003-2525-0092
AD  - Key Laboratory of Eco-chemical Engineering, College of Chemistry and Molecular 
      Engineering, Qingdao University of Science and Technology (QUST), Qingdao 266042, 
      China.
AD  - Department of Chemistry, Faculty of Science, Tanta University, Tanta 31527, 
      Egypt.
AD  - Australian Institute for Bioengineering and Nanotechnology (AIBN), The University 
      of Queensland, Brisbane, QLD 4072, Australia.
FAU - Zheng, Dehua
AU  - Zheng D
AD  - Key Laboratory of Eco-chemical Engineering, College of Chemistry and Molecular 
      Engineering, Qingdao University of Science and Technology (QUST), Qingdao 266042, 
      China.
FAU - Apfel, Ulf-Peter
AU  - Apfel UP
AUID- ORCID: 0000-0002-1577-2420
AD  - Faculty of Chemistry and Biochemistry, Ruhr-Universitat Bochum (RUB), Bochum 150, 
      Germany.
AD  - Fraunhofer UMSICHT, Osterfelder Strasse 3, Oberhausen 46047, Germany.
FAU - Nagata, Takahiro
AU  - Nagata T
AUID- ORCID: 0000-0002-8591-2943
AD  - International Research Center for Materials Nanoarchitechtonics (WPI-MANA), 
      National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 
      305-0044, Japan.
FAU - Kenawy, El-Refaie S
AU  - Kenawy ES
AD  - Department of Chemistry, Faculty of Science, Tanta University, Tanta 31527, 
      Egypt.
FAU - Lin, Jianjian
AU  - Lin J
AUID- ORCID: 0000-0002-9424-3323
AD  - Key Laboratory of Eco-chemical Engineering, College of Chemistry and Molecular 
      Engineering, Qingdao University of Science and Technology (QUST), Qingdao 266042, 
      China.
LA  - eng
PT  - Journal Article
DEP - 20200825
PL  - United States
TA  - ACS Appl Mater Interfaces
JT  - ACS applied materials & interfaces
JID - 101504991
SB  - IM
OTO - NOTNLM
OT  - annealing
OT  - electrocatalysis
OT  - energy conversion
OT  - functional nanomaterials
OT  - heterostructured electrodes
OT  - layered hybrids
EDAT- 2020/08/19 06:00
MHDA- 2020/08/19 06:01
CRDT- 2020/08/19 06:00
PHST- 2020/08/19 06:00 [pubmed]
PHST- 2020/08/19 06:01 [medline]
PHST- 2020/08/19 06:00 [entrez]
AID - 10.1021/acsami.0c06141 [doi]
PST - ppublish
SO  - ACS Appl Mater Interfaces. 2020 Sep 9;12(36):40186-40193. doi: 
      10.1021/acsami.0c06141. Epub 2020 Aug 25.