21:I[432972,["/_next/static/chunks/bb923814e1f4d2e9.js","/_next/static/chunks/dd3ee9f5b7716ca6.js","/_next/static/chunks/4204a0ae82542ca8.js","/_next/static/chunks/1270dead247da766.js","/_next/static/chunks/6e1aa89a642f40be.js","/_next/static/chunks/2d7aa753e81324a8.js","/_next/static/chunks/8ffd0b71567920d8.js","/_next/static/chunks/67ea6dfd21f16c5f.js","/_next/static/chunks/24eb4379f68013fd.js","/_next/static/chunks/b8cd775ffdf935bd.js","/_next/static/chunks/983103cd9eb7b428.js","/_next/static/chunks/263f2cdcb9aa2341.js","/_next/static/chunks/294b9525248c8e5f.js"],"default"] 22:T4a7,In electrochemical energy storage and conversion systems, the anodic oxygen evolution reaction (OER) accounts for a large proportion of the energy consumption. The electrocatalytic urea oxidation reaction (UOR) is one of the promising alternatives to OER, owing to its low thermodynamic potential. However, owing to the sluggish UOR kinetics, its potential in practical use has not been unlocked. Herein, we developed a tungsten-doped nickel catalyst (Ni-WO_x ) with superior activity towards UOR. The Ni-WO_x catalyst exhibited record fast reaction kinetics (440 mA cm^-2 at 1.6 V versus reversible hydrogen electrode) and a high turnover frequency of 0.11 s^-1 , which is 4.8 times higher than that without W dopants. In further experiments, we found that the W dopant regulated the local charge distribution of Ni atoms, leading to the formation of Ni³⁺ sites with superior activity and thus accelerating the interfacial catalytic reaction. Moreover, when we integrated Ni-WO_x into a CO₂ flow electrolyzer, the cell voltage is reduced to 2.16 V accompanying with ≈98 % Faradaic efficiency towards carbon monoxide.23:T527,Urea oxidation reaction (UOR) is an ideal replacement of the conventional anodic oxygen evolution reaction (OER) for efficient hydrogen production due to the favorable thermodynamics. However, the UOR activity is severely limited by the high oxidation potential of Ni-based catalysts to form Ni³⁺ , which is considered as the active site for UOR. Herein, by using in situ cryoTEM, cryo-electron tomography, and in situ Raman, combined with theoretical calculations, a multistep dissolution process of nickel molybdate hydrate is reported, whereby NiMoO₄ ·xH₂ O nanosheets exfoliate from the bulk NiMoO₄ ·H₂ O nanorods due to the dissolution of Mo species and crystalline water, and further dissolution results in superthin and amorphous nickel (II) hydroxide (ANH) flocculus catalyst. Owing to the superthin and amorphous structure, the ANH catalyst can be oxidized to NiOOH at a much lower potential than conventional Ni(OH)₂ and finally exhibits more than an order of magnitude higher current density (640 mA cm^-2 ), 30 times higher mass activity, 27 times higher TOF than those of Ni(OH)₂ catalyst. The multistep dissolution mechanism provides an effective methodology for the preparation of highly active amorphous catalysts.24:T476,Abstract In electrochemical energy storage and conversion systems, the anodic oxygen evolution reaction (OER) accounts for a large proportion of the energy consumption. The electrocatalytic urea oxidation reaction (UOR) is one of the promising alternatives to OER, owing to its low thermodynamic potential. However, owing to the sluggish UOR kinetics, its potential in practical use has not been unlocked. Herein, we developed a tungsten‐doped nickel catalyst (Ni‐WO x ) with superior activity towards UOR. The Ni‐WO x catalyst exhibited record fast reaction kinetics (440 mA cm −2 at 1.6 V versus reversible hydrogen electrode) and a high turnover frequency of 0.11 s −1 , which is 4.8 times higher than that without W dopants. In further experiments, we found that the W dopant regulated the local charge distribution of Ni atoms, leading to the formation of Ni 3+ sites with superior activity and thus accelerating the interfacial catalytic reaction. Moreover, when

#	Concept	H-Index	Publications	Citations
1	Engineering	2	2	126
2	Chemical Engineering	2	2	126
3	Natural Sciences	1	1	95
4	Biochemistry	1	1	95
5	Chemistry	1	1	95

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