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Iodine-Doped Cobalt Phthalocyanine Supported on Multiwalled Carbon Nanotubes for Electrocatalysis of Oxygen Reduction Reaction

  • Authors: Nyoni, Stephen , Mashazi, Philani N , Nyokong, Tebello
  • Language: English
  • Type: Article
  • Identifier: vital:7242 , http://hdl.handle.net/10962/d1020246
  • Description: 4-(4,6-Diaminopyrimidin-2-ylthio) phthalocyaninatocobalt(II) (CoPyPc) was iodine doped, and its electrocatalytic properties explored. Physical characterization techniques such as UV-vis, X-ray photoelectron, electron paramagnetic resonance and infra-red spectroscopy were used. Cyclic voltammetry, electrochemical impedance spectroscopy and rotating disk electrode were used for electrochemical characterization of electrodes modified with the prepared phthalocyanine and its nanocomposites. The electrocatalytic effect of a new iodine-doped cobalt phthalocyanine derivative supported on multiwalled carbon nanotubes was then investigated towards oxygen reduction reaction. The electrocatalytic activity of the iodine-doped cobalt phthalocyanine was found to be superior in terms of current over the undoped phthalocyanine nanocomposite. , Original publication is available at http://dx.doi.org/10.1002/elan.201400499
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Is e-business the saving grace for retailers during Covid-19?

  • Authors: Kruger, Janine
  • Subjects: Electronic commerce , COVID-19 Pandemic, 2020- -- Economic aspects , f-sa
  • Language: English
  • Type: text , Lectures
  • Identifier: http://hdl.handle.net/10948/56470 , vital:56687
  • Description: The question can be asked whether e-business is the saving grace for retailers during Covid-19. Without pondering on the question, we will immediately say yes due to the lived experiences we all have as final consumers of retailers. However, before answering the question, it is important to consider what transpired within the retail business environment. The world has turned upside down towards the end of 2019 due to the outbreak of Covid-19 while South Africa felt the effect of Covid-19 as from March 2020. As cited by Verhoef, Noordhoff and Sloot (2022), the retail industry has been heavily affected by the pandemic. Not only has the retail industry been affected, the life of consumers also changed as consumers did not have direct access to their favourite traditional brick-and mortar-retailers. As the customers of these retailers, we have the lived experiences of not being able to patronise these retailers for an extended period of time. Due to the hard lockdown restrictions imposed within the business environment on brick-and-mortar retailers, the retailers had to find different ways to reach and provide need satisfying products to their customers. According to the World Trade Organization (WTO) (2020) and Rindita et al (2021, p.108), the pandemic provided retailers with a good opportunity to develop and adopt an e-commerce strategy that can act as an economic driver. In addition, Gramling, Orschell and Chernoff (2021) state that e-commerce is essential for future existence of businesses. This is evident when considering that the South African e-commerce sector grew by 66% in 2020 when 2 compared to 2019 while in-store shopping has declined by 30% (Kibuacha 2021). These results are expected if we take into account the trading restrictions imposed on brick-and-mortar retailers during the Covid-19 lockdown. In addition, a study by Deloitte in 2021 showed that more than 70% of South African consumers are shopping online at least once a month while citing convenience and saving time for doing so (Kibuacha 2021). However, whether businesses are implementing a new strategy or expand an existing strategy, the brick-and-mortar retailers were required to adapt their strategies with the focus on business survival.
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Jazz and all that jazz

  • Authors: Isingubu
  • Subjects: McGregor, Chris--1936-1990 , Blue Notes (Musical group : South Africa) , Jazz , Jazz musicians , Armstrong, Louis
  • Language: English
  • Type: Article
  • Identifier: vital:13545 , http://hdl.handle.net/10962/d1006428 , McGregor, Chris--1936-1990 , Blue Notes (Musical group : South Africa) , Jazz , Jazz musicians , Armstrong, Louis
  • Description: Photocopied article about Blue Notes and a concert at the African Music and Drama Centre at Dorkay House in Johannesburg, South Africa. There are 3 pictures with this article: The top picture shows Dennis Mpali playing trumpet, the left picture shows Dudu Pukwana playing saxophone in front of a crowd, and the right picture is a portrait of Louis Armstrong.
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Jazz as brought by Blue Notes

  • Authors: Mkhize, Nat
  • Subjects: McGregor, Chris--1936-1990 , Blue Notes (Musical group : South Africa) , Jazz
  • Language: English
  • Type: Article
  • Identifier: vital:13759 , http://hdl.handle.net/10962/d1012774
  • Description: Photocopied article about Chris McGregor's Blue Notes concert at the Durban City Hall. There are 2 pictures by photographer Nat Mkhize with this article. The top picture features Nick Moyake playing the tenor saxophone on stage. He is hiding Mongezi Feza playing trumpet and Johnny Dyani playing double bass. The bottom picture shows Johnny Dyani at the background playing double bass and Louis Moholo playing the drums.
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Jazz Epistle

  • Authors: Lawrence, Howard
  • Subjects: McGregor, Chris--1936-1990 , Dollar Brand , Jazz , Jazz Musicians , Blue Notes (Musical group : South Africa)
  • Language: English
  • Type: Text
  • Identifier: vital:13588 , http://hdl.handle.net/10962/d1012243 , McGregor, Chris--1936-1990 , Dollar Brand , Jazz , Jazz Musicians , Blue Notes (Musical group : South Africa)
  • Description: Photocopied article from the magazine The New African about multi-racial bands in South Africa. There is a picture of (from left to right) Ann, Dudu Pukwana and Chris McGregor on the second page.
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Jazz Festival: Brotherhood of Breath/Tony Williams Quintet

Jazz forum: Mongezi Feza

Jazz goes to college

  • Authors: Sehume, Leslie
  • Language: English
  • Type: Article
  • Identifier: vital:13650 , http://hdl.handle.net/10962/d1012559
  • Description: Photocopied article from the newspaper the Post about a concert by Chris McGregor and the Blue Notes at the University of the North (Turfloop). There are 3 pictures with this article. The top left picture shows Dennis Mpale playing trumpet, Chris McGregor playing piano and Dudu Pukwana playing saxophone. The middle picture, untitled "They dance blues away" and shows Mr. Abram Maja and his partner dancing and the top right picture is untitled "students gyrate to the McGregor music".
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Jazz in Britain

  • Authors: McRae, Barry
  • Subjects: McGregor, Chris--1936-1990 , Blue Notes (Musical group : South Africa) , Ronnie Scott's Club
  • Language: English
  • Type: Article
  • Identifier: vital:13608 , http://hdl.handle.net/10962/d1012474 , McGregor, Chris--1936-1990 , Blue Notes (Musical group : South Africa) , Ronnie Scott's Club
  • Description: Photocopied article from the monthly published magazine Jazz Journal about a concert by Chris McGregor and his band at Ronnie Scott's Club in London. Evan Parker (tenor saxophone), Mike Osborne (alto saxophone) and John Surman (soprano and baritone saxophone) joined the band.
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Jazz Informations

Jazz with a distinct character

  • Authors: McNeill, Richard
  • Language: English
  • Type: Article
  • Identifier: vital:13605 , http://hdl.handle.net/10962/d1012471
  • Description: Photocopied article from the newspaper The Star about South African jazz character, influences and styles.
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Jazz/The African sound

  • Authors: Breakey, Basil , Belnart, Julian
  • Subjects: McGregor, Chris--1936-1990 , Pukwana, Dudu , Feza, Mongezi , Moyake, Nikele , Beer, Ronnie , Mphali, Dennis , Castle Lager Big Band , Jazz musicians
  • Language: English
  • Identifier: vital:13560 , http://hdl.handle.net/10962/d1006444 , McGregor, Chris--1936-1990 , Pukwana, Dudu , Feza, Mongezi , Moyake, Nikele , Beer, Ronnie , Mphali, Dennis , Castle Lager Big Band , Jazz musicians
  • Description: Photocopied front and cover of LP's Jazz/The African Sound by Chris McGregor and the Castle Lager Big Band. The front cover shows 2 saxophonists playing. There are 6 pictures on the back cover. From the top picture to the bottom one, we can see Chris McGregor standing in front of the band, Dudu Pukwana playing saxophone and Kippie Moeketsi, Bob Tizzard playing trombone, Dennis Mpali playing trumpet, Nick Moyake playing tenor saxophone and Mongesi Feza playing trumpet.
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Jazz: The joint was jumping

  • Authors: Unknown
  • Subjects: McGregor, Chris--1936-1990 , Pukwana, Dudu , Orlando Stadium , Jazz , Jazz Musicians
  • Language: English
  • Type: Article
  • Identifier: vital:13720 , http://hdl.handle.net/10962/d1012732
  • Description: Photocopied article about the concert of Chris McGregor who assembled "the biggest and best African Jazz band in the Republic" at the Castle Beer's second Jazz Festival at Orlando Stadium.
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Jazzcentre National Tours

Jazzman Chris feels blue - and hungry

Jazzman dies

  • Authors: Unknown
  • Subjects: McGregor, Chris--1936-1990 , Jazz
  • Language: English
  • Type: Article
  • Identifier: vital:13721 , http://hdl.handle.net/10962/d1012734
  • Description: Photocopied obituary of Chris McGregor from the newspaper Cape Times. A picture of Chris McGregor is also accompanying this article.
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Jazzman dies in France

Jazzman McGregor dies from cancer

  • Authors: Swart, Kurt
  • Language: English
  • Type: Article
  • Identifier: vital:13652 , http://hdl.handle.net/10962/d1012561
  • Description: Photocopied obituary of Chris McGregor from the newspaper Sunday Times.
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JEOR Fagara Reprints.pdf

  • Authors: Oyedeji, Adebola Omowunmi
  • Language: English
  • Identifier: http://hdl.handle.net/11260/2492 , vital:41892
  • Description: Various articles from Prof Adebola Oyedeji
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